Academic literature on the topic 'Precast Building Systems'
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Journal articles on the topic "Precast Building Systems"
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Koyankin, Aleksandr Aleksandrovich, and Valeriy Mikhaylovich Mitasov. "CAST-IN-PLACE BUILDING FRAME AND ITS FEATURES AT SEPARATE LIFE CYCLES." Vestnik MGSU, no. 9 (September 2015): 28–35. http://dx.doi.org/10.22227/1997-0935.2015.9.28-35.
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Modern intensive development of precast-cast-in-place construction has led to creation of a wide range of various constructive systems of buildings during the last 100 years. They allow constructing buildings with best account of the requirements of functionality, architectural expressiveness, production possibilities of construction companies, etc. However in spite of this development both precast and cast-in-place housing construction has its peculiarities, positive and negative ones. The constructive systems of precast monolithic buildings existing at the moment are based on the required mutual deformation of prefabricated reinforced and cast iron reinforced concrete at the stage of a building construction and at the stage of its use as well. Having refused from this rule, the authors of this article have introduced a constructive system of a precast monolithic building able to bear loads, developing at the stage of erection (due to completion of a precast frame) and at the stage of use (due to completion of a precast monolithic frame). The offered construction of a precast monolithic building frame allows efficiently using the advantages of precast and cast-in-place construction minimizing their disadvantages and it also fully corresponds to the obligatory requirements to buildings. The corresponding patents are obtained.
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Ghosh, S. K., and Ned M. Cleland. "Performance of Precast Concrete Building Structures." Earthquake Spectra 28, no. 1_suppl1 (2012): 349–84. http://dx.doi.org/10.1193/1.4000026.
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The Precast/Prestressed Concrete Institute (PCI) sent an assessment team to Chile, which visited the areas affected by the 27 February 2010 earthquake between 26 and 30 April 2010. This paper reports on the team's observations on the performance of precast/prestressed concrete structures. The precast concrete building systems observed by the PCI team generally performed well. In some cases, the lateral force-resisting system performed satisfactorily, but the absence or weakness of diaphragm framing resulted in local failures. Overall, the PCI team found a mature and sophisticated precast concrete industry that has successfully considered and solved issues of earthquake resistance without some of the constraints imposed on U.S. practice by restrictive building code provisions.
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Prof.Eshwaraj, Dr. Vinod B R, Dr. Ananthayya M B, and Prof. Gowtham B. "Precast Concrete Construction Technology." International Research Journal on Advanced Science Hub 7, no. 02 (2025): 70–78. https://doi.org/10.47392/irjash.2025.009.
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Multi-storey building would be the greater part influenced by quake constrains to seismic prone areas. The major concern in the design of the multi-Storey building is the structure to have enough lateral stability to resist lateral forces buckling to control lateral drift and displacement of the building. The application of the shear wall system in Reinforcement concrete (RC) building has been widely used to minimize seismic consequences. Besides, the building with concentrated steel bracing system is used for the building. Both of the system has significance of the structural performance. Although both systems are used for same reason, their effect shows unequal variation and behaviours against seismic load. In the Project, G+10 storey building, along with shear wall and bracing are being considered for the analysis. The performance of building will be evaluated on the basis of following parameters Story displacement, Storey drift. In this work, the shear wall and bracing are provided at different locations with the overall analysis to be carried out using STAAD PRO Reinforced concrete structures are in greater demands in construction because the construction becomes quite convenient and economical in nature. RCC construction is best suited for low rise building but in High rise building construction are composite is a better option among the RCC and steel Structure.
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Ismail, Zul-Atfi. "Lesson learned in maintaining the precast concrete buildings." Journal of Facilities Management 18, no. 3 (2020): 341–59. http://dx.doi.org/10.1108/jfm-04-2020-0029.
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Purpose The purpose of this study is to identify existing weaknesses in precast concrete building maintenance and how to overcome it. The contemporary practice of conventional methods in the pre-cast concrete (PC) building maintenance entails many issues such as PC component aesthetic and structural defects, no integration between maintenance systems and lack the intelligent capabilities of linking defect diagnosis operations in maintenance due to poor service delivery and defect repetition. A key problem impeding the widespread adoption of emerging technologies is the lack of competent contractor supporting the effectiveness of implemented information and communication technology than conventional methods and the returns on investment. Design/methodology/approach The shortcomings of conventional methods are assessed from the perspective of PC buildings. Several data were collected through a case study of eight PC buildings from high-rise and complex buildings. Findings The conventional methods had significantly little emphasis on defect diagnosis tools. It had also increased the inadequate strategic decision making to analyse information in improving the maintenance project outcomes for PC building. Originality/value Building information modelling tools is suggested from findings and lessons learned as a good practice to reduce the repetition of defects on the design specification used and construction practiced.
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Kawamura, M. "Standards, Systems and Utilization for Precast Concrete ③Accreditation Systems Relating to Precast Concrete Used in Building Field." Concrete Journal 61, no. 4 (2023): 333–39. http://dx.doi.org/10.3151/coj.61.4_333.
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Strelkova, Mariia D., Ksenia I. Strelets, Victor Z. Velichkin, and Marina V. Petrochenko. "The application efficiency of precast monolithic frame systems in civil engineering." Vestnik MGSU, no. 11 (November 2021): 1493–507. http://dx.doi.org/10.22227/1997-0935.2021.11.1493-1507.
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Introduction. The partial replacement of cast-in-situ concrete with precast concrete in the residential construction sector allows to reduce construction time and cost, increase labour productivity and cut CO2 emissions. Combinations of prefabricated and monolithic elements in precast monolithic frames are presented; they encompass 6 different structural options of precast monolithic frames and 2 types of monolithic frames. The co-authors compare production costs and integrated labor intensity for all frame design options, construction periods per 1,000 m3 of a residential building for various structural options of the frame, and assess potential reduction in carbon dioxide emissions due to a change in the amount of precast reinforced concrete in the building frame structure.
 Materials and methods. The co-authors have developed a method that employs weighted average to identify the optimal type of a precast monolithic frame. The method takes account of such factors as production costs, integrated labour intensity, construction time and reduction in carbon dioxide gas emissions (in per centum) per 1,000 m3 of the frame structure.
 Results. The optimal structure of a precast monolithic frame was selected and calculated using weighted average. Weighted average was used to identify the most effective structural frame. The calculation results have shown that ARKOS precast monolithic frame with precast columns is the leader in terms of weighted average; it best suits the construction of a residential building. If we consider each of the selected indicators separately, RECON frame with precast floors is to be selected; however, RECON is inferior to ARKOS in terms of weighted average due to different values of the weight coefficients attached to each of the assessment criteria.
 Conclusions. The co-authors have proven the efficiency of precast monolithic frame systems in comparison with monolithic frames if applied to construct a residential building. The proposed method was employed to select the optimal type of frame.
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Arastu, Mohammad, and Prof Khalid Moin. "Study of Progressive Collapse of Precast Steel Reinforced Concrete Building." International Journal of Recent Technology and Engineering (IJRTE) 12, no. 1 (2023): 81–94. http://dx.doi.org/10.35940/ijrte.a7617.0512123.
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Progressive collapse starts when any load-carrying elements of the building collapse during extreme loading, such as earthquakes, blasts, or fire. The Precast Steel Reinforced Concrete (PSRC) buildings comprise of precast RCC columns and steel girders. These structural elements are connected to form a moment-resisting frame and are susceptible to progressive collapse. However, this structural system has the advantage of inherent stiffness and damping during lateral loads and is also known for its construction efficiency, lightweight and low cost. Earlier investigations have shown PSRC systems useful in designing and constructing buildings while maintaining ample strength and high ductility during seismic incidents. Despite much previous research, the PSRC structural system's use is limited in high seismic regions. This paper aims to study the progressive collapse of the PSRC building using non-linear dynamic analysis and U.S. General Service Administration (GSA) guidelines during extreme loading. Two structures are studied to validate the performance of progressive collapse of PSRC and RCC structures. Four-story PSRC and RCC buildings are designed according to Indian Codes of practice. Design columns under provisions of the Indian reinforced concrete structures code, and beams are designed according to the Indian steel construction code. Comparative studies of progressive collapse for the two buildings are presented.
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Mohammad, Arastu, and Khalid Moin Prof. "Study of Progressive Collapse of Precast Steel Reinforced Concrete Building." International Journal of Recent Technology and Engineering (IJRTE) 12, no. 1 (2023): 81–94. https://doi.org/10.35940/ijrte.A7617.0512123.
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<strong>Abstract:</strong> Progressive collapse starts when any load-carrying elements of the building collapse during extreme loading, such as earthquakes, blasts, or fire. The Precast Steel Reinforced Concrete (PSRC) buildings comprise of precast RCC columns and steel girders. These structural elements are connected to form a moment-resisting frame and are susceptible to progressive collapse. However, this structural system has the advantage of inherent stiffness and damping during lateral loads and is also known for its construction efficiency, lightweight and low cost. Earlier investigations have shown PSRC systems useful in designing and constructing buildings while maintaining ample strength and high ductility during seismic incidents. Despite much previous research, the PSRC structural system's use is limited in high seismic regions. This paper aims to study the progressive collapse of the PSRC building using non-linear dynamic analysis and U.S. General Service Administration (GSA) guidelines during extreme loading. Two structures are studied to validate the performance of progressive collapse of PSRC and RCC structures. Four-story PSRC and RCC buildings are designed according to Indian Codes of practice. Design columns under provisions of the Indian reinforced concrete structures code, and beams are designed according to the Indian steel construction code. Comparative studies of progressive collapse for the two buildings are presented.
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Polat, Gul. "PRECAST CONCRETE SYSTEMS IN DEVELOPING VS. INDUSTRIALIZED COUNTRIES." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 16, no. 1 (2010): 85–94. http://dx.doi.org/10.3846/jcem.2010.08.
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Precast concrete technology is recognized worldwide as offering significant advantages. Despite the advantages they offer, precast concrete building systems’ share in both Turkey and the U.S. is very low, especially when compared to many European countries. Since Turkey is a developing country that is technologically dependent on the developed world, low share of industrialized building systems is highly expected in that country. However, the U.S. is a developed and industrialized country, so it was very interesting to see that these systems are not extensively used in that country either. This study investigated the factors that prevent the extensive use of precast concrete systems in the U.S. and Turkey through an extensive questionnaire survey. The survey results revealed that the perceptions of the American vs. Turkish respondents on most of the factors that affect the use of precast concrete systems are significantly different from each other. While American respondents considered size and load restrictions on transportation, poor communication among parties, and lack of qualified contractors specialized in precast concrete systems as three most important barriers to the extensive use of precast concrete systems in the U.S. building construction market, Turkish respondents ranked lack of good communication among parties and lack of structural engineers and contractors specialized in precast concrete systems as the most important three factors that prevent the extensive use of these systems in Turkey. This study indicated that precast concrete users and manufacturers should recognize that the main reasons for low utilization of precast concrete systems predominantly depend on the prevailing conditions of the country in question. Santrauka Surenkamojo gelžbetonio technologija visame pasaulyje pripažistama del daugelio svarbiu pranašumu. Nepaisant ju, surenkamojo gelžbetonio statybos sistemu dalis Turkijoje ir JAV, palyginti su kitomis Europos šalimis, yra labai maža. Turkija yra besivystanti šalis, kurios technologiju pletote priklauso nuo išsivysčiusiu šaliu, tad maža surenkamosios statybos sistemos dalis yra pagrista. Tačiau JAV yra išsivysčiusi ir industrializuota šalis, bet šiu sistemu naudojimo mastas šalyje yra mažas. Remiantis išsamia apklausa straipsnyje atlikta maža surenkamuju betono sistemu naudojimo JAV ir Turkijoje apimti lemiančiu veiksniu analize. Apklausos rezultatai parode, kad JAV ir Turkijos respondentu nuomonL del daugelio veiksniu labai skyresi. JAV respondentai nurode, kad trys pagrindiniai veiksniai, ribojantys surenkamuju gelžbetonio sistemu naudojima JAV statybos rinkoje, yra: transportavimo apribojimai del dydžio ir svorio; silpnas ryšys tarp statybos proceso dalyviu; kvalifikuotu statybos rangovu, kuriu specializacija ‐ surenkamieji statybos elementai, trūkumas. Turkijos respondentai pagrindinLmis priežastimis laiko bendradarbiavimo tarp statybos proceso dalyviu stoka ir specializuotu statybos projektuotoju bei rangovu trūkuma. Atlikta studija parodL, kad surenkamojo gelžbetonio sistemu naudotojai ir gamintojai turetu pripažinti, jog menka surenkamuju gelžbetonio sistemu naudojimo apimtis pirmiausia priklauso nuo šalyje dominuojančiu statybos salygu.
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Dewanto, Rivanus. "Application Time Management of Concrete Precast Wall Work on High-rise Campus Building." IOP Conference Series: Earth and Environmental Science 1169, no. 1 (2023): 012045. http://dx.doi.org/10.1088/1755-1315/1169/1/012045.
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Abstract In the implementation of building construction, especially in the context of functionality of campus buildings, punctuality is an important thing that must be strictly followed because it concerns the start of lecture schedules that cannot be delayed. Therefore, it is necessary to have precise time management of building construction during all the implementation. It’s cannot be separated in building construction between the innovation of work methods and improvisation of quality control which are two processes that need to be implementation in an effort to achieve efficiency and. One of the innovations in building construction, is installation of a concrete precast wall as a cover for the facade of the Binus campus building. Concrete precast wall is made of a good material, as an effort to reduce solar heat entering the room. Furthermore, all existing constraints must be mapped properly as support implementation concrete precast wall. One of antecedents of implementation concrete precast wall in building construction is time management of machine construction tools when use tower crane. Researcher knows the issues of building construction are limitations time using tower crane efficiently, working tools, weather conditions, time of material application, labelling system, quality control mechanism and installation system. In other side, those strengths, weaknesses, opportunities, threats, that can be used as an approach and analysis, start from resource mapping, work requirements, material quality control and coordination systems between sub-supporters. The success of this work depends on the application and coordination calculation time, inspection and quality procedure is main of a consistent methodology from manufacturing in the workshop to installation in the field. In addition, efficiency and effectiveness can provide good quality, saving time and costs.
Dissertations / Theses on the topic "Precast Building Systems"
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Tretyakov, Alexey. "Průmyslový objekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240409.
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In this thesis is solved detail design of industrial building. It is a new storage hall and connected to it the two-story office building. Building is located in the production area of factory, on the cadastral area Holice u Olomouce. The purpose of the building is storage and expedition of the products. In areas of an office building is located facilities for staff of hall and office workspace. Handling products in the hall will be performed by a forklift. The building is designed for a capacity of 15 employees. The office building has a load bearing structural system. Walls and ceiling structures are made up of panels of filigree. Foundations, including flooring of the first floor, are constructed from waterproof concrete. The office building is roofed by flat roof. The main supporting structure of the storage hall is designed as precast reinforced concrete frame. Cladding consists of insulating panels. Like in the office building, the hall is roofed by flat roof. Due to anticipate of the differential settlement of the office building and the storage hall parts are separated by a dilatation joint.
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Peng, Brian Hsuan-Hsien. "Seismic performance assessment of reinforced concrete buildings with precast concrete floor systems." Thesis, University of Canterbury. Civil and Natural Resources Engineering, 2009. http://hdl.handle.net/10092/3103.
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In the seismic design of reinforced concrete frames, plastic hinges are allocated to beams such that a ductile beam-sway mechanism will form in preference to other less ductile mechanisms in the event of a major earthquake. This is achieved by ensuring that the flexural strength of columns is greater than that corresponding to the maximum likely flexural strength of beam plastic hinges.
Recent experimental studies in New Zealand have shown that elongation of ductile beam plastic hinges, and its interaction with nearby floor slab containing precast-prestressed floor units, increases the strength of beams much more than that specified in New Zealand and American Concrete standards. This level of strength enhancement has raised concern on the adequacy of the current design provisions. To further investigate this problem, a research project was initiated to examine the strength of beam plastic hinges in reinforced concrete frames containing precast-prestressed floor units.
In this research, the strength of beam plastic hinges was assessed through experimental and analytical studies. A three-dimensional, one-storey, two-bay reinforced concrete moment resisting frame with prestressed floor units and cast-in-situ concrete topping was tested under quasi-static displacement-controlled cyclic loading. The experimental results provided insight into the mechanics associated with frame-floor interaction. Subsequently, improved design specifications were proposed based on the observed behaviour.
To analytically predict the beam-floor interaction, a ductile reinforced concrete plastic hinge multi-spring element was developed and validated with experimental results from cantilever beam and frame sub-assembly tests reported in the literature. The comparisons have demonstrated the ability of the proposed plastic hinge element to predict the flexural, shear, axial, and most importantly, elongation response of ductile plastic hinges.
The proposed plastic hinge element was implemented into an analytical model to simulate the behaviour of the frame-floor sub-assembly tested in this research. Specially arranged truss-like elements were used to model the linking slab (the region connecting the main beam to the first prestressed floor unit), where significant inelastic behaviour was expected to occur. The analytical model was found to be capable of predicting the non-linear hysteretic response and the main deformation mechanisms in the frame-floor sub-assembly test.
The analytical frame-floor model developed in this study was used to examine the effect of different structural arrangements on the cyclic behaviour of frames containing prestressed floor units. These analyses indicated that slab reinforcement content, the number of bays in a frame and the position of frame in a building (i.e., perimeter or internal frame) can have a significant influence on the strength and elongation response of plastic hinges.
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Strabeli, Giovana Innocenti. "Diretrizes para projeto e desempenho de sistemas construtivos em painéis pré-moldados de concreto : edifícios habitacionais." Universidade Federal de São Carlos, 2015. https://repositorio.ufscar.br/handle/ufscar/7773.
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Previous issue date: 2015-08-27<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>The estimated housing deficit in Brazil was 5.6 million in 2008, in which 83.5% was in urban areas, wherein to meet such demand there is a need for industrialized construction. Prefabricated building systems with precast panels for residential buildings were largely applied in Europe after the Second World War and it has been applied recently in countries of Latin America and Asia. Although construction companies have been using building systems with precast panels for affordable housing in Brazil since the 80´s, the absence of a prescriptive code of practice for design of precast panels demands certification for each system, which needs to meet the performance requirements according to ABNT-NBR 15575:2013. In order to increase the application of prefabricated systems a new Brazilian Code of Practice for Precast Panels, based on international codes, has been concluded and it is now waiting for final approval. In order to achieve optimum performance, constructability and sustainability of the building project there is a need for integration between architectural and structural designs, as well the interaction between product and production, starting from product development based on the analysis of added value for each project until the rationalization of the processes. The level of prefabrication depends on the number and repetition of units. The aim of this research is to identify and define design guidelines based on performance for building systems with precast concrete panels for residential buildings. The literature revision was carried out starting from international references and codes until the study of the Brazilian codes of practice, including the new code for precast concrete panels. In addition, the research presents the main types of panels and typologies for residential buildings with potential to be applied in Brazil. Finally, an example of performance based design for precast concrete panels is presented with some discussions. This study demonstrate that architects and structural engineers can now design building systems with precast panels based on the new codes of practice and numeric simulations without the need of further tests for certification.<br>O déficit habitacional no Brasil era de 5,6 milhões em 2008, sendo 83,5% na área urbana, onde para atender esta demanda seria necessário o emprego da construção industrializada. Sistemas construtivos com painéis pré-moldados para residências
foram amplamente aplicados na Europa após a Segunda Guerra Mundial, e também têm sido aplicados recentemente em países da América Latina e Ásia. Embora construtoras venham utilizando sistemas com painéis pré-moldados para habitações no Brasil desde a década de 80, a falta de normas prescritivas para projeto em painéis demanda certificações para cada sistema, que precisam atender aos requisitos de desempenho conforme a ABNT NBR 15575:2013. Com o objetivo de aumentar a aplicação de sistemas pré-fabricados, uma nova norma de prescrições brasileira, baseada em referências técnicas e normativas internacionais, foi concluída e aguarda sua aprovação final. Somente com integração entre os projetos
das diferentes disciplinas é possível obter uma otimização de desempenho, construtibilidade e sustentabilidade da edificação, mas também deve haver a interação de projeto enquanto produto e produção, partindo do desenvolvimento do produto, com análise do valor agregado para cada solução de projeto até a racionalização do processo de produção, onde o nível de pré-fabricação depende do número e repetição das unidades a serem empreendidas. O objetivo desta pesquisa é identificar e sistematizar diretrizes de projeto com base no desempenho para sistemas construtivos em painéis pré-moldados de concreto, com aplicação em edifícios habitacionais. A revisão da literatura foi desenvolvida a partir das referências e normas internacionais, passando pelo estudo de normas brasileiras, incluindo o projeto de norma de painéis pré-moldados de concreto. Além disso, esta pesquisa apresenta os principais tipos de painéis e principais tipologias com potencial de aplicação para construções residenciais no Brasil. Finalmente, apresenta-se um exemplo de aplicação de avaliação de desempenho com a discussão de alguns resultados. Este estudo demonstra que arquitetos e engenheiros estruturais poderão, com a aprovação da nova normalização brasileira, desenvolver projetos com painéis pré-moldados em concreto com base em
prescrições técnicas e simulações numéricas, sem a necessidade de se realizar novos ensaios para certificação para cada nova aplicação de sistemas construtivos pré-fabricados com painéis.
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Šimek, Pavel. "Polyfunkční dům." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226702.
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Master´s thesis is designed as a complete documentation of a multifunctional house. The multifunctional house is located in the town Nová Paka and functionally designed as a restaurant, garages and 8 flats. Built-up area is 886.95 square meters. The building is covered with a flat roof. The supporting structure is designed prefabricated reinforced concrete frame. Infill walls are made of clay blocks Porotherm. The house is insulated contact system ETICS. The thesis contains a static layout, fire safety, energy saving and safety in use. Drawings were processed with software for design - ArchiCAD.
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Andersson, Robin. "Combining Anomaly- and Signaturebased Algorithms for IntrusionDetection in CAN-bus : A suggested approach for building precise and adaptiveintrusion detection systems to controller area networks." Thesis, Malmö universitet, Fakulteten för teknik och samhälle (TS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-43450.
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With the digitalization and the ever more computerization of personal vehicles, new attack surfaces are introduced, challenging the security of the in-vehicle network. There is never such a thing as fully securing any computer system, nor learning all the methods of attack in order to prevent a break-in into a system. Instead, with sophisticated methods, we can focus on detecting and preventing attacks from being performed inside a system. The current state of the art of such methods, named intrusion detection systems (IDS), is divided into two main approaches. One approach makes its models very confident of detecting malicious activity, however only on activities that has been previously learned by this model. The second approach is very good at constructing models for detecting any type of malicious activity, even if never studied by the model before, but with less confidence. In this thesis, a new approach is suggested with a redesigned architecture for an intrusion detection system called Multi-mixed IDS. Where we take a middle ground between the two standardized approaches, trying to find a combination of both sides strengths and eliminating its weaknesses. This thesis aims to deliver a proof of concept for a new approach in the current state of the art in the CAN-bus security research field. This thesis also brings up some background knowledge about CAN and intrusion detection systems, discussing their strengths and weaknesses in further detail. Additionally, a brief overview from a handpick of research contributions from the field are discussed. Further, a simple architecture is suggested, three individual detection models are trained and combined to be tested against a CAN-bus dataset. Finally, the results are examined and evaluated. The results from the suggested approach shows somewhat poor results compared to other suggested algorithms within the field. However, it also shows some good potential, if better decision methods between the individual algorithms that constructs the model can be found.
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Wrana, Lukáš. "Hasičská stanice." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265476.
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The subject of this thesis is to create a project documentation of the design of new construction of fire station in Šumperk. The fire station is designed according to ČSN 73 5710 as a C type station that will be used by professional fire brigade of Olomouc district. The object is structurally divided into two parts - a masonry building, and a reinforced concrete frame. The administrative part of the building together with the base of the fire brigade, technical room, and a fire tower are designed as a masonry building made of Ytong cellular concrete units. One of the parts is designed as a two-level object, while the technical room and the fire tower are designed as a sigle-level object. The circumferential masonry is insulated by contact thermal insulation system. The floor construction is made of Spiroll prestressed floor slabs. The roof is designed as a warm flat roof. The garage is a single-level building with built-in structure of storerooms in part of the garage. The precast reinforced concrete frame is set on foundation pads and foundation sills. The horizontal and vertical supporting structure consists of reinforced concrete parts – columns, Spiroll floor slabs, floor girders, sway frames, purlins and small purlins. The whole object is covered by a warm flat roof. The external cladding consists of PUR isolating sanwich panels.
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Oliveira, Luciana Alves de. "Metodologia para desenvolvimento de projeto de fachacas leves." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/3/3146/tde-08092010-125813/.
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A vedação de fachada, incluindo esquadrias e revestimento, um dos mais relevantes subsistemas do edifício, é responsável pelas condições de habitabilidade e estética, contribui para a valorização do empreendimento e tem um papel importante com relação à sustentabilidade. Além disso, os custos de execução e de manutenção da fachada são expressivos com relação aos dos outros subsistemas. Pela sua importância técnica e econômica, as tecnologias construtivas responsáveis pela execução das fachadas, frequentemente, passam por evoluções, como o surgimento das tecnologias de fachadas leves, as quais podem ser empregadas em vários segmentos da construção. Dois desses segmentos são o da construção de edifícios comerciais e o de reabilitação ou renovação de edifícios. Entretanto, essas tecnologias ainda são carentes de desenvolvimentos tecnológicos nacionais mais específicos e projetos melhor elaborados, nos quais se considerem questões do processo de projeto e de execução, bem como do desempenho da fachada em uso, como segurança, eficiência energética, isolamento acústico, estanqueidade à água, durabilidade e manutenabilidade. Nesse contexto, o objetivo deste trabalho é propor uma metodologia para o desenvolvimento do processo de projeto de vedações de fachada, particularizados para as tecnologias de fachadas leves, para edifícios comerciais de múltiplos pavimentos, considerando tanto a possibilidade da construção quanto da renovação, discutindo-se aspectos de gestão e tecnologia. A proposição da metodologia foi baseada em estudos bibliográficos e em comparações entre exemplos reais do processo da produção de empreendimentos de construção e renovação no Brasil e na França. Dessa forma, o desenvolvimento e conclusão deste trabalho foram divididos em quatro grupos: estudos no Brasil; estudos na França; análise comparativa dos resultados desses estudos; e elaboração da metodologia e sua discussão. A metodologia proposta considera de forma sistêmica alguns aspectos do processo de projeto, particularizados para as tecnologias de fachadas leves, contemplando aspectos de gestão e de tecnologia, incorporando contribuições de um grupo de profissionais.<br>The facades are considered one of the most relevant building subsystems, contributing both to building valuation and its performance, and has a great importance concerning the sustainability. In addition, its execution and maintenance costs are expressive when compared to others subsystems. Because of its economical and technical importance, the façade technologies have been passing through constant evolution, for example the development of the lightweight façades system that can be used in many construction segments, as commercial building construction and building renovation. Although the use of lightweight façades technologies is increasing worldwide, its application in Brazil requires more precise researches regarding design and construction management and also performance requirements, as security, thermal and acoustic isolation, energy efficiency, watertightness, durability and maintenance. In this context, the objective of this work is to propose a methodology to develop the design process of the lightweight facade system for office buildings, applicable either to construction either to building renovation, discussing management and technology aspects. This work will be based on existing bibliography and on comparative study between Brazilian and French construction and renovation building practices. Thus, this work was divided in four stages: Brazilian studies; French studies; comparative analyses between these studies; and elaboration of the methodology. Concluding, the methodology proposed considers some aspects of the design process, particularized to lightweight façade technologies, taking into account management (agents, design management phases and aims, interfaces, technology selection and design and product critical analyses) and technological aspects (façade performance specifications).
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Kučera, Filip. "Administrativní budova." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-410036.
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The final thesis deals with design of new administrative object. The administrative object is located in edge part of Znojmo city. The building is situated in built-up area, which is used for housing and services. The building is accessible as a detached house on a slightly sloping territory. It is a four-storey house with a cellar, terminated by a warm flat roof, which has three-storey and basement. On the above ground floors are located offices and their associated spaces, staff facilities and toilets. On the third floor there is a terrace for employees’ stay in the summer months. On the third floor there is a collective garage with twenty parking spaces too. The individual floors are accessed via the main staircase and elevator. The building is designed as reinforced precast concreate frame and is based on prefabricated reinforced concrete foundation pads. The infill and internal wall are designed from the Porotherm building system.
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Večeřa, Lukáš. "Víceúčelový objekt Brno." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240308.
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This thesis solves new building multifunctional building in Brno in the form of documentation for construction. The work contains text, drawings and calculation part. The building is designed as a detached and located in a slightly sloping terrain. The new building is designed as a four-storey with basement and three floors. The facility is designed sixteen and four residential rental units. The structural system is a cross- walled ceramic fittings. Horizontal structures ceilings are made of precast filigree ceiling tiles with nadbetonovanou distribution plates. The roof is designed as a single-layer flat. Part of the main road in the building is designed passenger elevator. The work process basic assessment of building in terms of building physics and approximate calculation of the base area.
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Cheng, Yeng-Mei, and 鄭吟梅. "Integrated Technology Information System of Precast Building." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/49178123597587170074.
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碩士<br>國立臺灣科技大學<br>營建工程技術學系<br>83<br>Traditionally, technology information has been kept in several
media; technical books and reports, magazines, catalogs, the
human''s experience, and so on. Unfortunately, the industry
still lacks an extensible and integrated system for organizing
technology information in a reasonable way so as to support the
rapid identification and evaluation of potential technology
solutions during the design and construction planning stages.
Even though information proliferates, it is too unstructured to
be readily usable at a moment''s notice. This lack of
organization is probably the major cause of the slow rate of
technology transfer and adoption in the construction industry.
The objectives of this research are to develop a more flexible
and expandable system which encompasses all the technology
information that might be required for planning and design
decisions, while satisfying the user''s needs for various
degrees of detail at different design and planning stages. A
new object-oriented data model is presented as a solution to
integrate construction technology elements vertically and
laterally. Furthermore, a prototype implementation of the model
using Foxpro 2.5b is described and the technology information
of precast buildings is also input to verify the applicability
of the system.
Books on the topic "Precast Building Systems"
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Association, Portland Cement, and Inc Building Works. Concrete Systems for Homes and Low-Rise Construction (Portland Cement Association). McGraw-Hill Professional, 2005.
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Association, Portland Cement, and Inc Building Works. Concrete Systems for Homes and Low-Rise Construction (Portland Cement Association). McGraw-Hill Professional, 2005.
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O’Connor, David E. Deciphering Economics. ABC-CLIO, LLC, 2014. http://dx.doi.org/10.5040/9798400638503.
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This compact yet comprehensive guide provides a wealth of information that is timely, easy to understand, and relevant to the academic and civic lives of students, teachers, researchers, and the general public. Economics surround us, impacting the decisions people make as consumers, producers, workers, savers, investors, taxpayers, and voters. This guide offers a thorough and understandable overview of basic economic concepts and principles, providing building blocks for understanding the systems of economics in today's complex world. It then explores contemporary, economics-related topics, issues, and challenges that exist within local communities, the U.S. economy, and the global economy. Using language that is clear, precise, and accessible to high school and community college students as well as to general readers, the book covers microeconomic topics, macroeconomic topics, and international economics. It connects theory and practice as it examines how economic decisions are made and looks at the roles of the private and public sectors in achieving growth, stability, and employment. In addition, the author explores overarching trends in the global economy and the prospects for economic development in emerging nations and offers specific ways to locate other quality print and online resources on economics.
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Balyshev, Marat. Astronomical research in Kharkiv at the end of the 19th century – the first half of the 20th century. “Naukova Dumka”, 2022. http://dx.doi.org/10.15407/978-966-00-1863-1.
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The main milestones of the formation and development of astronomical science in Kharkiv during 1883–1945 are reconstructed on the example of the activities of the astronomical observatory of Kharkiv University. During this period, the outstanding worldview science in Kharkiv has achieved significant success: the works of Kharkiv astronomers have received world recognition; a well-known scientific planetary school has been established at the Observatory; the scientific community highly appreciated the research on the physics and chemistry of the Moon, the giant and small planets of the Solar System. The primary goal of the research is to inscribe the history of the university Observatory into the European and world context. Its purpose is to summarize the results of a comprehensive historical ad scientific study of the development of astronomical research in Kharkiv at the end of the 19th century – the first half of the 20th century and identification of ways of further scientific research. The completed research, which continues the problems of works devoted to the study of the history of astronomical science in Ukraine, focuses on expanding the well-known source base by attracting new retro-information resources. In particular, the monograph used a significant array of archival primary sources from almost twenty archival and library institutions of different countries. Most of them were introduced into scientific circulation for the first time, which allowed to determine and specify the sequence of stages of development of astronomical science in Kharkiv during the research period, to clarify and identify the little-known circumstances of the observatory life. The methodological basis of the study is the principles of historism, objectivity and a systematic approach to studying the problem. To solve specific problematic tasks in the monograph, general scientific and specially historical methods were used which allowed to study, analyze and summarize the presented factual material in a complex manner. The main sections of the monograph represent the dynamics of replenishment of the instrumental base of the university observatory, the chronology of the construction of the observatory complex of buildings at the location of the modern Scientific Research Institute of Astronomy of the V. N. Karazin Kharkiv National University. According to the author’s periodization, the stages of formation of subjects and directions of scientific work of university astronomers have been analyzed, including: seismic observations with the help of horizontal Rebeur-Paschwitz pendulums, research of the activity of the Sun, astrometric observations on the Repsold meridian circle of for the purpose of compiling a catalog of zodiac stars, studying lunar eclipses and meteor showers. The participation of university astronomers in the creation of the plan of the city of Kharkiv and its connection with the general network of precise geometric leveling of the Military Topographic Department of the General Staff; the organization of observations by an expedition of Kharkiv astronomers of the total Solar eclipse of 1914 in Henichesk; the creation of the School-workshop of precision mechanics at the Faculty of Physics and Mathematics of Kharkiv University were considered; information on the participation of Kharkiv astronomers in the events of the civil war during the Ukrainian Revolution was documented. The scientific research activity of Kharkiv astronomers during 1920-1930-s which was devoted to carrying out important astrometric works on meridian observations of star declinations by absolute methods and observations of Kopf-Rentz stars according to the programs of the International Astronomical Union; the initiation of the creation of the Catalog of faint stars; research in astrophysics aimed at studying the physical conditions on the Moon and the Sun, planets and the interstellar environment; performing long series of spectrophotometric observations of the Moon, Jupiter, Mars and Saturn under different conditions of observation; study of the kinematics of stellar systems of different order, the physical parameters and evolution of stars, the morphology of the Galaxy, the nature of the stellar subsurfaces and atmospheres, dust and gas nebulae, new stars and the variability of stars have been considered; the directions of solid works carried out in the field of celestial mechanics, devoted to the dynamics of the minor planets of the Jupiter group, the definition and improvement of the orbits of minor planets have been clarified. The development of amateur astronomy in Kharkiv, in particular, the functioning of circles and societies that directed their activities to the dissemination of astronomical knowledge, was highlighted; the participation of their representatives in astronomical observations at the Kharkiv Astronomical Observatory was emphasized. Reconstructed the development of historical events in the 1930s related to the involvement of Soviet and Western astronomers in the processes of political confrontation between the USSR and the Western world; investigated the course of circumstances that prevented the implementation of the project of creating a new modern astronomical center of national importance – the central Ukrainian observatory in Kharkiv; the participation of an expedition of Kharkiv astronomers in the observation of the «great Soviet eclipse» – the total solar eclipse of 1936 – in the North Caucasus is highlighted; established the facts of political «purges» and repressions by the People’s Commissariat for Internal Affairs ( the NKVD) in the Kharkiv Astronomical Observatory. The activity of the Kharkiv Astronomical Observatory has been documented and authentic biographical information about its representatives during the Nazi occupation of 1941–1943, the period of the German-Soviet war, has been presented; the unpopular facts of the forced collaboration of some scientists are highlighted; the process of recovery and reconstruction of the Kharkiv Astronomical Observatory after the liberation of the city is characterized. With the aim of researching the personal history of Kharkiv astronomy of the studied period, the monograph presents the results of a historical and biographical study of facts of life and scientific heritage of scientists who fully devoted themselves to Science, laid the foundations for the future development of many directions of modern astronomical research, made a significant contribution to the treasury of the national and European astronomical science, whose activities were connected with the Kharkiv Astronomical Observatory, in particular: Grigory Levytsky, Ludwig Struve, Mykola Evdokymov, Otto Struve, Mykola Barabashov, Boris Gerasimovich, Vasil Fesenkov, Oleksiy Razdolsky, Boris Ostashchenko-Kudryavtsev, Nicholas Bobrovnikov, Paraskovia Parkhomenko, Mstislav Savron, Boris Semeykin, Kostyantyn Savchenko and others (25 biographical essays are presented). A significant part of the mentioned factual material was also introduced into scientific circulation for the first time. A separate section of the monograph provides chronologically structured information that reflects the sequence of research work of the Kharkiv Astronomical Observatory employees during the period under study: from astrometric observations of stars and seismic research to spectrohelioscopic and spectroheliographic observations of the Sun and the initiation of the Kharkiv school of planetary science. It is assumed that the materials of the monograph will be used in research work devoted to the study of the process of institutionalization of astronomical research in Kharkiv at the end of the 19th century – the first half of the 20th century.
Book chapters on the topic "Precast Building Systems"
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Wu, Gang, De-Cheng Feng, and Chun-Lin Wang. "Modularized Suspended Building Structure." In Novel Precast Concrete Structure Systems. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6821-1_8.
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Mehdizadeh, Samim, and Oliver Tessmann. "Animate Concrete: Materialization of Concrete Element Kinetic Assemblies." In Computational Design and Robotic Fabrication. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8405-3_33.
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AbstractAnimate Concrete informs building elements for motion and future reuse. This paper gives technical insight into strategies to reconfigure building systems with lightweight and movable concrete elements. Animate Concrete asks, what if architecture becomes an ever-changing system built with lightweight but heavy-looking elements that can move, assemble and disassemble through a gentle human touch? This vision allows for a versatile space, adaptation, and reconfigurability. Animate Concrete furthermore seeks to provide novel strategies to minimize material consumption for building elements by rotoforming thereby significantly reducing the weight of robotically precast concrete elements.
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Frosch, Robert J., James O. Jirsa, and Michael E. Kreger. "Experimental Response of a Precast Infill Wall System." In Seismic Assessment and Rehabilitation of Existing Buildings. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0021-5_18.
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Kim, Ji-Hun, Won-Kee Hong, Seon-Chee Park, Hyo-Jin Ko, and Jeong Tai Kim. "Environmentally-Friendly Apartment Buildings Using a Sustainable Hybrid Precast Composite System." In Sustainability in Energy and Buildings. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36645-1_96.
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Witzany, J., R. Zigler, and A. Polák. "Precast reinforced concrete demountable system of multi-storey buildings." In Insights and Innovations in Structural Engineering, Mechanics and Computation. CRC Press, 2016. http://dx.doi.org/10.1201/9781315641645-213.
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Wang, Junxuan, Kian Hau Kong, and J. Y. Richard Liew. "Lightweight and Advance Precast Concrete System for Modular Building Construction." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-7331-4_45.
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Halding, P. S., and K. Negendahl. "The potential for direct reuse of precast concrete slabs in buildings with “wet” joints." In Life-Cycle of Structures and Infrastructure Systems. CRC Press, 2023. http://dx.doi.org/10.1201/9781003323020-385.
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Yang, Chen, and Tong Yao. "Study on Carbon Emission Data of Urban Buildings." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-8401-1_10.
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AbstractIn pursuit of global carbon peak and neutrality, precise carbon emission measurement using advanced management tools and technologies is crucial for effective urban carbon reduction and sustainable growth. We propose classifying building emissions into three distinct stages—construction, operation, and maintenance—by utilizing mathematical methods and Building Information Modeling (BIM) for separate calculation. Moreover, we recommend implementing an annual carbon emission management system tailored to each building.
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Vielba-Cuerpo, Carmen, Francisco Hernández-Olivares, and Benito Lauret-Aguirregabiria. "A New Cladding System Using Low Strength Sandstone in Precast Concrete Panels for Building Façades." In Proceedings of the 10th International Congress for Applied Mineralogy (ICAM). Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27682-8_90.
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Eskandari, Roghieh, and Ali Motamedi. "Visibility Enhancement of Crane Operators Using BIM-Based Diminished Reality." In CONVR 2023 - Proceedings of the 23rd International Conference on Construction Applications of Virtual Reality. Firenze University Press, 2023. http://dx.doi.org/10.36253/979-12-215-0289-3.16.
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The limited visibility experienced by crane operators in construction sites poses significant challenges, leading to reduced performance and safety concerns. Obstructive elements, such as existing buildings, construction elements, or vehicles, can block the crane operator's field of view, hindering their ability to execute lifting operations with precision and confidence. To address this issue, this study presents a novel approach using Building Information Modelling (BIM)-based diminished reality (DR) to enhance visibility by dynamically removing obstructive objects from the crane operator's perspective in real-time. The research employs a marker-based registration system that effectively aligns BIM data with the physical environment, ensuring realistic and precise DR visualization. Additionally, a semi-automatic selection method that involves minimal intervention from the user is employed to select desired objects. To generate the background, the system utilizes real-time observation data from occluded areas. A validation through a case study demonstrates the practical applicability of the developed system in real-life construction scenarios
Conference papers on the topic "Precast Building Systems"
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Karnitis, Girts, Stanislavs Gendelis, Maris Pukis, Ugis Sarma, Edgars Diebelis, and Janis Bicevskis. "SIMULATION OF URBAN HEATING SYSTEMS' RETROFITTING PROJECTS: FROM CONCEPT TO INSTRUMENT." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/5.1/s21.76.
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Updated normative documents within the Fit for 55 legislative package envisage increased dynamics in achieving European Green Deal goals, which are obligatory for EU countries. This directly applies to over 65 million energy-inefficient buildings in EU27 urban areas as well as heat supply systems. However, unified funding for long-term renovation programs is not planned. To respond quickly to diverse financing options with distinct conditions and target variables, a costly and time-consuming elaboration of detailed renovation projects becomes ineffective. The article outlines the functional algorithm developed for the innovation sandbox, which is intended for the simulation of various renovation/modernization options in the overall urban heating system including heated buildings, district heating network and heat sources. The aim is crafting the application/project that meets the specific conditions to the maximum and provides high performance-price ratio. The algorithm is founded on the previously developed methodological concept. Created sandbox�s algorithm: � encompasses the analysis of all components of the overall heating system; � is applicable to the requirements of relevant projects and available funding options; � offers a flexible pre-design assessment of the benefits to be achieved by the project; � capable to consolidate many individual projects; � provides objective and sufficiently precise results for the initial simulation and evaluation of project variations; � does not necessitate specific knowledge in building physics and economics; � utilizes a limited set of input indicators. Through the sandbox, both central and local governments, as well as building owners, can effectively adapt to evolving funding and/or project tender rules.
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Pfleger, Marc-Patrick, Elisabeth Radl, and Patrick Huber. "Databased prefabrication of parameterized concrete formwork elements with interlocking wood joints." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.1935.
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<p>The construction of concrete structures and their design flexibility is directly related to the use of different formwork elements or the limitations of existing systems. Especially in infrastructure projects and occasionally in building construction, complex geometries such as single or double curved surfaces are realized in concrete or reinforced concrete. This requires the precise fabrication of formwork boxes, which are used where reusable formwork systems lacks adaptability. This paper explores ways to increase the efficiency of custom formwork production through fully automated software processes that generate CNC data from 3D geometries. The formwork elements are fabricated using an interlocking plywood system for structural purposes, meeting high demands for accuracy and stiffness through automatically dimensioned wood-wood joints. The digital as well as the production process is described in detail through selected practical examples.</p>
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McMullin, K., M. Ortiz, S. Yarra, P. Nagar, L. Patel, and T. Ma. "Static Experimental Testing to Define Force-Deformation Relationships of Precast Concrete Cladding Building Façade Systems." In Structures Congress 2014. American Society of Civil Engineers, 2014. http://dx.doi.org/10.1061/9780784413357.165.
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Seren, Karl-Johan. "Expert Systems for the Manufacturing Process in Precast Concrete Building Component Factories and Concrete Construction." In 4th International Symposium on Automation and Robotics in Construction. International Association for Automation and Robotics in Construction (IAARC), 1987. http://dx.doi.org/10.22260/isarc1987/0049.
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Hajjar, Jerome F., Lizhong Wang, and Mark D. Webster. "Design for Deconstruction for Sustainable Composite Steel-Concrete Floor Systems." In 12th international conference on ‘Advances in Steel-Concrete Composite Structures’ - ASCCS 2018. Universitat Politècnica València, 2018. http://dx.doi.org/10.4995/asccs2018.2018.7060.
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Conventional steel-concrete composite floor systems utilizing steel headed stud anchors and metal decks are cost-effective and widely used solutions for non-residential multi-story buildings, due in part to their enhanced strength and stiffness relative to non-composite systems. Because these systems use steel headed stud anchors welded onto steel flanges and encased in cast-in-place concrete slabs to achieve composite action, it is not possible to readily deconstruct and reuse the steel beams and concrete slabs. As the building industry is moving towards sustainability, there are clear needs for developing sustainable steel-concrete composite floor systems to facilitate material reuse, minimize consumption of raw materials, and reduce end-of-life building waste. This paper presents the behavior and design strategies for a sustainable steel-concrete composite floor system. In this system, deconstructable clamping connectors are utilized to attach precast concrete planks to steel beams to achieve composite action. The load-slip behavior of the clamping connectors was studied in pushout tests, and the test results showed that the clamping connectors possess similar shear strength to 19 mm diameter shear studs and much greater slip capacity. Four full-scale beam tests were performed to investigate the flexural behavior of the deconstructable composite beams under gravity loading and validate the connector behavior attained from the pushout tests. All the beams behaved in a ductile manner. The flexural strengths of the composite beam specimens closely match the strengths predicted for composite beams by the design provisions of the American Institute of Steel Construction (AISC).
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Goold, Ryan, Tsz Yan Ng, and Daniel Fougere. "Concrete Lattice | Unitized Architecture of Assembly." In 2017 ACSA Annual Conference. ACSA Press, 2017. http://dx.doi.org/10.35483/acsa.amp.105.21.
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Concrete Lattice, a project produced for the graduate thesis studio Concrete Labor(1), seeks to challenge our normative association with this building typology by developing a lattice system of prefabricated units using Glass-Fiber Reinforced Concrete (GFRC). Lattice systems are porous, lightweight, and deployable; terms that are not typically associated with concrete structures. The design of parametric units rather than linear components(typical of lattice systems), highlights issues of assembly in precast building systems using integrated components. While design workflows and CNC fabrication aided in efficiently manufacturing the units, the assembly is post-tensioned during the construction process to limit the amount of scaffolding necessary. Our goal was to explore the development of a complex lattice system using digital technology to explore formal and manufacturing processes.
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Sandamal, N. G. T. M., M. T. R. Jayasinghe, and L. I. N. De Silva. "Cellular pile raft foundations for lightweight multi-storey buildings." In Civil Engineering Research Symposium 2024. Department of Civil Engineering, University of Moratuwa, 2024. http://dx.doi.org/10.31705/cers.2024.40.
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The global demand for housing and urban land scarcity has driven the need for multistorey buildings. The substructure design plays a crucial role in ensuring the stability of these structures, as traditional foundation methods, like piled or piled raft foundations, are essential for distributing the substantial loads. However, the high costs associated with these systems have prompted the e ploration of alternative foundation designs This study’s approach seeks to optimize foundation construction by reducing costs without compromising structural integrity, making it a viable solution for sustainable urban development. This study investigates the feasibility of employing a raft foundation, particularly a weight-compensated cellular raft design for multistorey buildings exceeding 10 floors which typically require costly pile foundations. Unlike traditional piles, Backhoe loaders are proposed for constructing piles filled with Aggregate Base Course (ABC) with cement and inserting reinforced columns for anchoring the cellular raft. The strategy involves settling the building slightly to mobilize the soil capacity, particularly for sandy clay soil conditions. Furthermore, the study explores the potential of lightweight superstructures to significantly reduce construction costs by optimizing structural weight and eliminating the need for pile foundations. Specifically, it explores the utilization of Expanded Polystyrene (EPS) based lightweight panels and precast prestressed concrete beam systems with precast prestressed concrete slabs. Investigating a 10-story reinforced concrete moment resisting frame (MRF) supported by a cellular piled raft foundation, the research employs a direct approach considering soil-structure (SSI) interaction effects. Through construction stage analysis using finite element software (Midas GEN, Midas GTS NX), the study determines optimal gap sizes for the cellular raft and assesses the maximum number of storeys feasible without pile foundations. Overall, this study suggests that on sandy clay soil, constructing taller buildings with a maximum of 14 floors, in addition to the cellular basement, is feasible using lightweight superstructures in conjunction with cellular rafts. Moreover, the research recommends increasing pile spacing beyond the current 5m x 5m grid configuration to fully mobilize soil capacity. Future studies should also investigate the effectiveness of these foundation systems across various soil types, including silty clay, loamy soil, and sandy loam, to further validate the design's applicability in different geological conditions.
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Jovanović, Vladan, and Marko Ignjatović. "Simulation of the energy performance of potential HVAC systems and implementation of renewable energy sources to achieve nZEB on the example of an office building in Nis." In 54th International HVAC&R Congress and Exhibition. SMEITS, 2024. http://dx.doi.org/10.24094/kghk.023.061.
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One of the key approaches to achieving an optimal balance between energy consumption and overall comfort in existing buildings lies in the use of sophisticated simulations for efficient management of HVAC systems. Modeling and simulating the energy performance of buildings represent a highly advanced technique that enables the predic-tion of complex system behaviors based on physical laws and principles. These simulations allow for precise solving of thermal equilibrium equations, taking into account all essential physical characteristics of the building, the com-plexity of the mechanical systems serving it, as well as a wide range of dynamic input variables throughout the entire calendar cycle. Critical factors significantly influencing energy consumption in buildings are region-specific climatic condi-tions, as well as individual user expectations regarding indoor temperature, humidity, and air quality. The methodology of this advanced research is based on the use of the state-of-the-art simulation tool Ener-gyPlus, which enables a detailed analysis of the building's energy performance. This holistic approach enables the enhancement of energy efficiency in existing buildings and optimization of HVAC system operation, resulting in significant energy savings and improved overall user comfort. Furthermore, this study aims to demonstrate the improvement of building systems themselves to achieve nZEB buildings and the utiliza-tion of renewable energy sources. The work is expected to use simulations of the model, along with additional systems, to minimize the net site en-ergy through PV panel-integrated systems compared to the model without such systems. The results obtained from the baseline model already demonstrate low energy requirements, while the use of PV panels is expected to result in even lower consumption. The total energy required to meet the building's energy needs is 41,109.67 kWh, which translates to 36.41 kWh/m² of the total building area. The paper will also demonstrate a reduction in CO2 emissions compared to the model without PV panel-integrated systems.
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Carrion, Juan E., William F. Baker, and Charles Besjak. "Precast Core Wall System for High-Rise Buildings." In IABSE Congress, New York, New York 2019: The Evolving Metropolis. International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.0110.
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<p>The design of high-rise buildings is usually governed by lateral forces (e.g., wind or seismic). One of the most efficient structural systems to resist lateral loads is the core wall system. Traditionally high-rise concrete cores have been constructed using cast-in-place concrete, however precast systems offer an attractive alternative to cast-in-place construction. A precast concrete core wall system has been developed for high-rise buildings and will be presented in this paper. The main components of the system are the core walls, which are composed of multiple precast panels. The panel layout is determined based on the geometry of the tower and the capacity of the transportation and lifting equipment, while the wall thickness, concrete strength, and reinforcement are determined to satisfy strength and serviceability requirements. Several methods for connecting the panels have been developed, including combinations of embedded steel shapes, bolts, welds, and continuous reinforcing bars or post-tensioning. An application of the system to a 296 m (972 feet) tower in New York City is presented in this paper. This application demonstrates that the precast core wall system is an attractive and viable alternative to cast-in-place construction, capable of resisting the large forces associated with high-rise buildings, and with several advantages, including speed of erection, cost, as well as the high quality of precast concrete.</p>
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"Smart Solutions for Sustainable Development: A Case Study of Energy-Efficient Green Building with Intelligent Techniques." In International Conference on Cutting-Edge Developments in Engineering Technology and Science. ICCDETS, 2024. http://dx.doi.org/10.62919/cbnc2381.
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The integration of intelligent technologies in building design is becoming a pivotal strategy for achieving sustainable development goals. This research focuses on the application of such technologies in green buildings to enhance energy efficiency. This study investigates the impact of incorporating advanced intelligent techniques—such as Internet of Things (IoT) sensors, artificial intelligence (AI), and big data analytics—on the energy efficiency of a specifically selected green building. The research adopts a case study approach, examining the implementation and outcomes of intelligent systems in a well-documented green building. Energy consumption data, both pre- and post-implementation, were analyzed to assess the effectiveness of these technologies. Findings indicate that the integration of intelligent technologies significantly reduced the building’s energy consumption while improving operational efficiency. The technologies enabled more precise control and monitoring of energy use, leading to substantial improvements in sustainability metrics.
Reports on the topic "Precast Building Systems"
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Johra, Hicham. Overview of the Typical Domestic Hot Water Production Systems and Energy Sources in the Different Countries of the World. Department of the Built Environment, Aalborg University, 2019. http://dx.doi.org/10.54337/aau332609123.
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The aim of this technical report is to present an overview of the current domestic hot water production systems that are typically in use in the residential buildings of the different countries of the world. One can clearly observe the large potential for the use of renewable energy sources and the energy efficiency improvement of the domestic hot water production systems it in many of those countries. The data of this report originates from various types of publications reporting typical domestic hot water production systems and energy sources in different countries. Nonetheless, this information is rarely established from large national surveys of dwellings. It should therefore be used as an estimate rather than a precise statistical overview. Many countries are not included in the table as it was impossible to find any information about them regarding domestic hot water production.
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Ebeling, Robert, Barry White, John Hite та ін. Load and resistance factors from reliability analysis Probability of Unsatisfactory Performance (PUP) of flood mitigation, batter pile-founded T-Walls given a target reliability index (𝛽). Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47245.
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This technical report documents the research and development (R&D) study in support of the development of a combined Load and Resistance Factor Design (LRFD) methodology that accommodates both geotechnical and structural design limit states for design of the US Army Corps of Engineers (USACE) batter pile-founded, reinforced concrete flood walls. Development of the required reliability and corresponding LRFD procedures has been progressing slowly in the geotechnical topic area as compared to those for structural limit state considerations, and therefore this has been the focus of this first-phase R&D effort. This R&D effort extends reliability procedures developed for other non-USACE structural systems, primarily bridges and buildings, for use in the design of batter pile-founded USACE flood walls. Because the foundation system includes batter piles under flood loading, the design procedure involves frame analysis with significant soil structure interaction. Three example batter pile-founded T-Wall flood structures on three different rivers have been examined considering 10 geotechnical and structural limit states. Numerical procedures have been extended to develop precise multiple limit state Reliability calculations and for complete LRFD analysis of the example batter pile-founded, T-Wall reinforced concrete, flood walls.
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Meißner, Frank, Heike Sonntag, and Anita Morandell-Meißner. Water uptake measurement for thermal renovations – comparison between non-destructive method, the Karsten tube, and automatic laboratory measurements. Department of the Built Environment, 2023. http://dx.doi.org/10.54337/aau541652209.
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The energy-efficient renovation of existing buildings requires precise knowledge of the wall structure. When using interior insulation systems, the driving rain resistance of the façade is also decisive for the function of the entire wall structure. When using interior insulation on exposed brick facades, the verification can often only be done with the help of a hygrothermal simulation. In practice, a non-destructive method, the Karsten tube or various modifications, is used to assess this essential characteristic value quickly. However, the measured values obtained from this method do not agree with the laboratory-measured values determined on a test specimen taken from the laboratory. This article presents measurements on bricks from several refurbishment projects to determine the cause. They were carried out both in the installed state with the in-situ method and subsequently after brick removal on the same materials under laboratory conditions to bring about comparability concerning the material. This article presents the automatic detection of water uptake of porous materials compared to the in-situ measurement with the Karsten tube. It evaluates the measurement results of both measurement methods.
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Comparative Life-Cycle Assessment of Precast Concrete Commercial Buildings Overview/Executive summary. Precast/Prestressed Concrete Institute, 2013. https://doi.org/10.15554/pci.wp-2013-01.
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This study reaffirms findings from balanced life cycle assessments (LCAs), such as the MIT study on commercial buildings, indicating minimal differences in life-cycle environmental impacts among steel, cast-in-place concrete, and precast concrete structural systems. Although portland cement production contributes to concrete’s perceived environmental burden, precast concrete does not exhibit higher life-cycle impacts. Notably, the operational energy phase dominates environmental performance, accounting for over 90% of impacts across categories like global warming potential (GWP) and total primary energy (TPE). Precast concrete envelope systems outperform alternatives in this phase, offering superior energy efficiency. Portland cement, comprising less than 20% of a typical precast panel, remains a key factor in environmental performance. Advancements in cement manufacturing and reduced cement content in precast products could further enhance sustainability. Additionally, LCAs do not optimize for specific materials; thus, performance gains are likely if structures are designed specifically for precast systems, including material and HVAC optimization.
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PCI Standard Design Practice Ref ACI-318-05. Precast/Prestressed Concrete institute, 2020. http://dx.doi.org/10.15554/sdp-318-05.
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PCI Standard Design Practice Ref ACI-318-05 Precast and prestressed concrete structures have provided decades of satisfactory performance. This performance is the result of the practices reported herein, conformance with ACI 318-05, Building Code Requirements for Structural Concrete,1 incorporation of industry-specific research programs, and a plant certification program that provides an industry-wide quality control system beyond those found in onsite construction.
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PCI Standard Design Practice Ref ACI-318-08. Precast/Prestressed Concrete institute, 2020. http://dx.doi.org/10.15554/sdp-318-08.
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PCI Standard Design Practice Ref ACI-318-08 Precast and prestressed concrete structures have provided decades of satisfactory performance. This performance is the result of the practices reported herein, conformance with ACI 318-08 Building Code Requirements for Structural Concrete and Commentary, incorporation of industry specific research programs and a plant certification program that provides an industrywide quality control system beyond that found in on-site construction. Section 1.4 of the ACI 318-08 specifically allows variances when the adequacy of which has been shown by successful use or by analysis or test. Suggested changes to code provisions resulting from experience, analysis or testing can provide a point for discussion with building officials for acceptance of revised provisions within the guidance and scope of Section 1.4 of ACI 318-08.
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PCI Standard Design Practice Ref ACI-318-11. Precast/Prestressed Concrete institute, 2020. http://dx.doi.org/10.15554/sdp-318-11.
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PCI Standard Design Practice Ref ACI-318-11 Precast and prestressed concrete structures have provided decades of satisfactory performance. This performance is the result of the practices reported herein, conformance with ACI 318-11 Building Code Requirements for Structural Concrete and Commentary, incorporation of industry specific research programs and a plant certification program that provides an industrywide quality control system beyond that found in on-site construction. Section 1.4 of the ACI 318-11 specifically allows variances when the adequacy of which has been shown by successful use or by analysis or test. Suggested changes to code provisions resulting from experience, analysis or testing can provide a point for discussion with building officials for acceptance of revised provisions within the guidance and scope of Section 1.4 of ACI 318-11. This list of provisions is based on ACI 318-11, and the numbers refer to sections in that document and are presented in numerical order. For notation used within this document refer to the notation used in Chapter 2 of ACI 318-11. Excerpts from ACI 318-11 are reprinted here with permission by the American Concrete Institute, Farmington Hills, Michigan.
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SIMPLIFIED MODELLING OF NOVEL NON-WELDED JOINTS FOR MODULAR STEEL BUILDINGS. The Hong Kong Institute of Steel Construction, 2021. http://dx.doi.org/10.18057/ijasc.2021.17.4.10.
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Prefabricated modular steel (PFMS) construction is a more efficient and safe method of constructing a high-quality building with less waste material and labour dependency than traditional steel construction. It is indeed critical to have a precise and valuable intermodular joining system that allows for efficient load transfer, safe handling, and optimal use of modular units' strength. Thus, the purpose of this study was to develop joints using tension bolts and solid tenons welded into the gusset plate (GP). These joints ensured rigid and secure connectivity in both horizontal and vertical directions for the modular units. Using the three-dimensional (3D) finite element (FE) analysis software ABAQUS, the study investigated the nonlinear lateral structural performance of the joint and two-storey modular steel building (MSB). The solid element FE models of joints were then simplified by introducing connectors and beam elements to enhance computational efficiency. Numerous parameters indicated that column tenons were important in determining the joint's structural performance. Moreover, with a standard deviation (SD) of 0.025, the developed connectors and beam element models accurately predicted the structural behaviour of the joints. As a result of their simplification, these joints demonstrated effective load distribution, seismic performance, and ductility while reducing computational time, effort, and complexity. The validity of the FE analysis was then determined by comparing the results to the thirteen joint bending tests performed in the reference.