Academic literature on the topic 'Dual Frame wall system'
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Journal articles on the topic "Dual Frame wall system"
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Wibowo, Leonardus Setia Budi, and Dermawan Zebua. "Analisis Pengaruh Lokasi Dinding Geser Terhadap Pergeseran Lateral Bangunan Bertingkat Beton Bertulang 5 Lantai." Ge-STRAM: Jurnal Perencanaan dan Rekayasa Sipil 4, no. 1 (2021): 16. http://dx.doi.org/10.25139/jprs.v4i1.3490.
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Indonesia is one of the countries in the earthquake region. Therefore, it is necessary to build earthquake-resistant buildings to reduce the risk of material and life losses. Reinforced Concrete (RC) shear walls is one of effective structure element to resist earthquake forces. Applying RC shear wall can effectively reduce the displacement and story-drift of the structure. This research aims to study the effect of shear wall location in symmetric medium-rise building due to seismic loading. The symmetric medium rise-building is analyzed for earthquake force by considering two types of structural system. i.e. Frame system and Dual system. First model is open frame structural system and other three models are dual type structural system. The frame with shear walls at core and centrally placed at exterior frames showed significant reduction more than 80% lateral displacement at the top of structure.
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Wiyono, Daud Rahmat, Deni Setiawan, Asriwiyanti Desiani, et al. "Designing a drilled pile foundation in a dual system structure." E3S Web of Conferences 429 (2023): 04022. http://dx.doi.org/10.1051/e3sconf/202342904022.
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Drilled pile foundations that have been set in hard soil are generally used for buildings with shear walls. By nature, a drilled pile foundation can withstand moments because of the drilled pile’s dimensions and the amount of reinforcement installed. This study presents a structural analysis of a 10-story building supported by a dual system structure to meet earthquake requirements. The results show that, by using a dual system, the earthquake requirements (natural period, modal, story shear, story drift, and P-Delta) are met. Other results show that the base shear force of the shear wall has a value of 58.76% for the X-direction and 63.72% for the Y-direction. The base shear force value of the frame is 41.23% for the X-direction and 36.27% for the Y-direction. Therefore, the requirements of the dual system are met because the resisted base shear force of the frame is higher than 25%. The dual system provides a normal force value of 24.32% for the shear wall, while the frame carries 75.67%. The bearing capacity of the drilled pile with a safety factor = 2.5 is 162 tons for a diameter of 50 cm, 214 tons for a diameter of 60 cm, 340 tons for a diameter of 80 cm, 493 tons for a diameter of 100 cm, 672 tons for a diameter of 120 cm, and 993 tons for a diameter of 150 cm. The result of the pile driving analyzer test values for a 120 cm diameter range from 988 to 1,232 tons.
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Gallegos, Marco F., Gerardo Araya-Letelier, Diego Lopez-Garcia, and Pablo F. Parra. "Collapse Assessment of Mid-Rise RC Dual Wall-Frame Buildings Subjected to Subduction Earthquakes." Buildings 13, no. 4 (2023): 880. http://dx.doi.org/10.3390/buildings13040880.
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In Chile, office buildings are typically reinforced concrete (RC) structures whose lateral load-resisting system comprises core structural walls and perimeter moment frames (i.e., dual wall-frame system). In the last 20 years, nearly 800 new dual wall-frame buildings have been built in the country and roughly 70% of them have less than ten stories. Although the seismic performance of these structures was deemed satisfactory in previous earthquakes, their actual collapse potential is indeed unknown. In this study, the collapse performance of Chilean code-conforming mid-rise RC buildings is assessed considering different hazard levels (i.e., high and moderate seismic activity) and different soil types (i.e., stiff and moderately stiff). Following the FEMA P-58 methodology, 3D nonlinear models of four representative structural archetypes were subjected to sets of Chilean subduction ground motions. Incremental dynamic analysis was used to develop collapse fragilities. The results indicate that the archetypes comply with the ‘life safety’ risk level defined in ASCE 7, which is consistent with the observed seismic behavior in recent mega-earthquakes in Chile. However, the collapse risk is not uniform. Differences in collapse probabilities are significant, which might indicate that revisions to the current Chilean seismic design code might be necessary.
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Suwal, Rajan, and Aakarsha Khawas. "Performance of Reinforced Concrete Shear Wall In Dual Structural System: A Review." Nepal Journal of Science and Technology 21, no. 1 (2022): 91–100. http://dx.doi.org/10.3126/njst.v21i1.49918.
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A dual structural system consists of a momentresisting frame, and vertical reinforced concrete walls called shear walls. Shear walls used in tall buildings are generally located around elevator cores and stairwells. Many possibilities exist in a tall building regarding the location, shape, number, and arrangement of shear walls. Shear walls generally start at the foundation level and are continuous throughout the building height. Their thickness can be as low as 150mm in lowrise to medium-rise buildings or as high as 400mm in high-rise buildings. To establish an effective lateral force-resisting system, the shear walls are located in preferable positions in a structure that minimizes lateral displacements. The shear walls are situated in ideal locations to be symmetrical and torsional effects get reduced. Based on the comparison of various literature regarding the shear wall positions, the shear wall placement at the core or the corners of the structure symmetrically gives the best performance to reduce displacement and story drift. Also, lateral displacement diminishes when the shear wall’s thickness increases.
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Pascua, Marie Claire Litonjua, Richard Henry, and Charlotte Toma. "Review of recently constructed concrete wall-steel frame hybrid buildings." Bulletin of the New Zealand Society for Earthquake Engineering 56, no. 2 (2023): 91–103. http://dx.doi.org/10.5459/bnzsee.1602.
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Around New Zealand there has been an increasing trend of ‘hybrid’ multi-storey buildings that combine reinforced concrete walls with structural steel framing systems. This study aims to characterise and understand this type of building, focusing on buildings constructed in Auckland and Christchurch from 2014 onwards. Drawings from a total of 50 buildings were reviewed, and their structural features were documented, including building use, building height, lateral load resisting system, ductility, wall configuration, wall construction method, steel framing system and suspended floor system. Meetings with structural engineers were conducted to validate the review findings and to further understand design principles and decisions that lead to these outcomes. A typology comprising five building types with distinct lateral load-resisting systems was proposed based on the building review. Results showed regional differences between Auckland and Christchurch, owing to building use and seismic hazard in the respective cities. Auckland buildings surveyed tended to be residential buildings five storeys or higher made of precast walls connected with steel beams. Christchurch buildings, on the other hand, were primarily commercial buildings three to seven storeys high with dual frame-wall systems. Structural connections between steel frames and concrete walls were also documented, showing that bolted connections with headed stud embedment were most common. The results can be used to identify critical aspects of these mixed structural systems for further investigation and to develop archetype building designs that can be used for modelling and testing.
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Bai, Yongtao, and Guoliang Bai. "Pseudo-Dynamic and Quasi-Static Testing of an Irregular Steel Concrete Composite Frame with Wing Walls." International Journal of Structural Stability and Dynamics 16, no. 02 (2016): 1450095. http://dx.doi.org/10.1142/s0219455414500953.
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This paper presents a series of pseudo-dynamic tests (PDTs) and quasi-static tests (QSTs) on a dual wing-walled frame system, represented here by a 1/7-scaled composite moment frame with steel reinforced concrete (SRC) columns and reinforced concrete (RC) wing walls. Special characteristics of this scaled system are irregular story layout, strong-beam weak-column mechanism and large axial load. A series of scaled El-Centro (NS) waves were used as the input ground motion for the PDTs, the results of which showed that the seismic behavior was significantly improved by the RC wing walls. With the strong-beam weak-column connections, severe damages sustained by the longitudinal wing walls (LWW) prevented the potential collapse of column, and the transverse wing wall (TWW) efficiently avoided the fragile shear failure of short columns and panel zone of beam-column joints. The failure mechanisms were identified indicating that wing walls improved the ductility for the bare frame. This study provides a solid experimental support on the evaluation of seismic behavior of irregular SRC frames with RC wing walls, which could be applied in the main factory buildings of thermal power plants (TPP).
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Feng, Yulong, Zhi Zhang, and Zuanfeng Pan. "Seismic performance of high-rise dual modular wall-frame systems." Engineering Structures 264 (August 2022): 114458. http://dx.doi.org/10.1016/j.engstruct.2022.114458.
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Xu, Weixiao, Yudong Zhao, Weisong Yang, Jigang Zhang, and Degang Chen. "Seismic performance of RC frame-shear wall dual structural systems." Structures 58 (December 2023): 105610. http://dx.doi.org/10.1016/j.istruc.2023.105610.
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Assistant, Prof Patil Jaya Dr. P. M. Alandkar. "DRIFT ANALYSIS IN MULTISTORIED BUILDING." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 12 (2016): 490–505. https://doi.org/10.5281/zenodo.203914.
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In Multistoried building design, lateral load ((i.e. wind or earthquake loads) are mainly responsible for drift which very often dictates in selection of structural system for high rid. To bring the maximum drift down to allowable limits, cross sectional of beams and columns have to increase in many case. For buildings having small number of storey, lateral load rarely affect of the building increase, the increase in size of structural members and possible rearrangements of the structure to account for lateral load. The lateral displacement in moment frames is the greatest among the other lateral load resisting systems investigated; the lateral displacement in dual frames is the least while the lateral displacement in shear wall systems is slightly higher than that of the dual system
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Azodi, Maryam, Mehdi Banazadeh, and Amir Mahmoudi. "Seismic performance assessment of high-rise steel moment frame building with Reinforced Concrete (RC) core wall based on nonlinear time history analysis." Research, Society and Development 11, no. 4 (2022): e35711427464. http://dx.doi.org/10.33448/rsd-v11i4.27464.
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This paper focuses on seismic responses of a 30-story high-rise building with a dual lateral system of Reinforced Concrete (RC) core shear wall and steel moment frame. To assess the seismic performance of the building, a nonlinear finite element model is built by using the OpenSees software. This three-dimensional model is created by using the fiber-beams for members and multi-layer shell elements for RC core walls. The numerical simulation has been examined under the thirteen sets of strong ground motion records which are scaled with the design and maximum seismic levels, Design-Basis Earthquake (DBE) and Maximum Considered Earthquake (MCE) level hazards respectively. In consequence, the desirable performance of high-rise steel moment frame building with RC shear core consisting of coupling beams and rectangular shear walls is shown. The outcome of nonlinear time history analyses reports the acceptable seismic performance of tall buildings designed. Results showed that maximum inter-story drift is significantly lower than allowable drift. Also, the RC core wall absorbed almost two-third of the total shear forces from the base level to one-third of height. However, the shear values of the core wall were significantly reduced by increasing the height while the shear values of the steel moment frame stayed constant.
Dissertations / Theses on the topic "Dual Frame wall system"
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ZERBIN, Matteo. "Force-Based Seismic Design of Dual System RC Structures." Doctoral thesis, Università degli studi di Ferrara, 2017. http://hdl.handle.net/11392/2488041.
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Seismic design of standard structures is typically based on a force-based design approach. Over the years, this approach has proven to be robust and easy to apply by design engineers and – in combination with capacity design principles – it provided a good protection against premature structural failures. However, it is also known that the force-based design approach as it is implemented in the current generation of seismic design codes suffers from some shortcomings. One of these relates to the fact that the base shear is computed using a pre-defined force reduction factor, which is constant for a certain type of structural system. As a result of this, for the same design input, structures of the same type but different geometry are subjected to different ductility demands and show therefore a different performance during an earthquake. The objective of this research is to present an approach for computing force reduction factors using simple analytical models. These analytical models describe the deformed shape at yield and ultimate displacement of the structure and only require input data that are available when starting the design process, such as geometry and general material properties. The displacement profiles are obtained from section dimensions and section ductility capacities that can be estimated at the beginning of the design process. The so computed displacement ductility is taken as proxy of the force reduction factor. Such analytical models allow to link global to local ductility demands and therefore to compute an estimate of the force ductility reduction factors for wall and frame structures. Finally, this research develops an approach for frame-wall structures as combination of results obtained for wall and frame systems. The proposed method is applied to a set of frame-wall structures and validated by means of nonlinear time history analyses. Obtained results show that the proposed method yields a more accurate seismic performance than the current code design approach. The presented work therefore contributes to the development of revised force-based design guidelines for the next generation of seismic design codes.<br>La progettazione sismica di strutture è tipicamente basato su un approccio progettuale basato sulle forze. Nel corso degli anni, questo approccio ha dimostrato di essere robusto e facile da applicare dai progettisti e, in combinazione con il principio di gerarchia delle resistenze, fornisce una buona protezione contro i meccanismi di collasso fragili. Tuttavia, è anche noto che l'approccio di progettazione in forze così come attuato nell’odierna generazione di normative soffre di alcune carenze. Uno di questi riguarda il fatto che il tagliante alla base è calcolato utilizzando un fattore di struttura predefinito, cioè costante per tipo di sistema strutturale. Di conseguenza, per lo stesso input di progettazione, strutture dello stesso tipo ma diversa geometria sono sottoposti ad una diversa domanda di duttilità e mostrano quindi una diversa prestazione durante un evento sismico. L'obiettivo di questo studio è quello di presentare un approccio per il calcolo fattori di struttura utilizzando modelli analitici semplici. Questi modelli analitici descrivono la deformata a snervamento e spostamento ultimo della struttura e richiedono solo dati di input disponibili all’inizio del processo di progettazione, quali dati geometrici e proprietà dei materiali. La deformata della struttura ottenuta dalle dimensioni delle sezioni e la capacità in termini di duttilità sezionale possono essere stimati all'inizio della progettazione. La duttilità è alla base della formulazione del fattore di struttura come proposto dai modelli analitici presentati. Tali modelli analitici permettono di collegare le duttilità sezionali alla duttilità strutturale e quindi calcolare una stima del fattore di struttura per struttura a pareti e a telaio. Infine, si sviluppa un approccio per strutture duali di tipo telaio-parete come combinazione di risultati ottenuti per i sistemi singoli. Il metodo proposto è applicato ad un insieme di strutture duali e validato con analisi dinamiche non lineari. Si dimostra che il metodo proposto produce una più accurata prestazione sismica rispetto all'approccio progettuale delle normative odierne. Il lavoro presentato contribuisce pertanto allo sviluppo di nuove linee guida per la progettazione sismica nella prossima generazione di normative.
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TUNC, GOKHAN. "RC/COMPOSITE WALL-STEEL FRAME HYBRID BUILDINGS WITH CONNECTIONS AND SYSTEM BEHAVIOR." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1020441384.
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Guler, Gokay. "Effect Of Inelastic Behaviour Of Load Bearing Walls On The Frame." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12610566/index.pdf.
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The purpose of this study is to investigate the influence of material and geometric nonlinearities occurring in beams, columns and walls of RC frame-wall structural systems when undergoing severe ground excitations. For this purpose, a low-rise RC building is considered with and without walls, and the joining beams and columns are designed with the strong-column weak-beam concept. The dimensions, material properties and the reinforcement amounts are calculated in accordance with the values suggested in design codes. Each structure is analyzed for various levels of applied vertical force and change in wall stiffness<br>where the effect of geometric nonlinearity is considered for each case. Force formulation frame elements with spreading inelasticity over the span are used for the modelling of each beam, column and wall. The coupling of the section forces is obtained by the fibre discretization of the section into several material points. Each section is divided into confined and unconfined regions and appropriate material properties are used for concrete and steel for cyclic loading. Both static pushover and dynamic analyses are performed in order to replicate the worst case scenario for a possible earthquake. From this study, it is concluded that the beams and columns of a frame-wall structural system should be designed carefully for load redistributions resulting from the yielding of the wall in the case of a strong earthquake, thus the design codes should address this situation for both in the retrofit of existing frame buildings with walls and in the construction of new frame-wall type buildings.
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Wearing, Christopher. "Evaluation of force distribution within a dual special moment-resisting and special concentric-brace frame system." Thesis, Kansas State University, 2017. http://hdl.handle.net/2097/35483.
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Master of Science<br>Department of Architectural Engineering and Construction Science<br>Kimberly W. Kramer<br>Dual Lateral Force Resisting Systems are currently required by code to include a Moment Resisting Frame capable of resisting at least 25% of the lateral loads. This thesis evaluates the seismic performance of a specific type of dual system: a Special Moment Resisting Frame-Special Concentric Brace Frame System (SMRF-SCBF) under three different force distributions. The three distributions were 80% - 20%, 75% - 25%, and 70% - 30% with the lesser force being allotted to the Special Moment Resisting Frame (SMRF) portion of the system.
In order to evaluate the system, a parametric study was performed. The parametric study consisted of three SMRF-SCBF systems designed with different seismic force distributions. The aim of this study was to determine accuracy of the three different seismic force distributions. The accuracy was measured by comparing individual system models’ data and combined system models’ data. The data used for comparison included joint deflections (both horizontal and vertical), induced moments at moment connections, brace axial loads, column shears, and column base reactions.
Two-dimensional models using the structural software RISA 3D were used to assist in designing the independent Seismic Force Resisting Systems. The designs of the frames were not finely tuned (smallest member size for strength), but were designed for drift (horizontal deflection) requirements and constructability issues. Connection designs were outside the scope of the study, except for constructability considerations – the SMRF and the SCBF did not have a common column; the frames were a bay apart connected with a link beam.
The results indicated that a seismic force distribution of 75% to the SCBF and 25% to the SMRF most accurately predicts that frame’s behavior. A force distribution of 80% to the SCBF and 20% to the SMRF resulted in moderately accurate results as well.
A vast opportunity for further research into this area of study exists. Alterations to the design process, consideration of wind loads, or additional force distributions are all recommended changes for further research into this topic.
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Aukeman, Lisa J. "ASCE 7-05 DESIGN RULE FOR RELATIVE STRENGTH IN A TALL BUCKLING-RESTRAINED BRACED FRAME DUAL SYSTEM." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/464.
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In mid- to high-rise structures, dual systems (DS) enable a structural designer to satisfy the stringent drift limitations of current codes without compromising ductility. Currently, ASCE 7-05 permits a variety of structural systems to be used in combination as a dual system yet the design requirements are limited to the following statement: Moment frames must be capable of resisting 25% of the seismic forces while the moment frames and braced frames or shear walls must be capable of resisting the entire seismic forces in proportion to their relative rigidities.
This thesis assesses the significance of the 25% design requirement for the secondary moment frames (SMF) in dual systems with consideration of current structural engineering practice. Three 20-story buckling-restrained braced frame (BRBF) dual system structures were designed with varying relative strengths between the braced and special moment frame systems. The SMF system wa designed for 15%, 25%, and 40% of seismic demands and the BRBF system design has been adjusted accordingly based on its relative stiffness with respect to the moment frame. These structures were examined with nonlinear static and nonlinear dynamic procedures with guidance from ASCE 41-06.
The drift, displacement and ductility demands, and the base shear distribution results of this study show similar responses of the three prototype structures. These results indicate a secondary moment frame designed to less than 25% of seismic demands may be adequate for consideration as a dual system regardless of the 25% rule.
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Piskláková, Petra. "Požární stanice typu C1 ve Valašském Meziříčí." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372150.
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The diploma thesis deals with project documentation for the realization of a new fire station class C1 in Valašské Meziříčí. The building is is designet in two operating units - the garage part and the administrative part. The garage part has the necessary technical facilities and stockrooms. Over the garage there are rooms for firefighters performing the service during the night shift. The garage part follows the administrative part of the building, which has three above-ground floors. On the first floor there are offices of fire prevention, population protection and crisis management. On the second floor there are facilities for firefighters - a gym, a sauna, a day room and a classroom. The third above-ground floor is designed for the head of the territorial department, the chief of the fire station and the integrated rescue system office. The main entrance to the building is located in the administrative part of the western side at level 1NP. The structural system of the garage part consists of a prefabricated reinforced concrete frame. The administrative part is built in mansory system. The building is without cellar, roofed with flat roofs.
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Trutalli, Davide. "Insight into seismic behaviour of timber shear-wall systems." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3424481.
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This Ph.D. dissertation is the result of a three-year research activity focused on structural and seismic engineering applied to innovative timber constructive systems. The main purpose is to give a contribution to international scientific research and current design practice about the seismic behaviour of timber shear-wall systems, which still represent an innovation in the construction industry and are being developed due to their favourable characteristics.
An initial overview on the use of main timber structural systems in seismic-prone areas for low- and medium-rise buildings is provided, within the context of current European seismic code.
The theme of the seismic design of timber shear-wall systems is discussed in the first part, giving close attention to linear and non-linear modelling criteria: various strategies are proposed and main characteristics are highlighted. Basic definitions and concepts proper of the seismic analysis of timber structures are provided. A particular attention is paid to the definition and application of the capacity design approach and the close link with the concept of behaviour factor is emphasized. Finally, the definition of behaviour factor, as product between an “intrinsic” capacity of the structure and a design over-strength value is proposed. This definition allows to characterize the structural systems with their proper dissipative capacity and to evaluate separately the safety reserve introduced by design.
The second part analyses the structural behaviour of the cross-laminated timber (CLT) technology, which represents one of the most common timber structural systems. The concepts of ductility, dissipative capacity, regularity and irregularity applied to CLT system are provided. The seismic response and the dissipative capacity of this system are firstly evaluated via an experimentally based procedure. Then, the evaluation of its intrinsic dissipative capacity is determined via non-linear numerical modelling with the aim of studying the correlation with the construction variables. Results show that the construction design decisions affect the seismic response and dissipative capacity of buildings, as opposed to apply a single behaviour factor value to the whole CLT technology. A statistical analysis applied to numerical results allowed also to propose analytical formulations for the computation of the suitable behaviour factor value for regular buildings. Then, the same analyses carried out on in-elevation non-regular buildings returned a correction factor to account for the reduction in dissipative capacity due to irregularity.
The application of the CLT technology to realize high-rise buildings is presented in the third part, analysing the behaviour of slender buildings with seismic resisting core and perimeter shear walls. The major limitations and drawbacks in realizing these structures in areas characterized by high seismic intensity and their implication in the design are reported.
The final part presents three novel structural systems as alternative to more common technologies, as CLT or platform frame. These innovative systems are characterized mainly by a diffuse dissipative and deformation capacity when subjected to seismic loads, while in CLT system such capacity is concentrated in connection elements. This different response is studied via quasi-static tests and numerical simulations. In detail, two non-glued massive timber shear walls and a mixed steel-timber wall with an innovative bracing system are presented.<br>Questa tesi di dottorato è il risultato di tre anni di attività di ricerca in ambito ingegneristico strutturale applicato allo studio di sistemi costruttivi innovativi in legno. Il principale obiettivo è quello di fornire un contributo alla ricerca scientifica internazionale e ai metodi attuali di progettazione in merito alla risposta sismica di sistemi in legno a pareti sismo-resistenti, i quali rappresentano tutt’ora un’innovazione nel settore delle costruzioni e si stanno diffondendo grazie alle loro caratteristiche favorevoli.
Una panoramica iniziale sull’utilizzo dei principali sistemi strutturali in legno in zone sismiche per la realizzazione di edifici bassi o di media altezza viene fornita e contestualizzata nella vigente normativa sismica europea.
La prima parte della tesi affronta il tema della progettazione sismica di sistemi a pareti in legno, con particolare attenzione ai criteri di modellazione lineare e non lineare, proponendo diverse strategie ed evidenziandone le caratteristiche. In questa parte vengono forniti inoltre definizioni e concetti fondamentali propri dell’analisi sismica di strutture in legno. Un’attenzione particolare è riservata alla definizione e applicazione del “capacity design”, sottolineandone lo stretto legame con il concetto di fattore di struttura. Viene proposta infine una definizione del fattore di struttura come prodotto tra una parte intrinseca alla struttura e una sovraresistenza di progetto. Tale definizione permette di caratterizzare i sistemi strutturali con la propria capacità dissipativa e di valutare separatamente la riserva di sicurezza introdotta dalla progettazione.
La seconda parte della tesi analizza il comportamento strutturale della tecnologia X-Lam (CLT), che rappresenta uno dei più comuni sistemi strutturali in legno. In questa parte vengono approfonditi i concetti di duttilità, capacità dissipativa, regolarità e irregolarità applicati al sistema X-Lam. La risposta sismica e la capacità dissipativa di questo sistema sono state preliminarmente valutate tramite una procedura analitico-sperimentale. Modelli numerici non-lineari hanno quindi permesso di valutarne la capacità dissipativa intrinseca in funzione delle variabili costruttive proprie del sistema. I risultati mostrano come le decisioni costruttive in fase di progettazione influenzino la risposta sismica dell’edificio; ciò è in contrasto all’applicazione di un unico valore del fattore di struttura per l’intera tecnologia X-Lam. Un’analisi statistica applicata a tali risultati numerici ha consentito di proporre formulazioni analitiche per il fattore di struttura per edifici regolari in funzione delle caratteristiche dell’edificio stesso. Infine, le stesse analisi condotte su edifici non regolari in altezza hanno fornito un coefficiente per tenere in conto della riduzione di capacità dissipativa a causa dell’irregolarità.
Nella terza parte viene presentata un’applicazione della tecnologia X-Lam per costruire edifici alti, analizzando il comportamento di edifici snelli con nucleo sismo-resistente e pareti aggiuntive perimetrali. Vengono riportati inoltre le principali limitazioni e inconvenienti nel realizzare tali strutture in aree caratterizzate da elevata intensità sismica e le loro implicazioni nella progettazione.
La parte finale descrive e analizza tre sistemi strutturali in legno innovativi, come alternative a tecnologie più comuni, quali X-Lam o platform-frame. Questi sistemi, soggetti ad azioni sismiche, sono caratterizzati da una capacità deformativa e dissipativa diffusa, al contrario del sistema X-Lam in cui tale capacità è concentrata principalmente negli elementi di connessione. Questa risposta differente è studiata attraverso test sperimentali quasi statici e simulazioni numeriche. In dettaglio, sono presentati e analizzati due sistemi a pareti massicce stratificate; realizzate senza l’uso di colla tra gli strati e una parete ibrida acciaio-legno con un sistema innovativo di controvento.
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Brož, Matěj. "Požární stanice." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265667.
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The aim of my diploma thesis is a design of fire station. The object is designed to be fire station type C and it is for fire brigade. The object is designed in Czech Budweis. The building has two above ground floor. The structural system of building is wall system and reinfroced concrete frame. The roof is warm flat roof. The facade is ventilated with cladding and sandwich facade panel. Drawing part processed in a computer program ArchiCAD.
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Nečadová, Klára. "Bytový dům ve Vsetíně - stavebně technologická příprava." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226512.
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I occupy with selected parts of the technological prepariation of building proces of a residential building in Vsetín in my diploma thesis. The building will be used for housing and retailing. The project is composed of eight building objects, while the main building structure is designed in detail. The subject of this thesis is the preparation of the technical report of the building, the treatise of the main technological stages, the design of the building site, the design of the main building machinery, the technology solutions including HSF and CTP, the construction budget, the time and financial planning of the construction and the specialization in the field of civil engineering.
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Ccahuana, Nieto Willians Joseph, and Aguilar Juan Alejandro Coronel. "Análisis sísmico comparativo entre un edificio de placas de concreto armado y una edificación de pórticos de acero a través del Diseño Directo Basado en Desplazamientos." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/653692.
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Muchas ciudades del Perú se encuentran ubicadas en el cinturón de fuego del Pacífico, en consecuencia, existe una mayor probabilidad de ocurrencias de sismos que generen cuantiosas pérdidas de vida y grandes perjuicios económicos.
Debido a este problema, la ingeniería civil está en la obligación de investigar nuevos diseños sísmicos más precisos, los cuales originaron diversos métodos que usan a los desplazamientos de la estructura como parámetro principal, ya que a través de los desplazamientos se pueden obtener los momentos y cortantes de la estructura. A este método se le conoce como Diseño Basado en Desplazamientos. El autor que le dio los lineamientos teóricos más amplios y consistentes es Priestley, con su propuesta llamada Diseño Directo Basado en Desplazamientos.
Por otro lado, en la realidad peruana, las edificaciones con sistema estructura del pórtico de acero son atípicos en comparación con las de sistema dual de concreto armado. En consecuencia, se desaprovecha las propiedades de este material y de este sistema estructural, el cual se sumerge más en el rango inelástico que el concreto.
La tesis analizará los resultados obtenidos del análisis sísmico de una estructura de sistema dual y otra de pórticos de acero, ambas con una misma configuración arquitectónica, bajo las metodologías de Diseño Directo Basado en Desplazamientos y de Diseño Basado en Fuerzas. Esto generará la comparación entre los sistemas estructurales bajo las metodologías mencionadas.<br>Many cities in Peru are located in the Pacific ring of fire, consequently, there is a greater probability of earthquakes that generate large losses of life and great economic damage.
Due to this problem, civil engineering is obliged to investigate new more accurate seismic designs, which originated several methods that use the displacements of the structure as the main parameter, since through the displacements the moments and shear of the structure can be obtained. This method is known as Displacement Based Design. The author who gave the broadest and most consistent theoretical guidelines is Priestley, with his proposal called Direct Displacement Based Design.
On the other hand, in the Peruvian reality, steel frames buildings system are atypical compared to those of the dual wall-frame with reinforced concrete system. Consequently, the properties of this material and this structural system are wasted, which is more immersed in the inelastic range than concrete.
The thesis will analyze the results obtained from the seismic analysis of a dual wall-frame building and another of steel frames, both with the same architectural configuration, under the Direct Displacement Based Design method and the Design Based Force method, which is the method used in most standards. The thesis will generate the comparison between the structural systems under the mentioned methodologies.<br>Tesis
Book chapters on the topic "Dual Frame wall system"
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Najajra, Mohanad Ali Ishaq, Taha Ahmed Ghaleb Mohammed, and Wesam Al Agha. "Study on the Seismic Performance of Multi-storey Reinforced Concrete Building with Dual Framed-Shear Wall System Considering Soft Storey." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-6229-7_58.
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Chunyang, ZHU, and MEI Siyang. "Study on Seismic Performance of Hinged Frame-Rocking Wall System." In Proceedings of the 2024 3rd International Conference on Applied Mechanics and Engineering Structures (AMES 2024). Atlantis Press International BV, 2024. http://dx.doi.org/10.2991/978-94-6463-473-0_17.
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Shukhardin, Andrey, Marina Gravit, Ivan Dmitriev, Gleb Nefedov, and Tatiana Nazmeeva. "Fire Simulation of Light Gauge Steel Frame Wall System with Foam Concrete Filling." In Advances in Intelligent Systems and Computing. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-19756-8_80.
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Génin, Chloé, Dirk Schneider, and Ralf Stark. "Dual-Bell Nozzle Design." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53847-7_25.
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Abstract The dual-bell nozzle is an altitude adaptive nozzle concept that offers two operation modes. In the framework of the German Research Foundation Special Research Field SFB TRR40, the last twelve years have been dedicated to study the dual-bell nozzle characteristics, both experimentally and numerically. The obtained understanding on nozzle contour and inflection design, transition behavior and transition prediction enabled various follow-ups like a wind tunnel study on the dual-bell wake flow, a shock generator study on a film cooled wall inflection or, in higher scale, the hot firing test of a thrust chamber featuring a film cooled dual-bell nozzle. A parametrical system study revealed the influence of the nozzle geometry on the flow behavior and the resulting launcher performance increase.
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Hildebrandt, Harrison, Mengxi He, Peng-An Chen, Rebeca Duque Estrada, Christoph Zechmeister, and Achim Menges. "Slack Pack: Fabrication System for the Dual Robotic Winding of Spatial Fiber Structures." In Computational Design and Robotic Fabrication. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8405-3_40.
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AbstractAdvancements in technology are ushering in an era in architecture in which new design methods and tools are being developed that necessitate entirely new means of fabrication, and, inversely, novel innovations in fabrication require completely new ways of designing. Coreless filament winding is a contemporary fabrication method in which fiber reinforced polymers are robotically wound on frames. Even though research on the frame design has reached promising levels of adaptability and material efficiency, these frames limit fabrication flexibility and increase fabrication time and costs. This paper introduces Slack Pack, a novel fiber winding technique for the fabrication of deployable spatial structures. It eliminates the use of frames by introducing slack into the fabrication process through the controlled tensioning and un-tensioning of fibers. Slack Pack employs a cyber-physical fabrication system that combines a generative design workflow and a multi-agent robotic fabrication setup with a custom end effector. The proposed method is evaluated through a series of physical experiments and digital simulations, demonstrating its potential for the fabrication of spatial fiber structures.
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Jain, D. K., and M. S. Hora. "Interaction Analysis of Space Frame-Shear Wall-Soil System to Investigate Forces in the Columns Under Seismic Loading." In Advances in Structural Engineering. Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-2193-7_62.
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White, Joe, and Hamish McKenzie. "Seismic Strengthening of the Majestic Centre, Wellington, New Zealand." In Case Studies on Conservation and Seismic Strengthening/Retrofitting of Existing Structures. International Association for Bridge and Structural Engineering (IABSE), 2020. http://dx.doi.org/10.2749/cs002.095.
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<p>The Majestic Centre is a 30-storey office tower in the centre of Wellington, New Zealand. The structure has a dual lateral system (reinforced concrete (RC) moment frame + shear cores) and hollow-core floors. The building’s assessed seismic performance was found to be below expected levels, leading to a strengthening exercise. Over a period of 5 years, the structures performance was raised to meet current seismic loading requirements, at a cost of €50M.</p>
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Ren, Hongmei, Jianping Zhu, Yanyan Lv, and Weiwei Qin. "Aseismic Design of an Out-of-Code High-Rise Building in Shanghai." In Advances in Frontier Research on Engineering Structures. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8657-4_3.
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AbstractProper structural system and performance-based seismic design are the key issues in designing high-rise building structures. This project has unique building facade shape and complex plane function layout, and the structural plane and vertical layout are irregular. The superstructure adopts assembled integral concrete frame-shear wall structure, which is judged as out-of-code high-rise building by seismic review. Firstly, the site conditions, foundation design and structural form selection are introduced. Then, YJK software is used to calculate and analyze the seismic force of the superstructure, and the seismic performance indexes of the structure can meet the requirements of the code. Finally, the regularity of each structural unit of the superstructure is judged, and the corresponding main seismic strengthening measures are put forward.
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Klötzer, Christian, Martin-Christoph Wanner, Wilko Flügge, and Lars Greitsch. "Implementation of Innovative Manufacturing Technologies in Foundries for Large-Volume Components." In Annals of Scientific Society for Assembly, Handling and Industrial Robotics 2021. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-74032-0_19.
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AbstractThe development of new manufacturing technologies opens up new perspectives for the production of propellers (diameter < 5 m), especially since the use of the established sand casting process as a technology is only partially competitive in today’s market. Therefore, different applications of generative manufacturing methods for the implementation into the production process were investigated. One approach is the mould production using additive manufacturing processes. Investigations showed that especially for large components with high wall thicknesses available systems and processes for sand casting mould production are cost-intensive and conditionally suitable. With our development of a large-format FDM printer, however, the direct production of large-format positive moulds for, for example, yacht propellers up to 4 m in diameter is possible. Due to the comparatively low accuracy requirements for the mould, the focus is on the durability of the drive system and the rigidity of this FDM printer. Equipped with simple linear technology in portal design and cubic design of the frame structure with rigid heated print bed, the aim is to achieve maximum material extrusion via the print head. The production of plastic models not only facilitates handling during the moulding process, but also allows considerable time and cost savings to be made during the running process. A further step in our development is the direct production of the components using WAAM. A possible concept for robot-supported build-up welding for the production of new innovative propeller geometries is presented using the example of a hollow turbine blade for a tidal power plant.
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Khan, Mohd Mueez, Kiran Devi, Kaushal Sharma, Neeraj Verma, and Neeraj Saini. "Comparison of Tall Building G+30 Based on Shear Wall System and Dual system." In Computational Analysis of Buildings. Grinrey Publishing, 2024. http://dx.doi.org/10.55084/grinrey/ert/978-81-964105-4-4_3.
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The construction of high-rise buildings has been significantly affected by the growth in urban population and the scarcity of available land. With an increase in building height, lateral loads significantly impact the design. When designing tall buildings, safety and minimal damage should come first so that they can withstand lateral stresses. The structure should have enough lateral strength, lateral stiffness, and ductility to achieve these requirements. Designers may decide to focus on shear wall systems or moment-resisting frame systems among the many structural systems. Examining and monitoring how these systems behave when there is a seismic influence is crucial. In the present study, seismic response of structural system at different seismic zones was analyzed. The seismic reaction was quantified in terms of time, the largest story displacement, largest story drift, required amount of steel and concrete. Regardless of the building height and seismic zones, results showed that a shear wall system was more effective in terms of cost and lateral load resistance. The goal of the present study was to compare the seismic behavior of two bare frame systems and assess the working of shear walls work with moment-resisting frames. Shear walls and bare frames are combined in the first model, while shear walls are absent in the second model and are analyzed statically and dynamically using ETABS 2020 software.
Conference papers on the topic "Dual Frame wall system"
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Folkers, Joie L. "Dual Wall Piping System for Containment and Superior Impact Resistance." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98448.
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Abstract A novel means of producing secondarily contained fiberglass reinforced plastic (FRP) piping has emerged which will greatly improve the performance and installation characteristics of the product. This method of manufacture and the product, called coaxial piping, will be reviewed and explained. The enhanced features and benefits will be discussed, including simplified installation and reduced cost. A fundamental improvement in the impact resistance of the product has occurred due to the nature of the construction of the product, which will also be presented.
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Leary, Rob, and Gene Silverman Phd. "Remote Monitoring of the Mechanical Integrity of Oil Sands Facility High Wear Components." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09720.
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Abstract This paper discusses the implementation of an on-line remote ultrasonic (UT) system at a SAGD (Steam Assisted Gravity Drainage) facility located within the Athabasca oil sands reserves in Northern Alberta. SAGD is a thermal, enhanced oil recovery technology applied to areas of deeper overburden utilizing horizontal wells with steam injection to reduce reservoir viscosity thus facilitating bitumen recovery. Given the nature of the reserve, enhanced sand and the potential erosive nature of it, are common concerns from a process and equipment integrity perspective. As a damage mechanism, erosion can be complicated, with a number of process and equipment parameters influencing such as flow regime, velocity, particle chemistry/size/shape, impact or contact angles, equipment geometry, etc. Wall loss rates may of course vary, but can be quite aggressive and difficult to predict. Within a SAGD facility, an area of focus for surface equipment is the production piping off of the wellheads. In presence of an erosive environment, the initial changes in direction (e.g. elbows, tees) may be most susceptible. Under controlled, predictable operational modes, a typical thickness survey by manual readings at extended intervals, can and has been effective for long term trending. However, this strategy will not facilitate detection and prevention of damage that may lead to component failure in a short time frame (e.g., hours), thus a continuous, remote method of monitoring, with notification capabilities was pursued.
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Lukačević, Ivan, Emanuel Krupa-Jurić, Ivan Ćurković, and Marko Barišić. "BEHAVIOUR OF DUAL STEEL FRAMES WITH INNOVATIVE DOUBLE SKIN COLD-FORMED STEEL CONCRETE COMPOSITE SHEAR WALLS." In 3rd Croatian Conference on Earthquake Engineering. University of Zagreb Faculty of Civil Engineering, 2025. https://doi.org/10.5592/co/3crocee.2025.105.
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Dual systems that combine moment-resisting frames with innovative replaceable bracing systems offer significant advantages over conventional solutions. The key benefits of these systems include energy dissipation at specific locations and a re-centring capability, which substantially reduces repair costs. However, the design of such systems must meet specific requirements, such as using higher steel grades to ensure the part of the system remains elastic and structural solutions for the double skin cold formed shear wall filled with concrete which ensure the system’s ductile behaviour. This paper presents an assessment of dual systems, based on finite element analysis, that integrate moment-resisting multi-story frames with innovative double-skin cold-formed steel concrete composite shear walls. The steel frame consists of three bays with a central braced frame and two adjacent moment-resisting frames. The shear wall, acting as a bracing system, consists of corrugated cold-formed steel sheets filled with concrete which are connected with intermediate shear connectors forming a sandwich steel-concrete-steel panel. In the first step, nonlinear analyses of individual shear wall panels are conducted taking into account influences of steel sheet thickness, concrete strength and type of shear connection. Using the resulting load-displacement behaviour of the analysed shear walls, pushover analyses are performed. The performance of the analyzed systems is discussed in terms of collapse mechanisms, capacity curves, overstrength ratios, behaviour factors, and potential improvements for the shear wall's performance. The analysed systems demonstrated their dual behaviour and re-centring capabilities, but further research on different shear wall typologies will provide deeper insights into their practical applications.
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Hegeir, Osama, Haris Stamatopoulos, and Kjell Arne Malo. "SERVICEABILITY PERFORMANCE OF TIMBER DUAL FRAME-WALL STRUCTURAL SYSTEM UNDER WIND LOADING." In World Conference on Timber Engineering 2023 (WCTE2023). World Conference on Timber Engineering (WCTE 2023), 2023. http://dx.doi.org/10.52202/069179-0384.
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Handzhiyski, Lachezar V., and Kevin S. Moore. "Innovative Seismic Design using Performance-based Procedures." 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.2019.2063.
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<p>In modern projects, performance based seismic design (PBD) procedures are often used to design buildings in areas of high seismic activity that meet defined performance objectives instead of prescriptive building code requirements or have certain features and configurations that are not normally permitted by the building codes. Evaluating buildings with PBD is computationally intensive and time-consuming, resulting in little opportunity for iteration during the design development phase. This paper illustrates how rigorous use of PBD can result in less expensive and more sustainable buildings that meet the intent of building codes with a higher degree of precision than typical code-compliant designs.</p><p>Several examples show the relative cost of a building designed using PBD procedures compared with that of a conventional code-based design. The first example compares a PBD concrete core-only system with a code- based dual system comprising concrete core walls and moment frames. The second example presents direct benefit resulting from PBD, reducing vertical and confining steel reinforcing in concrete wall buildings. The third example shows PBD reducing column and foundation demands in structural steel braced frame buildings. Project stakeholders can use the presented data to evaluate the economic viability of PBD for their structures.</p>
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Brzev, Svetlana, Jovana Borozan, Marko Marinković, et al. "CLASSIFICATION OF RESIDENTIAL BUILDING STOCK IN SERBIA." In 2nd Croatian Conference on Earthquake Engineering. University of Zagreb Faculty of Civil Engineering, 2023. http://dx.doi.org/10.5592/co/2crocee.2023.100.
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Developing a classification system (taxonomy) for buildings is a critical step for seismic risk assessment studies. Such a system can be used to characterize a building portfolio within urban/rural settlements or building stock for the entire country. Serbia is located in a region characterized by a moderate seismic hazard. In the last century, 10 earthquakes of magnitude 5.0 and higher occurred in Serbia, the strongest (M 6.0) in 1922. The strongest earthquake in the 21st century (Mw 5.5), with an epicenter close to Kraljevo, occurred in November 2010 and caused significant damage to residential buildings. In 2019, members of the Serbian Association for Earthquake Engineering (SUZI-SAEE) contributed to the SERA project and its goal to develop a seismic risk model for Europe. A taxonomy of residential buildings in Serbia was developed based on previous national and regional building stock studies. The proposed taxonomy includes the Lateral Load-Resisting System (LLRS) (e.g., wall, frame, dual wall-frame system) and material of the LLRS (e.g., masonry, concrete, wood) as the main attributes. The type of floor diaphragm (rigid or flexible) has been specified only for masonry typologies with unreinforced masonry walls, while building height and date of construction have been implicitly considered. According to the proposed taxonomy, there are 9 residential building typologies in Serbia; out of those, 5 typologies are related to masonry structures, 3 are related to RC structures, and one is related to wood structures. This paper describes the proposed taxonomy and outlines the characteristic features of different building typologies and their relevance for estimating seismic vulnerability and risk. A comparison of the proposed taxonomy for Serbia and published taxonomies for Croatia is also presented.
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Petrović, Milica, and Svetlana Nikolić Brzev. "PREFABRICATED REINFORCED CONCRETE RESIDENTIAL BUILDINGS: A FOCUS ON THE JUGOMONT SYSTEM." In 3rd Croatian Conference on Earthquake Engineering. University of Zagreb Faculty of Civil Engineering, 2025. https://doi.org/10.5592/co/3crocee.2025.59.
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The second half of the 20th century was marked by the rise of prefabricated concrete systems used as the best solution for fast construction after the vast devastation of the building stock after the WWII. In Yugoslavia, several innovative structural systems were used for mass construction of multi-family housing blocks. Two large groups of prefabricated systems were: 1) large panel and 2) dual frame-wall systems. Some of these systems were adapted from other European countries by local construction companies, such as Rad-Balency, but over time engineers developed new ones, the most famous being the IMS building system developed by Professor Branko Žeželj at the Institute IMS in Belgrade. A construction boom from 1964-1980 brought new urban projects and developments, such as Novi Beograd (New Belgrade) in Serbia, Novi Zagreb (New Zagreb) and Split 3 in Croatia, Nova Gorica in Slovenia, and the reconstruction of Skopje, North Macedonia after the 1963 earthquake. This paper presents a case study on the systems used in New Belgrade, which was the largest urban development in Serbia and Yugoslavia, and a polygon for experiments in architecture and construction technologies. Architectural and structural features of selected prefabricated systems will be described, with the focus on features that may influence seismic performance of these systems, as well as their failure mechanisms. Studies on seismic evaluation and performance of these prefabricated systems are very scarce, and they have not been exposed to the effects of damaging earthquakes to date. The paper is expected to be of interest to engineers and architects interested in seismic behaviour of these prefabricated systems.
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Merli, F., P. Z. Sterzinger, M. Dellacasagrande, et al. "Unsteady Effects due to Rotor Purge Flow Variations in a Dual-Spool Turbine Setup." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-15216.
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Abstract The paper discusses the impact of rotor purge flows on the unsteady flow field downstream of a two-stage, two-spool test turbine. The analyzed setup is representative of the second high-pressure turbine (HPT) and the first low-pressure turbine (LPT) stage in a modern turbofan aero-engine, with a turbine center frame (TCF) with non-turning struts in-between the two turbines. All measurements were carried out for an engine-representative test vehicle setup at the Transonic Test Turbine Facility at Graz University of Technology. The test rig features a secondary air system delivering five purge flows with independent temperature and mass flow control to the HPT and LPT cavities. This work extends the results shown in two recent publications analyzing the time-resolved flow through the same two-stage setup at fixed purge flow rates. The paper aims to provide additional input about the driving sources of unsteadiness in gas turbines for aeronautic applications, by isolating the HPT and LPT purge air contributions. The time-resolved flow field at the LPT exit was acquired with a Fast Response Aerodynamic Pressure Probe (FRAPP) for three different purge conditions (reference case, no HPT purge case, no LPT purge case), to separate and quantify the impact of HPT and LPT purge contributions on the main flow field. The so-called Rotor Synchronic Averaging (RSA) technique was used as phase-averaging approach, to account for the unsteadiness due to both rotors. Proper Orthogonal Decomposition (POD) was then applied to isolate the most important structures and identify their origins. The comparison of the three data-sets shows a significant influence of the HPT purge on the entire flow field at the LPT exit, even though the HPT is located far upstream, while the LPT purge impact appears to mostly affect the end-wall region.
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Xu, Xiaoyu, Decheng Wu, Rui Li, Xin Huang, Chul-Hee Lee, and Sheng Liu. "DANF: Dual-Flow Aggregation Network for Curtain Wall Frame Real-Time Segmentation." In 2023 China Automation Congress (CAC). IEEE, 2023. http://dx.doi.org/10.1109/cac59555.2023.10449973.
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Hassan, Waqar, Naveed Anwar, Pramin Norachan, and Fawad A. Najam. "The Seismic Performance Evaluation of RC High-rise Buildings Designed to Various Building Codes." In IABSE Conference, Kuala Lumpur 2018: Engineering the Developing World. International Association for Bridge and Structural Engineering (IABSE), 2018. http://dx.doi.org/10.2749/kualalumpur.2018.0427.
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<p>This study evaluates and compares the expected seismic performance of a high-rise building when designed according to various international building codes. Using a 40-story reinforced concrete (RC) case study building, the comparison among the three most widely used building codes (ACI 318/ASCE 7-10, BS 8110 and EC-2/EC-8) is presented in terms of structural design and seismic performance. The case study building has a dual structural system (moment-resisting frame and shear walls) and is assumed to be located in a highly active seismic region. First, its linear elastic model was created and analysed to perform the code-based design for gravity and seismic loads. The building is designed separately for three codes following their prescribed load combinations, cracked stiffness modifiers and seismic design factors. Then, the detailed performance evaluation of case study building (separately designed for each building code) was carried out using the nonlinear response history analysis (NLRHA) under different input ground motions. Based on obtained results, a comparison of three building codes is presented in terms of the design, seismic performance and economic considerations.</p>
Reports on the topic "Dual Frame wall system"
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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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Super FLEX wall - New frame system for high rise buildings. Purdue University, 2012. http://dx.doi.org/10.5703/1288284315715.
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COLD FORMED STEEL SHEAR WALL RACKING ANALYSIS THROUGH A MECHANISTIC APPROACH: CFS-RAMA. The Hong Kong Institute of Steel Construction, 2022. http://dx.doi.org/10.18057/ijasc.2022.18.3.2.
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Cold-formed steel shear wall panels are an effective lateral load resisting system in cold-formed steel or light gauge constructions. The behavior of these panels is governed by the interaction of the sheathing - frame fasteners and the sheathing itself. Therefore, analysis of these panels for an applied lateral load (monotonic/cyclic) is complex due to the inherent non-linearity that exists in the fastener-sheathing interaction. This paper presents a novel and efficient, fastener based mechanistic approach that can reliably predict the response of cold-formed steel wall panels for an applied monotonic lateral load. The approach is purely mechanistic, alleviating the modelling complexity, computational costs and convergence issues which is generally confronted in finite element models. The computational time savings are in the order of seven when compared to the finite element counterparts. Albeit its simplicity, it gives a good insight into the component level forces such as on studs, tracks and individual fasteners for post-processing and performance-based seismic design at large. The present approach is incorporated in a computational framework - CFS-RAMA. The approach is general and thereby making it easy to analyze a variety of configurations of wall panels with brittle sheathing materials and the results are validated using monotonic racking test data published from literature. The design parameters estimated using EEEP (Equivalent Energy Elastic Plastic) method are also compared against corresponding experimental values and found in good agreement. The method provides a good estimate of the wall panel behavior for a variety of configurations, dimensions and sheathing materials used, making it an effective design tool for practicing engineers.