Relevant bibliographies by topics / Construction formwork

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
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Academic literature on the topic 'Construction formwork'

Author: Grafiati
Published: 20 February 2023

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Journal articles on the topic "Construction formwork"

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Dr. M Kranti Kumar and Jaya Surya R. "Evaluation of Different Kinds of Formwork Systems in Indian Construction Industry." International Journal of Engineering and Management Research 12, no. 1 (February 28, 2022): 101–7. http://dx.doi.org/10.31033/ijemr.12.1.12.

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In the construction industry, formwork plays a critical role in the construction of cast in situ reinforced concrete structures. Due to the rapid growth of the Indian economy, population growth, urbanization, and industrialization, the demand for housing and other built structures is increasing. To meet these requirements, quick construction is needed with less project completion time. The conventional system of formwork comprises nearly 50% of the total project completion time. Wastage and labour requirement is also high in conventional formwork systems. So, the use of modern formwork systems like aluminium formwork, tunnel formwork, etc., is increasing in the Indian construction industry. This paper aims to discuss and evaluate the various formwork systems available, and to show their impact on project duration, cost, quality, cycle-time, number of repetitions, labour requirements. Through literature review, data about various formwork systems available all over the world are collected. The current practices in India are known from various stakeholders through a questionnaire survey. Data analysis will be done using the data collected from the literature review and the questionnaire survey. The research will highlight the benefits and comparison of various types of formworks in terms of project duration, cost, quality, cycle-time, number of repetitions, labour requirements. This study concluded that implementing the modern formwork systems will improve the quality, safety, efficiency and minimise the cost and waste in construction. Keywords: Conventional formwork; Modern formwork systems; fast-track construction; Comparison; Indian construction sector.
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Li, Jian Ping, Pin Tan, Jin Huang, and Xiang Jun Wang. "Simulation and Experimental Study of Floating with Engineering Mechanics on Box Girder Steel Interior Formwork Used in the High Speed Railway." Applied Mechanics and Materials 540 (April 2014): 185–88. http://dx.doi.org/10.4028/www.scientific.net/amm.540.185.

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During the construction of high speed railway box girder, the interior formwork’s floating problem is always been a big common quality fault plagued the construction in the process of concrete pouring, this leads to the roof thickness of box girder arising, the harm is great. This paper combined the construction project of Hebang single linear 32 meter interior formwork, according to the actual condition of the construction, proceeding the simulation analysis and experimental study of floating date on box girder interior formwork. Using the solidworks2010 establish the mode of box girder interior formwork, then, import the mode to the workbench14.5 proceeding simulation analysis. The simulation analysis of interior formwork maximal floating date is 10.67 millimeter, while the measured date is 10.63 millimeter, the deviation is 3.2%. The result manifests the feasibility of the simulation analysis of interior formwork floating date, this provide a reference to the structure optimization of the interior formwork used in the high speed railway.
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Brózda, Kinga, and Jacek Selejdak. "Safety of Formworks in the Engineering and General Construction Sector." System Safety: Human - Technical Facility - Environment 1, no. 1 (March 1, 2019): 284–90. http://dx.doi.org/10.2478/czoto-2019-0037.

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AbstractFormwork systems are necessarily used in the implementation of the RC (reinforced concrete) structures. Formworks are required regardless of whether a construction is monolithic or prefabricated and used to form the engineering and general structures or structural elements, such as abutments, supports and decks of the bridges, tanks and retaining walls, but also industrial and accommodation facilities etc. Ensuring the OHS (occupational health and safety) during transport, assembly and disassembly of formworks is a necessary condition for the execution of RC works in a safe and economical way. The paper presents the analysis of the safety requirements for formworks. Furthermore, the general requirements for the execution of the formwork structures were discussed. The most common organizational and technological mistakes and cased of neglects related to the operation of the formwork which lead to infringement of the OHS regulations were also identified.
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Ko, Chien-Ho, and Jiun-De Kuo. "MAKING FORMWORK CONSTRUCTION LEAN." Journal of Civil Engineering and Management 21, no. 4 (March 30, 2015): 444–58. http://dx.doi.org/10.3846/13923730.2014.890655.

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Formwork material and payroll are among the greatest costs in building reinforced concrete structures. Therefore, formwork engineering is a key factor affecting project success. Traditional formwork construction entails non-value-adding activities resulting in waste. The objective of this study is to adapt lean manufacturing techniques to formwork engineering in a bid to reduce waste, specifically by developing a lean formwork construction model. In the model, andon is used to establish an on-site quality control culture, allowing form workers to obtain assistance immediately whenever a problem occurs. In addition, formwork operations are pulled through the kanban system to reduce mould inventory and achieve continuous construction flow. A case study is used to validate the applicability of the proposed model. Results show that the proposed model can effectively reduce waste in the formwork construction flow and increase the value of operations, thus providing a new approach to improving formwork engineering.
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Ahmad, Nursafarina, Zakiah Ahmad, Azerai Ali Rahman, Hanizah Abdul Hamid, and Mohd Azrizal Aziz Fauzi. "Increasing the Capacity of Concrete Column with Integrated Permanent Formwork Using Wood-Wool Cement Board." Applied Mechanics and Materials 325-326 (June 2013): 1305–9. http://dx.doi.org/10.4028/www.scientific.net/amm.325-326.1305.

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Growing construction activities requires increase in construction materials. The conventional method of constructions results in a rise in construction waste. Formwork as a main factor to generate construction waste has been the topic of investigation. The permanent formwork has been introduced with the aim to: promote the construction technology process that put quality, safety and environment issues into account, reduce the cost of workers and reduce the overall time of construction project. At present the permanent formwork available in the market are made from steel, and plastic and the cost is still high. Therefore this study is looking at the potential of commercial wood-wool cement board (WWCB) as permanent formwork. A series of concrete columns were constructed with and without integrated WWCB with different configurations of WWCB as permanent formwork. These columns were subjected to axial load and the compressive strength and failure modes were recorded. The results show that the present of permanent formwork from WWCB improves the compressive strength of the column. With the permanent formwork, the size of concrete column can be reduced and able to support the same load as column without permanent formwork. Therefore this construction method can reduce the overall cost of construction.
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Abdunnafi, Ginanjar, M. Agung Wibowo, and Bambang Purwanggono. "KAJIAN PERBANDINGAN PENGARUH PENGGUNAAN BEKISTING ALUMINIUM DAN PERTH CONSTRUCTION HIRE (PCH) DALAM MEWUJUDKAN LEAN CONSTRUCTION." Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil 26, no. 2 (December 1, 2021): 156. http://dx.doi.org/10.32497/wahanats.v26i2.3130.

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Technological developments have led to innovations in construction materials science, one of which is formwork materials. There are several important aspects in formwork innovation, namely cost, speed, quality, waste, and health safety environtment (HSE), but they have not fully had a positive impact on construction project development. However, it has not fully had a positive impact on construction projects. In addition, what aluminum formwork manufacturers offer so far may not necessarily suit the needs of customers. The purpose of this study is to analyze the comparison in terms of cost, time, waste, and HSE between projects using aluminum formwork and the same project simulated using Formwork Perth Construction Hire (PCH). In this study: (1) simulation on the project if the project uses PCH formwork (2) comparative analysis of products in terms of time, cost, quality, waste, HSE on real projects using aluminum formwork with projects that have been simulated using PCH formwork. The effect of using aluminum formwork when compared to a simulation project using PCH formwork: (1) in terms of the time it can provide 25.92% savings on the total duration of the simulation results project, (2) in terms of costs, it can provide a total cost savings of IDR 895,756,004,00 (3) in terms of quality, the use of aluminum formwork is stronger, durable quality, and the results of the concrete molding are tidier than using PCH formwork (4) in terms of waste, projects that use aluminum formwork produce less waste than using PCH formwork. PCH formwork. (5) in terms of HSE, aluminum formwork is safer, more environmentally friendly because it has minimal waste, and is safe for workers
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Dadaso Desai,, Aditya, Vishnu Dnyaneshwar Biradar, and Dr Prof D. B. Desai. "SLIP FORMWORK." International Journal of Engineering Applied Sciences and Technology 7, no. 2 (June 1, 2022): 158–60. http://dx.doi.org/10.33564/ijeast.2022.v07i02.022.

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Slip forming is one of the most effective processes for constructing unconventional structures such as cooling towers, chimneys, and silos, as well as roadway and bridge construction. Formwork made using slips techniques used on a construction with a height of more than 16 meters and its unique design. Techniques for erection that are both quick and cost-effective. Slip forming takes into account. The fastest erection is 7.2 meters per day. procedure. They have a variety of components, and when they're finished, they're ready to use. It was elevated up and further by the hydraulic jack of curtain height concreting. It's possible to undertake some concreting. As a result, these methods are quick and efficient. Savings; cost-effective; and fewer workers are required.
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Efendi, Mohammad Arif Bahtiar, and Rendi Gusta Wibowo. "Pertimbangan Biaya dalam Pemilihan Bekisting." JURNAL PILAR TEKNOLOGI Jurnal Ilmiah Ilmu Ilmu Teknik 6, no. 2 (January 6, 2022): 69–75. http://dx.doi.org/10.33319/piltek.v6i2.101.

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Materials in the construction world is progressing quite rapidly. Likewise formwork as a project is also experiencing quite rapid progress which refers to the value of the results of a project. In a project the determination of the type of system and formwork method will affect the cost and time in progress, the selection of the formwork method which is not appropriate will have a loss in the future. The analysis conducted is comparing formwork of semi-conventional methods and system (PERI) in column, beam and plate formworks of the INKA Graha Building Construction Project, Madiun. The objective to be achieved in this paper is to find out the type of formwork that is efficient to be used in a formwork work both for beam and plate columns, in terms of cost comparisons and finding a draw point between the two methods. After analyzing it is known that the use of semi-conventional initiating systems is more efficient with a value of Rp. 2,349,756,391, - and for the PERI system costs Rp. 3,050,649,782, - .. The draw point of this system is in the volume of 31,500 m2 which means that in this volume the use of semi-conventional systems and PERI systems does not differ in terms of cost.
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Liu, Hai Qing, and Jian Jun Zhao. "Application of High-Formwork Technology in Wusong Road Passenger Station." Advanced Materials Research 663 (February 2013): 92–96. http://dx.doi.org/10.4028/www.scientific.net/amr.663.92.

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Combining with the construction of Wusong Road Passenger Station, the paper explores the calculation method and construction technology of high-formwork support system, proposes the construction measure requirements of formwork, introduces the technical process, accumulates the experience of high-formwork design and construction, and popularizes the application of high-formwork technology in projects, which decreases the security accidents of high formwork and provides reference for the construction of similar projects in future.
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Ospitia, Nicolas, Rami Jaramani, Olivier Remy, and Dimitrios G. Aggelis. "Determination of Concrete Formwork Removal Time Based on Ultrasound Reflection." Applied Sciences 12, no. 3 (January 24, 2022): 1221. http://dx.doi.org/10.3390/app12031221.

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Concrete is vastly used in construction due to its high compressive strength, and its ease of shaping. Formworks are used to render the desired shape to the material during its change from a liquid to a solid state, until the concrete develops the required strength. Removing the formwork early can cause excessive deformations or even failure; however, postponing removal also has a delaying effect in construction with economic consequences. In practice, the removal of the formworks is based on the development of the compressive strength vs. the self-weight and temporary loads related to the construction. This study aims to monitor the hardening of concrete columns by means of the reflection of ultrasonic waves. As concrete hardens, its mechanical impedance increases influencing the reflection that can be received by one-sided non-invasive measurements. By suitably selecting the stiffness of the ultrasonic buffer material, the moment that the concrete obtains a specific stiffness can be safely determined for the first time. Results demonstrate sensitivity of the technique on real scale formworks, as it can pinpoint the moment in which the formwork can be removed, while numerical simulations help in the understanding of the complicated wave field and validate the methodology.
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Dissertations / Theses on the topic "Construction formwork"

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Alamin, Basher. "Analysis of construction loads on concrete formwork." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0006/MQ43645.pdf.

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Ikäheimonen, Jukka. "Construction loads on shores and stability of horizontal formwork /." Stockholm, 1997. http://www.lib.kth.se/abs98/ikah0206.pdf.

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Kajewski, Stephen L. "Post-tensioning and its effect on multi-level formwork load distribution." Thesis, Queensland University of Technology, 1998. https://eprints.qut.edu.au/36033/8/36033_Digitised_Thesis.pdf.

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Multi-level concrete buildings requrre substantial temporary formwork structures to support the slabs during construction. The primary function of this formwork is to safely disperse the applied loads so that the slab being constructed, or the portion of the permanent structure already constructed, is not overloaded. Multi-level formwork is a procedure in which a limited number of formwork and shoring sets are cycled up the building as construction progresses. In this process, each new slab is supported by a number of lower level slabs. The new slab load is, essentially, distributed to these supporting slabs in direct proportion to their relative stiffness. When a slab is post-tensioned using draped tendons, slab lift occurs as a portion of the slab self-weight is balanced. The formwork and shores supporting that slab are unloaded by an amount equivalent to the load balanced by the post-tensioning. This produces a load distribution inherently different from that of a conventionally reinforced slab. Through , theoretical modelling and extensive on-site shore load measurement, this research examines the effects of post-tensioning on multilevel formwork load distribution. The research demonstrates that the load distribution process for post-tensioned slabs allows for improvements to current construction practice. These enhancements include a shortening of the construction period; an improvement in the safety of multi-level form work operations; and a reduction in the quantity of form work materials required for a project. These enhancements are achieved through the general improvement in safety offered by post-tensioning during the various formwork operations. The research demonstrates that there is generally a significant improvement in the factors of safety over those for conventionally reinforced slabs. This improvement in the factor of safety occurs at all stages of the multi-level formwork operation. The general improvement in the factors of safety with post-tensioned slabs allows for a shortening of the slab construction cycle time. Further, the low level of load redistribution that occurs during the stripping operations makes post-tensioned slabs ideally suited to reshoring procedures. Provided the overall number of interconnected levels remains unaltered, it is possible to increase the number of reshored levels while reducing the number of undisturbed shoring levels without altering the factors of safety, thereby, reducing the overall quantity of formwork and shoring materials.
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Amiri, Helia. "Building information modeling for construction applications : formwork installation and quantity takeoff." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/43194.

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Recent advancements in Building Information Modeling (BIM) hold great promise for addressing the challenges of the construction industry by allowing project teams to ‘test out’ a design prior to construction. The projects that have successfully implemented BIM demonstrate numerous benefits, including increased design quality, improved field productivity, cost predictability, less rework, and reduced construction cost and duration. However, much of the research to date has focused more on the preconstruction phase with less research on uses for the construction phase, The goal of this research was to evaluate specific uses of BIM in the construction phase of the project. I investigated two construction applications of BIM: (1) BIM for developing lift drawings to support formwork construction on the BC Hydro Substation project, and (2) BIM for quantity takeoff to support life-cycle assessment (LCA) and construction cost estimating on the Pharmaceutical Sciences project. The BC Hydro project provided an opportunity to examine the use of BIM for the field crew. I developed 3D coordinated lift drawings that conveyed the necessary information for forming the components accurately and clearly. I believe that creating the lift drawings increased the crew’s productivity by providing the necessary information for building a component, resolving conflicts prior to construction, and reducing mistakes. I evaluated the use of BIM for quantity takeoff using the Pharmaceutical Sciences project. I evaluated two BIM-based and one 2D-based quantity takeoff software, and based on several parameters of importance to cost and sustainability consultants. I found that calculating quantities from a BIM model is faster and more accurate as long as the model is created correctly and accurately to suit the needs of the users. This thesis provides evidence for the benefits of BIM for construction uses at different stages in the project. The BC Hydro case study provides significant detail on how a BIM can be utilized by construction field personnel. The Pharmaceutical Sciences project demonstrates the benefits and challenges of utilizing a BIM for quantity takeoff. More case studies are needed to demonstrate the benefits of BIM for different applications in the project delivery process to enable more widespread BIM adoption.
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Kim, Jinlee. "Evaluation of construction formwork practices and safety on projects in South Korea." [Gainesville, Fla.] : University of Florida, 2002. http://purl.fcla.edu/fcla/etd/UFE1001157.

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Gai, Xian. "Fibre reinforced polymer (FRP) stay-in-place (SIP) participating formwork for new construction." Thesis, University of Bath, 2012. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.550617.

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The concept of stay-in-place (SIP) structural formwork has the potential to simplify and accelerate the construction process to a great extent. Fibre-reinforced polymer (FRP) SIP structural formwork offers further potential benefits over existing formwork systems in terms of ease and speed of construction, improved site safety and reduced long-term maintenance in corrosive environments. However, it is not without its limitations, including primarily the possibility of a lack of ductility, which is a key concern regarding the use of FRP structural formwork in practice. This thesis presents the findings of an experimental and analytical investigation into a novel FRP SIP structural formwork system for a concrete slab with a particular emphasis on its ability to achieve a ductile behaviour. The proposed composite system consists of a moulded glass fibre-reinforced polymer (GFRP) grating adhesively bonded to square pultruded GFRP box sections. The grating is subsequently filled with concrete to form a concrete-FRP composite floor slab. Holes cut into the top flange of the box sections allow concrete studs to form at the grating/box-section interface. During casting, GFRP dowels are inserted into the holes to further mechanically connect the grating and box sections. An initial experimental investigation into using GFRP grating as confinement for concrete showed that a significant increase in ultimate strength and strain capacity could be achieved compared to unconfined concrete. This enhanced strain capacity in compression allows greater use of the FRP capacity in tension when used in a floor slab system. Further experimental investigation into developing ductility at the grating/box-section interface showed that the proposed shear connection exhibited elastic-‘plastic’ behaviour. This indicated the feasibility of achieving ductility through progressive and controlled longitudinal shear failure. Following these component tests on the concrete-filled grating and the shear connectors, a total of six (300 x 150 x 3000) mm slab specimens were designed and tested under five-point bending. It was found that the behaviour of all specimens was ductile in nature, demonstrating that the proposed progressive longitudinal shear failure was effective. A three-stage analytical model was developed to predict the load at which the onset of longitudinal shear failure occurred, the stiffness achieved during the post elastic behaviour and, finally, the deflection at which ultimate failure occurred. Close agreement was found between experimental results and the theory.
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Drucker, Allison Lynch. "A Shapely Resistance: A Study in Construction for a Kindergarten." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/34988.

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This thesis deals with the relationship between form and strength in architecture. The proposed building is a Kindergarten which unites issues of shape, physics, and habitat. The roof is vaulted and the walls are curved for lateral resistance and in order to make folds scaled to a child. These physical moves work towards the theme of the Kindergarten: a place for the transition between home and school.
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Halaf, Evan. "FORMSÄTTNING AV HÖGA PLATSGJUTNA BETONGKOSTRUKTIONER : Undersökning av diverse klättersystem samt alternativa lösningar för silo-projektet Gråbergsutfrakt i Kiruna." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-49300.

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Today construction industry is building higher and more complicated constructions than ever thanks to the advancements in materials, technical knowledge and methodologies. One important material is concrete, which has been used to create impressive architectural marvels. This dissertation aims to examine the differences between climbing and slip formwork systems for tall concrete structures that require several pouring steps in height. The main differences noted between both systems are formwork configuration, assembly and cycling of the formwork and climbing elements, price and quantity of material, labor required, the quality of the finished structure and safety during construction. A case study was investigated with the help of formwork supplier PERI Sverige AB and nordic contractor PEAB AB regarding a 20,5 meter high reinforced concrete silo located in a mining complex in Kiruna, Sweden. Through a review of the existing literature in the subject, interviews with experts in the topic and the outcome from the project case study, the results shows that while the SCS climbing system from PERI Sverige AB required more working days compared to a slip formwork system, it was chosen as a more appropriate solution for this project in combination with the crane at the jobsite, due to the amount of labor required, safety and overall cost of it. In conclusion, the selection of the SCS climbing system as formwork system proved to be the most adequate solution for the case study when critical aspects such as assembly and cycling of formwork, price and safety were evaluated.
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Berglin, Alexander. "Short-term deformations in clay under a formwork during the construction of a bridge : A design study." Thesis, KTH, Jord- och bergmekanik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-212060.

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During the casting of a concrete bridge deck, the temporary formwork is causing the underlying ground to deform if a shallow foundation solution is used. There are often demands on the maximum deformation of the superstructure when designing the foundation for the formwork.  To keep the deformations within the desired limits, several ground improvement methods like deep mixing columns or deep foundation methods like piling can be used. Permanent ground improvement methods are however expensive, and far from always needed. To reduce the need for unnecessary ground improvements, it is crucial to calculate the predicted deformations accurately during the design phase. The purpose of this thesis was to investigate how short-term deformations in clay under a formwork during bridge construction should be calculated more generally in future projects. Three different calculation models have here been used to calculate the ground deformations caused by the temporary formwork. A simple analytical calculation and two numerical calculations based on the Mohr Coulomb and Hardening Soil-Small constitutive models. The three calculation models were chosen based on their complexity. The analytical calculation model was the most idealised and the Hardening Soil-Small to be the most complex and most realistic model. Results show that the numerical calculation model Mohr Coulomb and the analytical calculation model gives the best results compared to the measured deformation. One of the most probable reasons for the result is that both of the models require a few input parameters that can easily be determined by well-known methods, such as triaxial-, routine- and CRS-tests. The more advanced Hardening soil small model requires many parameters to fully describe the behaviour of soil. Many of the parameters are hard to determine or seldom measured. Due to the larger uncertainties in the parameter selection compared with the other two models, the calculated deformation also contains larger uncertainties.
Vid gjutning av betongbrodäck kommer den underliggande marken att deformeras av den temporära formställningen, som tar upp lasterna medan betongen härdar. Det finns oftast krav på hur stora markdeformationerna maximalt får vara. För att hålla deformationerna inom gränserna kan diverse markförstärkningsmetoder, så som kalkcementpelare eller pålar, användas. Permanenta markförstärkningar är oftast väldigt dyra och inte alltid nödvändiga. Ett alternativ till att använda dyra markförstärkningar skulle kunna vara att beräkna den förutspådda deformationen med stor exakthet i projekteringsstadiet. Syftet med det här arbetet var att undersöka hur korttidsstätningar i lera vid en bronybyggnation ska beräknas mer generellt i framtida projekt.  I detta arbete har tre beräkningsmodeller använts för att beräkna markdeformationerna från den temporära formställningen. En enklare analytisk modell samt två numeriska beräkningsmodeller som baseras på Mohr Coulomb och Hardening Soil Small teorierna. De tre beräkningsmodellerna valdes utifrån deras komplexitet. Den analytiska beräkningen ansågs vara den mest förenklade modellen medan Hardening Soil-Small var den mest komplexa och realistiska modellen.   Resultatet visar att trots sin enkelhet så ger den numeriska beräkningsmodellen Mohr Coulomb och den analytiska beräkningen bäst resultat jämfört med de uppmätta deformationerna. En möjlig anledning till det goda resultatet är att modellerna endast kräver ett fåtal ingångsparametrar som kan bestämmas med hjälp av välkända fält- och laboratoriemetoder så som triaxialförsök, rutinlaboratorieförsök och CRS-försök. Den mer komplexa modellen Hardening Soil Small kräver flera ingångsparametrar för att kunna modellera jordens beteende. Många av parametrarna är svåra att bestämma då mätdata oftast saknas. Osäkerheterna i valet av ingångsparametrar för den mer komplexa hardening soil small modellen är större än de två andra studerade modellerna, vilekt även ger upphov till större osäkerheter i dem beräknade deformationerna.
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Lee, Sang Hoon. "Study of construction methodology and structural behaviour of fabric-formed form-efficient reinforced concrete beam." Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/5935.

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The nature of this research is in advancing conventional structures and their methods of construction by exploring new technology. The formwork construction of the modern concrete structure involves the use of rigid materials such as steel and timber. This type of formwork often produces structures of forms with limited flexibility which would also hinder the even distribution of the induced stresses. To construct concrete structures with more organic forms; ones that responds to a more natural flow of the induced stresses, it is thought to be more logical to use flexible mould such as the fabric formwork. In such form-active shape the materials’ utilization can be maximized and the degree of material waste can be reduced. For example, when the form responds to the externally applied loads in the way that the internally incurred stresses at any point of the body closely match the capacity of the material, then the form is material-efficient and said to be in its optimal form. The use of fabric formwork, due to its permeability can also improve the quality of concrete by eliminating any air holes on the surface, and also there are reports showing the increase in concrete’s compression strength due to the reduction in water-cement ratio when cast in a fabric mould. This research concentrates on finding such material-efficient form (thus more sustainable) for reinforced concrete beam of improved material quality, through the development of the more efficient construction system of flexible fabric formwork. For this research 11 different types of beams have been built and tested in total, and their construction methods are illustrated and discussed also (Chapter 7 and Chapter 4 respectively). The designs of the beams are developed through consecutive experiment, analysis, evaluation, and modification process (Chapter 6). For the structural analysis of the beams, the most widely accepted analysis methods are reviewed and adapted (Chapter 8). Based on the evaluations of the analytical results the following variables of the beams are modified through the development of the beam designs: The effect of Compression Steel Mesh in Flange Stress Distribution Around Anchorage; Vertical and Horizontal Web Geometry Varying Depth of Flange Steel Content Also it is a part of the current research’s aim to look at the possible application of the current design methods for the design of the fabric formed beams that are discussed in this research. Thus the experimental results are compared with the results which are calculated from the standard design methods suggested by the British Standard Code of Practice (BS8110) (Chapter 9). Computational finite element (FE) analysis is carried out where more intensive analysis is required (Chapter 10). The results of the FE analysis are also compared with the theoretical and experimental results for the verification purpose. The material efficiency of the beam in its final form is assessed through the embodied energy analysis, which compares the total embodied energy consumed through the construction of the beam with a virtual beam that is designed in accordance with the BS8110 (Chapter 11). The analysis indicates that the total embodied energy of the fabric formed beam is about 20~40% less in comparison with the beam designed in accordance with the BS8110. This thesis has the purpose to illustrate and provide the practical information on the design and the construction process of the fabric formed beams, which can be used as a reference to the future research and construction.
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Books on the topic "Construction formwork"

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Koel, Leonard. Concrete formwork. 2nd ed. Homewood, Ill: American Technical Publishers, 1997.

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Koel, Leonard. Concrete formwork. Homewood, Ill: American Technical Publishers, 1988.

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Concrete formwork. Orland Park, Illinois: American Technical Publishers, 2011.

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Hurd, M. K. Formwork for concrete. 6th ed. Detroit: American Concrete Institute, 1995.

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Hurd, M. K. Formwork for concrete. 5th ed. Detroit (P.O. Box 19150, Detroit 48219): American Concrete Institute, 1989.

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ACI Committee 347--Formwork for Concrete., ed. Formwork for concrete. 7th ed. Farmington Hills, Mich: American Concrete Institute, 2005.

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Hurd, M. K. Formwork for concrete. 5th ed. Detroit: American Concrete Institute, 1989.

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D, Oberlender Garold, ed. Formwork for concrete structures. 4th ed. New York: McGraw-Hill, 2011.

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Peurifoy, R. L. Formwork for concrete structures. 3rd ed. New York: McGraw-Hill, 1996.

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D, Oberlender G., ed. Formwork for concrete structures. 3rd ed. New York: McGraw-Hill, 1996.

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Book chapters on the topic "Construction formwork"

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López-Mozo, A., E. Rabasa-Díaz, J. Calvo-López, and R. Marín-Sánchez. "Form with no formwork (vault construction with reduced formwork)." In History of Construction Cultures, 797. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003173359-104.

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Setareh, Mehdi, and Robert Darvas. "Formwork for Monolithic Concrete Construction." In Concrete Structures, 517–65. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-24115-9_8.

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Kumar, B. Bala Murali, Yun Chung Hsueh, Zhuoyang Xin, and Dan Luo. "Process and Evaluation of Automated Robotic Fabrication System for In-Situ Structure Confinement." In Proceedings of the 2021 DigitalFUTURES, 368–79. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5983-6_34.

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AbstractThe additive manufacturing process is gaining momentum in the construction industry with the rapid progression of large-scale 3D printed technologies. An established method of increasing the structural performance of concrete is by wrapping it with Fibre Reinforced Polymer (FRP). This paper proposes a novel additive process to fabricate a FRP formwork by dynamic layer winding of the FRP fabric with epoxy resin paired with an industrial scale robotic arm. A range of prototypes were fabricated to explore and study the fabrication parameters. Based on the systemic exploration, the limitations, the scope, and the feasibility of the proposed additive manufacturing method is studied for large scale customisable structural formworks.
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Çavdar, Meltem. "Who built the timber formwork for fair-faced reinforced concrete?" In History of Construction Cultures, 703–10. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003173434-196.

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Almagro, A. "On the origin of certain vaults without formwork: Iranian timbrel vaults." In History of Construction Cultures, 134–40. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003173359-18.

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Hillson, J., A. Buchanan, and N. Webb. "Investigating forms and formwork in the nave aisles at Tewkesbury Abbey." In History of Construction Cultures, 32–38. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003173434-108.

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Murphy, E., T. Michiels, and D. Trelstad. "Forging the link among shape, formwork, and mortar assemblies in Guastavino vaulting." In History of Construction Cultures, 149–54. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003173359-20.

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Voigts, C. "Vaults, centring, and formwork of the Late Gothic period in Southern Germany." In History of Construction Cultures, 78–83. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003173434-114.

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Yan, Yatuan, Chen Chen, Yufei Xu, Shoufu Li, Teng Wang, and Di Ding. "Application Analysis of Several Basement Exterior Wall Construction Schemes in Compacted Pile Foundation Treatment Engineering." In Lecture Notes in Civil Engineering, 338–46. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1260-3_31.

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AbstractCollapsible loess exists in a large area in Northwestern China. When collapsible loess exists in the ground, it is usually necessary to treat it to eliminate the collapsibility before placing the building foundation. When compacting piles are used to treat the collapsible loess foundation, there are three different construction schemes for the construction of the basement exterior wall, which are the conventional excavation scheme, the outer frame edge excavation scheme, and the unilateral support form excavation scheme. Through the detailed description of the three construction schemes, and the comparative analysis from the aspects of construction difficulty, economy, construction period, etc. It can be concluded that the conventional excavation scheme has the highest cost, the highest construction efficiency, the longest construction period, and other aspects. The frame edge excavation scheme has the lowest construction efficiency, and the unilateral formwork excavation scheme has the lowest cost and the shortest construction period.
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Hayashi, S., T. Gondo, and H. Chiba. "Development and rationalization of formwork for curved concrete shells in the Japanese construction industry in the 1950s." In History of Construction Cultures, 779–85. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003173359-102.

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Conference papers on the topic "Construction formwork"

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Ko, Chien-Ho, and Jiun-De Kuo. "Lean Formwork." In 26th Annual Conference of the International Group for Lean Construction. International Group for Lean Construction, 2018. http://dx.doi.org/10.24928/2018/0211.

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Barnes, J. Michael, and David W. Johnston. "Fresh Concrete Lateral Pressure On Formwork." In Construction Research Congress 2003. Reston, VA: American Society of Civil Engineers, 2003. http://dx.doi.org/10.1061/40671(2003)33.

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Jin, Ziyu, and John Gambatese. "Musculoskeletal Disorders in Concrete Formwork Construction." In Construction Research Congress 2022. Reston, VA: American Society of Civil Engineers, 2022. http://dx.doi.org/10.1061/9780784483985.031.

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Martinez, Eder, Iris Tommelein, and Ariana Alvear. "Formwork System Selection Using Choosing by Advantages." In Construction Research Congress 2016. Reston, VA: American Society of Civil Engineers, 2016. http://dx.doi.org/10.1061/9780784479827.170.

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SAGAR, SHWETA, and VIRENDRA KUMAR PAUL. "AN INVESTIGATION OF DIFFERENT FORMWORK SYSTEM FOR HIGH RISE BUILDING CONSTRUCTION AND FOR DECISION SUPPORT SYSTEM." In 13th International Research Conference - FARU 2020. Faculty of Architecture Research Unit (FARU), University of Moratuwa, 2020. http://dx.doi.org/10.31705/faru.2020.6.

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The most important aspect of any successful structural construction is the formwork system. Formwork itself defines as the temporary structure into which the concrete placed to obtain its desired shape and gains its weight to withstand against various loading conditions. This paper focuses on the two parts 1. Identified different formwork systems using in Indian construction industry for high-rise building construction and 2. Explanations of the decision support system for formwork system so that a decision-maker decides or makes the right choice for the selection of formwork system. This study employed a literature review approach (journal paper, research paper, technical articles & notes, and white paper). The methodology divided into two parts; firstly, the identification of the formwork systems used in the construction industry and secondly, to study a brief about decision support system and for formwork system by which the ease to make a decision support frame for the formwork system selection. This paper reflects the different formwork system typology used in the construction industry for high-rise buildings. The outcome of this paper helps to establish the baseline to develop decision support for the formwork system selection.
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Johnston, David W. "Field Measurement of Concrete Lateral Pressure in Formwork." In Construction Research Congress 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41109(373)134.

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Miller-Johnson, Russ. "Fabric Formwork — An Alternative Concrete Construction System." In Structures Congress 2009. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/41031(341)273.

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"Formwork Construction Based on Finger Joint Structure." In International Conference on Urban Planning, Transport and Construction Engineering. Universal Researchers, 2016. http://dx.doi.org/10.17758/ur.u0116317.

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Naboni, Roberto, and Giulio Paparella. "Circular Concrete Construction Through Additive FDM Formwork." In CAADRIA 2020: RE:Anthropocene. CAADRIA, 2020. http://dx.doi.org/10.52842/conf.caadria.2020.1.233.

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Naboni, Roberto, and Giulio Paparella. "Circular Concrete Construction Through Additive FDM Formwork." In CAADRIA 2020: RE:Anthropocene. CAADRIA, 2020. http://dx.doi.org/10.52842/conf.caadria.2020.1.233.

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Reports on the topic "Construction formwork"

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Nema, Arpit, and Jose Restrep. Low Seismic Damage Columns for Accelerated Bridge Construction. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, December 2020. http://dx.doi.org/10.55461/zisp3722.

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This report describes the design, construction, and shaking table response and computation simulation of a Low Seismic-Damage Bridge Bent built using Accelerated Bridge Construction methods. The proposed bent combines precast post-tensioned columns with precast foundation and bent cap to simplify off- and on-site construction burdens and minimize earthquake-induced damage and associated repair costs. Each column consists of reinforced concrete cast inside a cylindrical steel shell, which acts as the formwork, and the confining and shear reinforcement. The column steel shell is engineered to facilitate the formation of a rocking interface for concentrating the deformation demands in the columns, thereby reducing earthquake-induced damage. The precast foundation and bent cap have corrugated-metal-duct lined sockets, where the columns will be placed and grouted on-site to form the column–beam joints. Large inelastic deformation demands in the structure are concentrated at the column–beam interfaces, which are designed to accommodate these demands with minimal structural damage. Longitudinal post-tensioned high-strength steel threaded bars, designed to respond elastically, ensure re-centering behavior. Internal mild steel reinforcing bars, debonded from the concrete at the interfaces, provide energy dissipation and impact mitigation.
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Two construction workers fatally crushed when cement formwork collapsed. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, September 2017. http://dx.doi.org/10.26616/nioshsface13ny080.

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