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Artykuły w czasopismach na temat "MULTISTORYED STEEL BUILDING"
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Meena, Rahul Kumar, G. P. Awadhiya, Abhishek Prakash Paswan i Harshit Kumar Jayant. "Effects of Bracing System on Multistoryed Steel Building". IOP Conference Series: Materials Science and Engineering 1128, nr 1 (1.04.2021): 012017. http://dx.doi.org/10.1088/1757-899x/1128/1/012017.
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Prakash, Arya. "Analysis of Multi-Storied Building with Prestressed Beam using ETABS". International Journal for Research in Applied Science and Engineering Technology 9, nr VI (30.06.2021): 5188–94. http://dx.doi.org/10.22214/ijraset.2021.36137.
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Concrete is good in compression and weak in tension and the steel is strong in tension. So the use of reinforced concrete to resist compression and to hold bars in position and to the steel resist tension. In India RCC structures are commonly used in residential as well as business buildings. Nowadays the Post Tensioning method is widely used due to its advantages. Post tensioning is a form of prestressing, that means the steel is stressed before the concrete has to support the service loads. In this paper is exposed to the assessment of execution of Reinforced concrete beam (RCC beam) and Post-Tensioning beam (PT beam) multistoried building structure framework with seismic load using ETABS software. And also evaluate the performance of PT beam under different seismic zone (zone I, zone II) evaluate the performance of PT beam under soil type (medium soil) and compare the performance of RCC deep beam and PT beam with multistory building system with seismic loading performance.
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khiratkar, Saurabh S., K. R. Dabhekar, N. H. Pitale i Isha P. Khedikar. "Wind Analysis of a Multi Storied Structure". IOP Conference Series: Materials Science and Engineering 1197, nr 1 (1.11.2021): 012060. http://dx.doi.org/10.1088/1757-899x/1197/1/012060.
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Abstract Due to growing population and less availability of land, multistoried buildings are constructed which can serve many people in less area. Purpose of this project is to analysis and designs (G+13) multistory building using E-TABS. Aims are to give proper awareness regarding right design and details of the building. Planning is done using AutoCAD, Designs has involves Load calculations, manually and the Structure is analysis using E-TABS. Codes refer for these projects are NBC IS (456-2000). Concrete mix use is M30. The steel strength for all members is of grade Fe-415 & Fe500. For analyzing the structure, the loads are very important which are calculated using IS (875). The LIMIT STATE METHOD is the method which has been adopted. The manual design is a difficult process and consumes more time. The project purpose is to give the overall experience in the field of planning, design and to gain the knowledge in a practical way.
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Osteraas, J., i H. Krawinkler. "The Mexico Earthquake of September 19, 1985—Behavior of Steel Buildings". Earthquake Spectra 5, nr 1 (luty 1989): 51–88. http://dx.doi.org/10.1193/1.1585511.
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During the September 19, 1985 earthquake about 60 post-1957 multistory steel buildings in Mexico City were subjected to a severe test. In most cases, the damage in the post-1957 structures was minor to moderate. The notable exception is the Pino Suarez complex in which one 21-story building collapsed onto a 14-story building, and two other 21-story buildings were severely damaged. The behavior of these buildings as well as two other case studies are analyzed. Conclusions are drawn on the ductility demands imposed on steel buildings in Mexico City, utilizing simplified structural models and considering the actual strength of buildings that may be much higher than the code design strength.
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Iqbal, Md Shahid. "Analysis & Designing of Multistorey Building with Steel Plate Shear Wall". International Journal for Research in Applied Science and Engineering Technology 9, nr 8 (31.08.2021): 2111–22. http://dx.doi.org/10.22214/ijraset.2021.37750.
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Abstract: Structural design and analysis produces the capability of resisting all the applied loads without failure during its intended life. Lateral loads mainly due to earthquake govern the design of high-rise buildings. The interior structural system or exterior structural system provides the resistance to lateral loads in the structure. The present paper describes the analysis and design of high-rise buildings with Steel Plate Shear Wall (SPSW) for (G+20) stories. The properties of Steel plate shear wall system include the stiffness for control of structural displacement, ductile failure mechanism and high-energy absorption. The design and analysis of the composite building with steel plate shear wall is carried out using software ETABS. The present study is to carry out the response spectrum analysis of a high-rise composite building by optimizing the thickness of steel plate shear wall and to compare the results of displacement, story drift, overturning moment and story shear. The models are analyzed by Response Spectrum analysis as per IS 1893:2002. All structural members are designed as per IS 456:2002 & IS 800:2007 considering all load combinations. Keywords: Seismic; Composite; Shear Wall; Earthquake; Reinforced concrete.
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Quiel, Spencer, i Shalva Marjanishvili. "Progressive Collapse Mitigation in Multistory Tilt-up Structural Systems". Applied Mechanics and Materials 82 (lipiec 2011): 698–703. http://dx.doi.org/10.4028/www.scientific.net/amm.82.698.
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Low-rise office buildings constitute a large portion of the building inventory that is governed by criteria published by the US government. In recent efforts to save costs, building owners and others in this construction sector have explored the use tilt-up construction for these facilities, which eliminates the perimeter steel framing and integrates the concrete façade into the load bearing structure. According to the criteria, many of these buildings meet the height and occupancy thresholds for which progressive collapse resistant design is required. Two major US government agencies, DoD and GSA, provide methodologies for progressive collapse analysis of common structural systems. However these guidelines include limited guidance for the design of tilt-up construction. This paper outlines a methodology for progressive collapse resistant design of tilt-up structures and discusses the increases in reinforcement needed for a prototype building.
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kumar, Udaya, i Dr Aravind Kumar B. Harwalkar. "Analysis of Retrofitted Cold Formed Steel Multistory Building Frame". International Journal of Innovative Technology and Exploring Engineering 10, nr 11 (30.09.2021): 29–39. http://dx.doi.org/10.35940/ijitee.k9468.09101121.
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The cold formed steel section are increasingly used as a structural elements in low rise buildings in recent times, due to the advantages like economic production, easy transportation, low labor cost and high strength to weight ratio. In the current work a G+3 storied building frame is studied for seismic and wind load using Staad-pro software. Light gauge section is taken for beam and slab elements. The seismic analysis is carried out by Equivalent static method. After analysis the results such as story displacement, story drift, Base shear and time period are compared for different models. The building frame is also analyzed for wind load. In the current work cross bracing using Light gauge element used as a retrofitting technique. The retrofitted building frame is analyzed for wind and seismic loads and results obtained for time period, storey displacement, storey drift and base shear values are compared with the corresponding values of base frame. The results of retrofitted frame showed shortening in time period, storey displacement and story drift values in X&Z directions indicating the increased ductility, Stiffness and strength of structure. Hence the proposed retrofitting technique could be believed to achieve success results in increased strength and ductility values required by wind and seismic loading.
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Tremblay, Robert, Sina Merzouq, Carmen Izvernari i Krasimira Alexieva. "Application of the equivalent static force procedure for the seismic design of multistorey buildings with vertical mass irregularity". Canadian Journal of Civil Engineering 32, nr 3 (1.06.2005): 561–68. http://dx.doi.org/10.1139/l05-007.
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The seismic forces and deformations obtained from the equivalent static force procedure and the dynamic analysis method proposed for the 2005 National Building Code of Canada are compared for 4-, 8-, 12-, and 16-storey buildings with structural mass irregularity. Setbacks resulting in 200% and 300% mass discontinuities located at 25%, 50%, or 75% of the building height were considered. The buildings are located in Vancouver and Montréal, and lateral loads are resisted by concentrically braced steel frames. The storey shear forces, overturning moments, and storey drifts obtained from static analysis were found to exceed the values determined from dynamic analysis for all irregular structures except at the base of "podium-type" buildings located at the Vancouver site.Key words: mass, static, dynamic, seismic, shear, overturning moment, deflections, braced steel frames.
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Fujii, Kenji, i Momoka Shioda. "Energy-Based Prediction of the Peak and Cumulative Response of a Reinforced Concrete Building with Steel Damper Columns". Buildings 13, nr 2 (1.02.2023): 401. http://dx.doi.org/10.3390/buildings13020401.
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A steel damper column is an energy-dissipating member that is suitable for reinforced concrete (RC) buildings and multistory housing. To assess the seismic performance of buildings with steel damper columns, the peak displacement of the whole building and the energy dissipation demand of the dampers must be evaluated. This article proposes an energy-based prediction procedure for the peak and cumulative response of an RC frame building with steel damper columns. The proposed procedure considers two energy-related seismic intensity parameters, namely the maximum momentary input energy and the total input energy. The peak displacement is predicted considering the energy balance during a half cycle of the structural response, using the maximum momentary input energy. The energy dissipation demand of the dampers is then predicted considering the energy balance during a whole response cycle using the total input energy. The local responses (e.g., peak drift, maximum plastic rotation of beams, maximum shear strain, and energy dissipation demand of dampers) are predicted using pushover analysis. Numerical analysis results for 8- and 16-story RC buildings show that the proposed prediction method achieves satisfactory accuracy.
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Nejati, Faezeh, Mahmood Hosseini i Amir Mahmoudzadeh. "Design of repairable regular steel buildings with square plan based on seesaw motion of building structure and using DADAS dampers". International Journal of Structural Integrity 8, nr 3 (12.06.2017): 326–40. http://dx.doi.org/10.1108/ijsi-07-2016-0025.
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Purpose Almost design code is required for repairability of the buildings after a major earthquake. One such idea is “directed-damage design” (DDD), which means guiding the damage to some pre-decided parts of the structural system. To use the DDD idea for creation of repairable buildings, in this study, a structural system with seesaw motion with respect to a central massive support has been considered for steel buildings with square plan, and the bottom ends of the all circumferential columns at the lowest story have been equipped with double-ADAS (DADAS) dampers, which dissipate a great portion of the seismic input energy. The purpose of this paper is to investigate the hysteretic behavior of DADAS dampers by using finite element analysis. At first, a set of regular steel multistory buildings with five stories have been designed based on the conventional code provisions. Then, the structures of the designed buildings have been changed into the structure with seesaw motion by using, at the base level of the building, a massive central column, eliminating other middle columns, and equipping circumferential columns with DADAS dampers. Design/methodology/approach For repairability buildings in the last three mentioned studies a set of orthogonal strong girders, in the form of grid, has been used. In the present study, the number of bays in the considered building is four in both directions. A major modification has been made in the yielding-plate energy dissipating elements of the circumferential columns, which makes their manufacturing and installation much practical as illustrated in the following sections of the paper. Findings In the proposed rocking structural system for regular multistory steel buildings, creation of the possibility of rocking motion has been done by using a space truss resting on a huge central hinge support at base level with a series of circumferential energy dissipating columns at that level. Originality/value One such idea is DDD idea, which means guiding the damage to some pre-decided parts of the structural system.
Rozprawy doktorskie na temat "MULTISTORYED STEEL BUILDING"
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Ferrante, Cavallaro Giovanni. "Pseudo dynamic tests and numerical analysis of free from damage multistorey steel buildings with innovative connections". Doctoral thesis, Universita degli studi di Salerno, 2019. http://elea.unisa.it:8080/xmlui/handle/10556/4277.
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2017 - 2018One of the most widespread structural systems is represented by Moment Resisting Frames (MRFs). resistant seismic frames. This structural system is made up of frames capable of resisting seismic actions through predominantly flexural tension states. The stiffness and lateral resistance of the system depend on the flexural strength of the members and the type of connection, while the development of the plastic hinges guarantee the dissipation of the seismic input energy. The location of the dissipative zones varies according to the design approach adopted, typically they develop in beams, columns and connections. The most widespread design philosophy is to have strong columns, weak beams and full-strength rigid connections with complete resistance restoration, in this way all the seismic energy tends to be dissipated by the plastic hinges at the ends of the beams and at the base of the columns of the first level. In order to overcome the traditional design approach, the present research work introduces a new type of beam-column connection capable of exhibiting a remarkable rigidity in service conditions (SLE) and able to exhibit a remarkable dissipative capacity when a rare seismic event occurs. The codes currently in force provide that for seismic events characterized by a period of return comparable with the useful life of the structure (frequent or occasional events) the structures remain in the elastic field ensuring that the seismic energy is completely dissipated through viscous damping. Vice versa, the seismic energy must be dissipated through plastic engagement of parts of the structure, with wide and stable hysteresis cycles, for rare and very rare seismic events with a return period of about 500 years. The development of the hysteresis involves structural damage that have to be such as not to lead to the collapse of the structure in order to guarantee the protection of the life of those who occupy the building. The prediction of the behaviour of the structure in non-linear field for rare seismic events represents an aspect that only experimental research can describe in depth by developing new analytical models and innovative design philosophies. The execution of quasi-static tests can provide useful information in order to investigate the nonlinear behaviour of the members and the assemblages even if the forces or the displacement histories applied during the tests do not correspond exactly to the actions that occur during a real seismic event. The information obtained through these test procedures is however useful for calibrating analytical models and comparing the behaviour of structural components. The execution of tests on real scale structures is the best way to investigate the global behaviour of a structural system. For a more complete knowledge about the response in the dynamic field, the pseudo-dynamic tests represent a test protocol able to provide information of the structural response of a component or of a structure in a dynamic field through a static test. The main purpose of this work, developed within the FREEDAM research project financed by the European Community, is to develop an innovative beam-column connection. These innovative connections are equipped with an additional damper able to dissipating the energy deriving from destructive seismic events. The FREEDAM beam-column connection, through an appropriate design of the various components, is able to withstand frequent earthquakes and rare events without causing damage to the structural elements. The thesis is divided into six chapters. The Chapter 1 reports a brief introduction to the traditional beam-column connections, specifying the characteristics of the different types of connection and their influence on the behaviour of the Moment Resisting Frames. In the last part of the chapter the FREEDAM dissipative connection is presented, specifying its peculiarities and the benefits that its introduction into the structural system brings. The Chapter 2 is devoted to the description of the results obtained from an extensive experimental campaign developed at the STRENGTH laboratory of the University of Salerno, for the choice of material for the friction dampers used in the FREEDAM connections by carrying out a statistical characterization of the static and dynamic friction coefficients. The Chapter 3 collects the results of a further experimental campaign carried out at the University of Salerno laboratory and aimed at studying the tightening losses for pre-loading bolt systems equipped with different washers. In Chapter 4 a design procedure has been define for the FREEDAM beam-column connections, then this procedure has been applied in order to design two different types of connections that have been experimentally tested at the University of Coimbra Laboratory (PT). In the same chapter, the test layouts and the results obtained from the cyclic tests carried out on the nodes equipped with FREEDAM friction dampers have been described, finally developing models to the finite elements and comparing the experimental results with the computerized models. Finally, the Chapter 5 shows the results of the pseudo-dynamic tests carried out on a full-scale steel Moment Resistant Frame equipped in a first case with traditional full strength beam-column connections (dogbone) and in a second case equipped with the innovative connections proposed. These results have been compared to each other and with the results obtained from finite element models. [edited by Author]
XXXI ciclo
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Magalhães, Wladimir Capelo. "O uso do aço no projeto arquitetônico das estruturas aparente em edifícios de múltiplos andares: uma análise a partir dos projetos em aço construídos nos últimos 20 anos em São Paulo". Universidade Presbiteriana Mackenzie, 2015. http://tede.mackenzie.br/jspui/handle/tede/392.
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Previous issue date: 2015-02-06Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
The use of steel structures as building system in multistory buildings is growing every year in Brazil. This evolution, though still slow compared to other countries, is possible thanks to the characteristics of steel and the manufacturing process and production of steel structures. This research paper presents an analysis the use of steel structures in multistory buildings constructed in Sao Paulo in the last 20 years, showing how the use of metal structures was essential to solve the specific problems of each challenge. For this it was essential to understand how metal structures historically evolved since the eighteenth century. From this historical survey, it was possible to establish a series of conditions in the specific use of steel structures that provided its evolution. In addition, there was a survey about the steel industry in Brazil, with an overview of their production, properties, advantages and limitations in order to understand how these characteristics are reflected in the construction of multistory buildings. In the project analysis, seven works were chosen in São Paulo who used the apparent steel structure as the main construction system so that the design adopted confirm structural solutions proposed by architects. To support the analysis, were considered graphics, photos, interviews and three-dimensional electronic models that facilitate the understanding of the structure and elucidate the importance of the use of metal structures. With the results, it was possible to define a set of constraints and determinants of the use of steel in construction that must be considered in the development of architectural design.
O uso das estruturas metálicas como sistema construtivo nas edificações de múltiplos andares vem crescendo a cada ano no Brasil. Essa evolução, embora ainda lenta em comparação a outros países, se dá graças a uma série de características próprias do aço e do processo de fabricação e de produção das estruturas metálicas. Esse trabalho de pesquisa apresenta uma análise do uso das estruturas em aço no projeto de edifícios de múltiplos andares construídos em São Paulo nos últimos 20 anos, evidenciando como o emprego das estruturas metálicas foi essencial para resolver os problemas projetuais específicos de cada obra apresentada. Para isso, foi fundamental compreender como as estruturas metálicas evoluíram historicamente na construção civil desde o século XVIII, pois a partir desse levantamento histórico, foi possível pontuar uma série de condicionantes do uso das estruturas em aço que proporcionaram a sua evolução como sistema construtivo na forma como se apresenta hoje. Além disso, foi realizado um levantamento a respeito da indústria do aço no Brasil, traçando um panorama da sua produção, propriedades, vantagens e limitações a fim de compreender como essas características se refletem nos condicionantes e determinantes do aço na construção de edifícios de múltiplos andares. Como metodologia de análise, foram escolhidas sete obras na cidade de São Paulo que utilizaram a estrutura metálica aparente em aço como principal sistema construtivo, de forma que a linguagem adotada evidenciasse as soluções estruturais propostas pelos arquitetos. Para apoiar a análise, foram considerados desenhos, fotos, entrevistas e maquetes eletrônicas tridimensionais que facilitassem a compreensão da estrutura e elucidassem a importância do emprego das estruturas metálicas. Com os resultados obtidos, foi possível definir um conjunto de condicionantes e determinantes do uso do aço que deve ser considerado no desenvolvimento do projeto arquitetônico.
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Machado, Rafael Tamanini. "Análise da viabilidade econômica do projeto estrutural de edifícios de múltiplos andares com estrutura de aço". Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-23102012-095547/.
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O presente estudo traz uma revisão bibliográfica dos sistemas estruturais, da estabilidade e análise estrutural de edifícios de múltiplos andares com estrutura de aço e, ainda, do emprego de elementos mistos aço e concreto nesses sistemas, com ênfase às vigas mistas. É aplicável a duas áreas, a saber: acadêmica e prática. Na área acadêmica, contribui com informações que permitem iniciar linhas de pesquisas para diversos assuntos. Na área prática, através de exemplos, contribui com a análise da viabilidade do processo construtivo e estrutural. E por meio de instruções mínimas, contribui para o desenvolvimento de projetos de estruturas metálicas. A referida pesquisa é embasada na ABNT NBR 8800:2008 e, quando indispensável, nas normas ANSI/AISC 360-10 e EN 1994-1-1:2004.The concerned study brings a literature review of structural systems, stability and structural analysis of multistory buildings with steel structures and also the use of steel-concrete composite elements in those systems, with emphasis on composite beams. It applies to two subjects, namely: academic and practical. In academics, it contributes with informations that allows you to start several lines of research. In the practice, through examples, it contributes with the assessment of the viability of the construction and structural process. And using minimal instructions, it contributes to the development of steel structure projects. The related research is based on the ABNT NBR 8800:2008 and, when necessary, on ANSI/AISC 360-10 and EN 1994-1-1:2004.
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MEENA, RAHUL KUMAR. "EFFECTS OF BRACING SYSTEM ON MULTISTORYED STEEL BUILDING". Thesis, 2018. http://dspace.dtu.ac.in:8080/jspui/handle/repository/16202.
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In recent years, steel construction has shifted from moment-resisting frames to concentric braced frames in regions of highly seismic prone area. Bracing element in structural system by providing more stiffness plays a vital role in structural behaviour to resist earthquake forces. Concentric bracing is one of the most common lateral load resistant systems in building frames due to their manufacturing simplicity and economy. In this work, different types of bracing (X bracing, Inverted V bracing, K bracing, V bracing, Forward bracing, Backward bracing ) have been analysed and comparison has been made on the basis of maximum lateral displacement at each floor level due to seismic and wind loading. The main parameters considered to compare the seismic performance of buildings were bending moment, shear force, story drift, storey shear and concluded that the braced building of the storey drift decreases as compared to the unbraced building which indicates that the overall response of the building decreases, the displacement of the building decreases depending upon the different bracing system employed and the bracing sizes. In the present study, a 20 storey steel frame structure is analysed. For this purpose, seven different models were generated by changing the bracing system in steel frame and analysed for wind and seismic forces. It may be concluded from this study that bracing element will have very important effect on structural behaviour under seismic loading. Most suitable bracing system is Backward bracing system. Lateral displacement at top floor is reduced approximately 50% for Backward braced in frame structure compared to without bracing system.
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Pratheek, Bellam, i Rishit kar. "Seismic Design of Multistoried and Multi Bay Steel Building Frame". Thesis, 2013. http://ethesis.nitrkl.ac.in/5269/1/109CE0454.pdf.
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The seismic design of building frame presented in this project is based on IS 1893-2002 and IS 800 .The aim of the present work is to analyze a multistory and multi bay (G+5) moment resisting building frame for earthquake forces following IS 1893 and then design it as per IS 800:2007 .The frame consists of six story’s and has three bays in horizontal direction and five bays in lateral direction. The selection of arbitrary sections have been done following a standard procedure. The two methods that have been used for analysis are Equivalent static load method and Response Spectrum method .A comparative study of the results obtained from both these methods have been made in terms of story displacement ,inter story drift and base shear . The frame has also been further checked for P-∆ analysis and required correction in moments have been done following IBC code .Then the steel moment resisting frame has been designed following IS-800:2007 based on these methods of analysis. In the process of design the section has undergone numerous iterations till all the criteria mentioned in the IS 800 have been satisfied. The designed frame was again analyzed and results were compared in terms of sections used. The cost efficiency of both the methods have been compared .Finally the design of connection of an interior joint and an exterior joint of the frame have been done and the calculations have been shown. Also the design of the foundation which consists of the base plate has been done according to IS 800:2007.Relevant calculations have been shown and the figures have been drawn. The software used for analysis and design is STAAD PRO .Both during design and analysis sufficient manual calculations have been made and compared.
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Mirvalad, Seyed Javad. "Robustness and Retrofit Strategies for Seismically-Designed Multistory Steel Frame Buildings Prone to Progressive Collapse". Thesis, 2013. http://spectrum.library.concordia.ca/977095/1/Mirvalad_MASc_S2013.pdf.
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Unlike seismic engineering that attracted the attention of researchers, designers, and code developers for decades, the phenomenon of progressive collapse of structures still needs considerable amount of investigation. The main motivation for this study is to investigate the vulnerability of seismic code designed multistory steel moment resisting frame buildings to progressive collapse, and to propose retrofit solutions for those buildings that show to be prone to progressive collapse.
The studied buildings had 5, 10, and 15 stories (representing low-rise, medium-rise, and high-rise buildings), where each building was designed for three seismic zones (representing low, medium, and high seismicity). All studied buildings have a 3-bays x 6-bays rectangular plan; each bay has a span of 6 meters. Alternate Path Method (APM) recommended by GSA 2003 guidelines is adopted to evaluate the robustness of the buildings against progressive collapse. Three-dimensional models of the buildings are built using the Extreme Loading for Structures (ELS) software, where nonlinear static and nonlinear dynamic time history analysis are conducted for six different column removal scenarios for each building.
The nonlinear dynamic analyses showed that buildings designed for low seismicity do not possess sufficient resistance against column removal cases, thus need to be retrofitted to safeguard against the possibility of their progressive collapse. Consequently, two retrofit methods using top beams grid system and top gravity truss system are proposed for buildings in low seismic zones in order to enhance their robustness against progressive collapse. The nonlinear static and nonlinear dynamic analyses of the retrofitted buildings using the ELS software showed the effectiveness of the proposed retrofit systems in mitigating progressive collapse.
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LUO, MING-FENG, i 羅明峰. "On the seismic resistant analysis of multistory steel buildings with consideration of panel zone effect". Thesis, 1989. http://ndltd.ncl.edu.tw/handle/70220222992209051776.
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Cavallaro, Giovanni Ferrante. "Pseudo-dynamic tests and numerical analysis of free from damage Multistorey Steel Buildings with innovative connections". Doctoral thesis, 2019. http://hdl.handle.net/10316/95020.
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One of the most widespread structural systems is represented by Moment Resisting Frames (MRFs). This structural system is made up of frames capable of resisting seismic actions through predominantly flexural tension states. The stiffness and lateral resistance of the system depend on the flexural strength of the members and the type of connection, while the development of the plastic hinges guarantee the dissipation of the seismic input energy. The location of the dissipative zones varies according to the design approach adopted, typically they develop in beams, columns and connections. The most widespread design philosophy is to have strong columns, weak beams and full-strength rigid connections with complete resistance restoration, in this way all the seismic energy tends to be dissipated by the plastic hinges at the ends of the beams and at the base of the columns of the first level.
In order to overcome the traditional design approach, the present research work introduces a new type of beam-column connection capable of exhibiting a remarkable rigidity in service conditions (SLE) and able to exhibit a remarkable dissipative capacity when a rare seismic event occurs. The codes currently in force provide that for seismic events characterized by a period of return comparable with the useful life of the construction (frequent or occasional events) the structures remain in the elastic field ensuring that the seismic energy is completely dissipated through viscous damping. Vice versa, the seismic energy must be dissipated through plastic engagement of parts of the Pseudo dynamic tests and numerical analysis of free from damage multistorey steel buildings with innovative connections structure, with wide and stable hysteresis cycles, for rare and very rare seismic events with a return period of about 500 years. The development of the hysteresis involves structural damage that have to be such as not to lead to the collapse of the structure in order to guarantee the protection of the life of those who occupy the building. The prediction of the behaviour of the structure in non-linear field for rare seismic events represents an aspect that only experimental research can describe in depth by developing new analytical models and innovative design philosophies. The execution of quasi-static tests can provide useful information in order to investigate the nonlinear behaviour of the members and the assemblages even if the forces or the displacement histories applied during the tests do not correspond exactly to the actions that occur during a real seismic event. The information obtained through these test procedures is however useful for calibrating analytical models and comparing the behaviour of structural components. The execution of tests on real scale structures is the best way to investigate the global behaviour of a structural system. For a more complete knowledge about the response in the dynamic field, the pseudo-dynamic tests represent a test protocol able to provide information of the structural response of a component or of a structure in a dynamic field through a static test.
The main purpose of this work, developed within the FREEDAM research project financed by the European Community, is to develop an innovative beam-column connection. These innovative connections are equipped with an additional damper able to dissipate the energy deriving from destructive seismic events. The FREEDAM beam-column connection, through an appropriate design of the various components, is able to withstand frequent earthquakes and rare events without causing damage to the structural elements.
Książki na temat "MULTISTORYED STEEL BUILDING"
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Steel-concrete structures for multistorey buildings. Amsterdam: Elsevier, 1991.
Znajdź pełny tekst źródłaCzęści książek na temat "MULTISTORYED STEEL BUILDING"
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Abu-Saba, Elias G. "Multistory Buildings: Plastic Design". W Design of Steel Structures, 375–88. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-2079-5_14.
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Tylek, Izabela Alicja. "Random Initial Twist Angle of Steel Multistory Building Frames". W Design, Fabrication and Economy of Metal Structures, 357–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36691-8_54.
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Patel, Parthav P., i Digesh D. Joshi. "Strengthening of Multistory Steel Moment-Resisting Frame Building by Providing Chevron Bracings". W Lecture Notes in Civil Engineering, 319–26. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8496-8_40.
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Bilyk, Artem, Roman Kurashev, Bassam Burgan i Anna Khmelnitska. "First Ukrainian Cost Study Experience of Commercial Multistory Buildings with Concrete and Steel Frame". W Design, Fabrication and Economy of Metal Structures, 511–17. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36691-8_77.
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"Multistorey buildings". W Steel Structures, 129–73. CRC Press, 2017. http://dx.doi.org/10.1201/9781315274966-7.
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"Multistorey buildings, simple design to EC3". W Steel Structures, 174–91. CRC Press, 2017. http://dx.doi.org/10.1201/9781315274966-8.
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Clifton, G., M. Bruneau, G. MacRae, R. Leon i A. Fussell. "Multistorey steel framed building damage from the Christchurch earthquake series of 2010/2011". W Behaviour of Steel Structures in Seismic Areas, 15–24. CRC Press, 2011. http://dx.doi.org/10.1201/b11396-4.
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"Multistorey steel framed building damage from the Christchurch earthquake series of 2010/2011". W Behaviour of Steel Structures in Seismic Areas, 35–44. CRC Press, 2012. http://dx.doi.org/10.1201/b11396-6.
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"Robustness of seismic resistant multistory frame buildings in case of accidental column loss scenarios". W Behaviour of Steel Structures in Seismic Areas, 759–64. CRC Press, 2009. http://dx.doi.org/10.1201/9780203861592-125.
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Dinu, F., i D. Dubina. "Robustness of seismic resistant multistory frame buildings in case of accidental column loss scenarios". W Behaviour of Steel Structures in Seismic Areas. CRC Press, 2009. http://dx.doi.org/10.1201/9780203861592.ch107.
Pełny tekst źródłaStreszczenia konferencji na temat "MULTISTORYED STEEL BUILDING"
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Sleiman, Martin, Mikael Johansson i Anders Claesson. "Timber and concrete hybrid superstructures – a potential step towards sustainability?" W IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/ghent.2021.1280.
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<p>Timber is a renewable material having a lower carbon-footprint than conventional concrete and steel. Hence, timber would be a good choice of material to minimize the carbon-footprint of a building. Superstructures of pure timber are, however, cumbersome to use for multistory purposes</p><p>– timber is simply too light to stabilize the building properly. Hence, the interest in timber and concrete/steel hybrid structures is increasing. The purpose of this paper is to investigate the potential savings of CO2 emissions in the design of a multistory residential building - this by using timber and concrete in its superstructure instead of only concrete and concurrently ensuring global stability. The study is performed on an existing 17-story residential building with a pure concrete superstructure: The results indicate that the carbon-footprint of the building in question could have been reduced by 48% if a hybrid superstructure had been used instead.</p>
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Sleiman, Martin, Mikael Johansson i Anders Claesson. "Timber and concrete hybrid superstructures – a potential step towards sustainability?" W IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/ghent.2021.1280.
Pełny tekst źródłaStreszczenie:
<p>Timber is a renewable material having a lower carbon-footprint than conventional concrete and steel. Hence, timber would be a good choice of material to minimize the carbon-footprint of a building. Superstructures of pure timber are, however, cumbersome to use for multistory purposes</p><p>– timber is simply too light to stabilize the building properly. Hence, the interest in timber and concrete/steel hybrid structures is increasing. The purpose of this paper is to investigate the potential savings of CO2 emissions in the design of a multistory residential building - this by using timber and concrete in its superstructure instead of only concrete and concurrently ensuring global stability. The study is performed on an existing 17-story residential building with a pure concrete superstructure: The results indicate that the carbon-footprint of the building in question could have been reduced by 48% if a hybrid superstructure had been used instead.</p>
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Naeim, Farzad, Konsantinos Skliros i Andrei M. Reinhorn. "Influence of Hysteretic Deteriorations on Seismic Response of Multistory Steel Frame Buildings". W Structures Congress 2000. Reston, VA: American Society of Civil Engineers, 2000. http://dx.doi.org/10.1061/40492(2000)107.
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Kadhum, Ali Kifah, i Khattab Saleem Abdul-Razzaq. "Effect of seismic load on steel frame multistory building from economical point of view". W 2ND INTERNATIONAL CONFERENCE ON MATERIALS ENGINEERING & SCIENCE (IConMEAS 2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0000052.
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Allameh, Seyed M., Alexis Eckart, Jose Fonseca Lopez, Roger Miller, Avery Lenihan i Hadi Allameh. "On the Micromechanical Properties of Conventional and 3D-Printed Rebar". W ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-94651.
Pełny tekst źródłaStreszczenie:
Abstract This study is focused on the micromechanical properties of conventional rebar and how they could be used for comparison with the 3D printed rebar tensile and fatigue properties. Current trends in additive manufacturing hint at the eventual use of 3D printing in the construction of homes and office buildings. Nowadays, 3D printing of homes is being achieved on an experimental basis by depositing extruded concrete in layers up to the ceiling to make walls, and then building a roof on top of the walls by conventional methods. This practice is not suitable to make bridges, multistory office buildings or structures that substantially experience tensile stresses. It is necessary to incorporate steel rebar in otherwise easily printed concrete structures. One way to achieve this is direct welding of steel into concrete by mounting a welder gun on to the 3D printing head and conducting 3D welding of the rebar. This has been accomplished and mild steel weldments have been 3D welded onto concrete. To make it acceptable for construction, the reliability of such printed rebar must be investigated. Early results of microscale tensile and fatigue testing on steel weldments made by additive manufacturing show desirable mechanical properties. However, the comparison has been made with macroscale tensile and fatigue properties of conventional rebar. To ascertain the reliability of 3D printed rebar welded onto concrete, it is essential to conduct a comparison with the micromechanical properties of conventional mild steel rebar. To achieve this, micro-specimens were machined off thick and thin conventional rebar in various orientations including along and across the longitudinal axis of the rebar and at different depths from the surface to investigate their micromechanical properties. Dog-bone shaped specimens 1000-micron in gage length with square gage cross sections measuring 200-micron × 200-micron were extracted from the surface as well as from the center of thick and thin rebar rods using a HAAS CNC. Samples were polished to a mirror finish and then tested in an Instron Electropulse E1000 load frame equipped with microgrippers that allowed monotonic and cyclic loading of the samples at a frequency of 50Hz. The results of micromechanical testing obtained from conventional rebar are compared with the those obtained from testing micro-specimens machined from mild steel weldments deposited by 3D welding on ceramics. The results demonstrate the reliability of mild streel rebar printed by 3D welding onto concrete. The implications of the findings on the use of additive manufacturing in 3D printing reinforced concrete and how it will impact the construction industry are discussed.
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Tripepi, Concetta, Francesco Nucera, Lawrence A. Bergman, D. Michael McFarland i Alexander F. Vakakis. "Application of Targeted Energy Transfer (TET) Techniques to the Seismic Protection of a Small Scale Multistorey Eccentric Steel Structure". W ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48923.
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The aim of this work is to show that is possible to apply the Nonlinear Energy Sink (NES) concept to protect seismically excited eccentric steel structures through Targeted Energy Transfer (TET). We consider, as the primary (linear) system, a small-scale four-storey unsymmetrical-plan building, modeled as a twelve-degree-of-freedom-system, with floors sufficiently rigid so that the frame can reasonably be considered as shear-type and with additional eccentric mass for each floor. To the primary (linear) system, we connect two NESs, which are non-smooth and precisely the vibro-impact devices (VI-NESs), both placed on the top floor. In order to analyze the dynamics of the controlled model (structure with VI-NESs), we study the performance and the robustness of the augmented structure excited by a set of Eurocode8 (EC8) spectrum compliant earthquakes. Our purpose is to check the effectiveness of the VI-NESs to different earthquake excitations, that is, testing that an optimal VI-NES setting computed for a specific earthquake will still produce satisfactory results for the other earthquakes. We show that the nonlinear attachments are capable of engaging in transient resonance with linear modes at arbitrary frequencies by generating a one-way irreversible (on the average) transfer of the energy of vibration from the primary structure to local attachment. There the energy is confined and locally dissipated without “spreading” back to the main structure because of the instantaneous internal resonance. As energy decreases due to damping the conditions for Transient Resonance Capture (TRC) fail and escape from resonance capture takes place.
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Gorbunov, Maksym. "Design of a Multi-Use, Highly Efficient Intermodal Container System". W ASME 2013 Rail Transportation Division Fall Technical Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/rtdf2013-4709.
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This paper details the design of a shipping container concept with a purpose of being not only highly efficient in transport but also after arrival. In order to reduce mass while also increasing the ability to carry heavier loads, Lightweight structures and materials are employed instead of simple steels or cast iron used in current designs. The second goal of the design was to create a weld free structure that can be easily assembled and disassembled without the need for special labor and skills saving time, space and resources when shipping empty container or storing containers that are not in use. Shipping containers often clutter construction sites and temporary establishments like concerts and flea markets. By being able to break down and efficiently store containers businesses in charge of these temporary establishments can save valuable real estate and run much more efficiently. Another design feature is creating an entirely modular system. Each container is made from completely interchangeable parts that can be swapped in and out for ones that have different function like container variations that provides insulation or active temperature or humidity control for temperature sensitive products or high security configurations for hazardous materials or expensive goods. In order to provide such interchangeability, the frame is designed to be strong and rigid enough to be able to handle the required loads without relying on wall plates. The combination of these design points leads to a transportation system that can not only be deployed using existing intermodal infrastructure but can serve a secondary purpose once it arrives at its destination. Because the containers are modular and highly versatile, they can be assembled into large floor space, multistory structures. Containers and trailers normally used as office space at construction sites are cramped, uncomfortable and very unsightly. Using this system, large two story office space of several thousand square feet can be erected using no more than a dozen containers. The modular walls can be used to swap in ceiling or wall panels that let in natural light, harness solar power or allow plumbing systems, electrical wiring, thermal insulation or ventilation. Because of the weld-free design and ultra-lightweight components, structure assembly and disassembly is simple with unskilled labor and common tools. This is especially important because the most impactful application of this system could be in disaster relief. Single containers can be used as substitutes for single family homes and large container assemblies can be used to create anything kind of community use structure from shower clusters to temporary schools to dining halls to administrative buildings creating a sustainable temporary community.