Relevant bibliographies by topics / Earthquake resistant design Buildings Buckling (Mechanics)

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  2. Dissertations / Theses
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Academic literature on the topic 'Earthquake resistant design Buildings Buckling (Mechanics)'

Author: Grafiati
Published: 4 June 2021
Last updated: 19 February 2022

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Journal articles on the topic "Earthquake resistant design Buildings Buckling (Mechanics)"

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Zhou, Yun, Hetian Shao, Yongsheng Cao, and Eric M. Lui. "Application of buckling-restrained braces to earthquake-resistant design of buildings: A review." Engineering Structures 246 (November 2021): 112991. http://dx.doi.org/10.1016/j.engstruct.2021.112991.

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TAKEDA, HACHIRO, EIICHI WATANABE, and RYO KUNISHI. "INELASTIC REPETITIVE SHEAR AND FLEXURAL BUCKLING OF PLATE GIRDERS." International Journal of Structural Stability and Dynamics 04, no. 01 (March 2004): 105–24. http://dx.doi.org/10.1142/s021945540400115x.

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In the Great Hanshin–Awaji earthquake of 1995, the phenomena of repetitive inelastic buckling were observed in many steel girders including horizontal girders of portal steel piers on elevated highways. The authors have been interested in the ability of steel girders to dissipate the hysteretic plastic strain energy due to such repetitive buckling of steel girders for earthquake-resistance design. This paper is focused on the repetitive buckling behavior of eight steel plate girders under inelastic shear or the combined shear and bending due to a concentrated point load adopting two independent cyclic loading patterns. The model girders were selected considering the combined variations of flange thickness, flange width and depth-to-thickness ratio of the web. Good correlations were found between the results of tests and finite element analyses using shell elements considering the material and geometrical nonlinearities in the repetitive inelastic buckling behavior of plate girders.
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Krishna, T. G. N. C. Vamsi, V. Amani, P. S. Sunil Kumar*, CH Naveen Kumar, and M. Srinivas. "Dynamic Seismic Analysis and Design of R.C.C Multi Purpose Building (G+15) By using E-Tabs." International Journal of Innovative Technology and Exploring Engineering 10, no. 10 (August 30, 2021): 84–91. http://dx.doi.org/10.35940/ijitee.j9418.08101021.

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An earthquake is a sudden, rapid shaking of the earth caused by the breaking and shifting of rock beneath the earth’s surface. Earthquakes are among the most powerful events on earth, and their results can be terrifying. In0general for0design of tall0buildings both0wind as well0as earthquake0loads need0to be0considered. Governing0criteria for0carrying out0dynamic analyses0for earthquake0loads are different0from wind0loads. However many tall buildings are not so resistant in lateral loads due to earthquake. Reinforced concrete multi-storied buildings in India were for the first time subjected to a strong ground motion shaking in Bhuj earthquake. It has been concluded that the principal reasons of failure may be attributed to soft stories, floating columns, mass irregularities, poor quality of construction materials faulty construction methods, unstable earthquake response, soil and infrastructure, which were determined to cause damage to the attached structure. High-rise buildings are in high demand due to global urbanization and population growth, and high-rise buildings are likely to suffer the most damage from earthquakes. Since earthquake forces are irregular and unnatural in nature, engineering tools need to be sharpened to analyze the structure in the work of these forces. In this study, to understand the behaviour of structure located in seismic zones III for G+15 Multi-Purpose storey building model is considered for study. Performance of frame is studied through Response Spectrum analysis and comparison is made on shear force, storey drift, storey displacement and storey stiffness.
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Orellana, Miguel A., Sonia E. Ruiz, Juan Bojórquez, Alfredo Reyes-Salazar, and Edén Bojórquez. "Optimal load factors for earthquake-resistant design of buildings located at different types of soils." Journal of Building Engineering 34 (February 2021): 102026. http://dx.doi.org/10.1016/j.jobe.2020.102026.

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Baca, Victor, Juan Bojórquez, Edén Bojórquez, Herian Leyva, Alfredo Reyes-Salazar, Sonia E. Ruiz, Antonio Formisano, Leonardo Palemón, Robespierre Chávez, and Manuel Barraza. "Enhanced Seismic Structural Reliability on Reinforced Concrete Buildings by Using Buckling Restrained Braces." Shock and Vibration 2021 (February 8, 2021): 1–12. http://dx.doi.org/10.1155/2021/8816552.

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The control of vibrations and damage in traditional reinforced concrete (RC) buildings under earthquakes is a difficult task. It requires the use of innovative devices to enhance the seismic behavior of concrete buildings. In this paper, we design RC buildings with buckling restrained braces (BRBs) to achieve this objective. For this aim, three traditional RC framed structures with 3, 6, and 9 story levels are designed by using the well-known technique nondominated sorting genetic algorithm (NSGA-II) in order to reduce the cost and maximize the seismic performance. Then, equivalent RC buildings are designed but including buckling restrained braces. Both structural systems are subjected to several narrow-band ground motions recorded at soft soil sites of Mexico City scaled at different levels of intensities in terms of the spectral acceleration at first mode of vibration of the structure Sa(T1). Then, incremental dynamic analysis, seismic fragility, and structural reliability in terms of the maximum interstory drift are computed for all the buildings. For the three selected structures and the equivalent models with BRBs, it is concluded that the annual rate of exceedance is considerably reduced when BRBs are incorporated. For this reason, the structural reliability of the RC buildings with BRBs has a better behavior in comparison with the traditional reinforced concrete buildings. The use of BRBs is a good option to improve strength and seismic behavior and hence the structural reliability of RC buildings subjected to strong earthquake ground motions.
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Hong, Xiao-jian, and Ming Gu. "Probability model and solution on earthquake effects combination in along wind resistant design of tall-flexible buildings." Applied Mathematics and Mechanics 27, no. 5 (May 2006): 627–36. http://dx.doi.org/10.1007/s10483-006-0508-1.

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Wu, Huaxiao, Qinhua Wang, Nayan Deep Tiwari, and Dario De Domenico. "Comparison of Dynamic Responses of Parallel-Placed Adjacent High-Rise Buildings under Wind and Earthquake Excitations." Shock and Vibration 2021 (June 24, 2021): 1–14. http://dx.doi.org/10.1155/2021/6644158.

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Two parallel-placed adjacent high-rise buildings are often linked to each other through passive control devices for vibration mitigation purposes. The mitigation efficiency of these control devices mainly depends on the characteristics of relative dynamic responses, namely, opposite-sign and same-sign responses of the two buildings. The present research first identifies an opposite-sign response factor to estimate the time ratio of opposite-sign responses. Subsequently, a structure comprising two adjacent high-rise buildings (with different natural frequency ratios) subjected to both wind and earthquake excitations is analyzed. Wind-induced responses are evaluated based on wind loads obtained from wind tunnel tests, while earthquake responses are determined through a suite of 44 natural ground-motion records. The results indicate that opposite-sign factors of the displacement, velocity, and acceleration responses under wind loads, especially at across-wind direction, are larger than those under earthquake excitations, and opposite-sign response factors under wind loads are insensitive to variation of the natural frequency ratio of the two adjacent buildings compared with those under earthquake excitations. The conclusions of this research may be helpful for wind-resistant and antiseismic design of parallel-placed adjacent high-rise buildings.
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Oktavianus, Yusak, Helen Goldsworthy, Emad Gad, and Saman Fernando. "The Effect of Consecutive Earthquakes on a Composite Structure Utilising RBRFs." Key Engineering Materials 763 (February 2018): 854–63. http://dx.doi.org/10.4028/www.scientific.net/kem.763.854.

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Low-damage technologies have been developed in recent years which limit the damage imposed on structural elements when a building is subjected to a very rare earthquake event. This has been achieved by a capacity design approach applied to the connections in which the ductile part of the connections yields and all other structural elements remain elastic. Examples of low-damage connections are the sliding hinge joint in steel buildings and variations associated with this, and a combination of a post-tensioning system and mild steel dissipater in precast concrete and timber buildings. A system developed by the authors uses replaceable buckling restrained fuses (RBRFs) that do not require a post-tensioning system to be used conjointly. This system has been studied both experimentally and numerically. This paper considers the use of RBRFs as an energy dissipation device installed at beam-column connections in composite moment-resistant frames. These RBRFs could be replaced after a major event, and hence would cause little disruption. A 2D building frame has been modelled for a case study and its behaviour under 100-year, 500-year and 2500-year return period earthquake events has been summarised. A consecutive earthquake with a return period of 500 years or 2500 years has been applied to the building following both 500-year and 2500-year return period earthquake events. This study was performed since there is a possibility that the consecutive earthquake would occur prior to the replacement of the RBRFs. The results show that the building could still sustain the consecutive earthquakes with little additional residual displacement.
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McCormick, Jason, Reginald DesRoches, Davide Fugazza, and Ferdinando Auricchio. "Seismic Vibration Control Using Superelastic Shape Memory Alloys." Journal of Engineering Materials and Technology 128, no. 3 (April 3, 2006): 294–301. http://dx.doi.org/10.1115/1.2203109.

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Superelastic NiTi shape memory alloy (SMA) wires and bars are studied to determine their damping and recentering capability for applications in the structural control of buildings subjected to earthquake loadings. These studies improve the knowledge base in regard to the use of SMAs in seismic design and retrofit of structures. The results show that the damping properties of austenitic SMAs are generally low. However, the residual strain obtained after loading to 6% strain is typically <0.75%. In general, it is shown that large diameters bars perform as well as wire specimens used in non-civil-engineering applications. The results of a small-scale shake table test are then presented as a proof of concept study of a SMA cross-bracing system. These results are verified through analytical nonlinear time history analysis. Finally, a three-story steel frame implementing either a traditional steel buckling-allowed bracing system or a SMA bracing system is analyzed analytically to determine if there is an advantage to using a SMA bracing system. The results show that the SMA braces improve the response of the braced frames.
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Minagawa, Keisuke, and Satoshi Fujita. "Fundamental Study on the Super-Long-Period Active Isolation System." Journal of Pressure Vessel Technology 128, no. 4 (December 14, 2005): 502–7. http://dx.doi.org/10.1115/1.2349555.

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Background: Since the Hanshin-Awaji Earthquake Disaster, the number of isolated structures has been greatly increased. The natural period of the isolation system is designed around 3s, because the predominate period of observed seismic waves is usually 0.1 to 1s. However, relatively long period seismic waves have been observed in various earthquakes, and the resonances of long-period structures, such as high-rise buildings, during earthquakes have been reported at the same time. Therefore the natural period needs to be extended. When extending the natural period of the isolated structure using rubber bearings, its stiffness needs to be reduced. It is more difficult to extend the natural period of the isolation system than the conventional system because of a buckling problem. Therefore we propose a super-long-period active seismic isolation system as a new method for extending the natural period of the isolated structure. This system consists of rubber bearings and hydraulic actuators. Method of approach: In this study, we designed a control system by using the model matching method. This is one of the classical control system design methods. Additionally we applied a genetic algorithm (GA) to select parameters of a transfer function. Results: The system designed by applying the GA could reduce response acceleration sufficiently compared with the input acceleration. Further waveforms of the response acceleration retain almost straight forwardly, so this indicates good performance of isolation. Therefore, application of super-long-period active isolation is an effective technique to improve the performance of isolation. However, the control forces are big, and the system needs 95.5×106N for the El Centro NS wave as control force. This force is equivalent to 21 actuators that are used in a large shake table, so there are few possibilities to realize active isolation. Conclusion: The required control force of hydraulic actuators is big, although the super-long-period active isolation system possesses good performance of isolation compared with the conventional isolation system. Therefore it is difficult to apply this isolation system to the real structure. However, the problem regarding requirements of the actuator should be solved because of the realization of an active seismic isolation system. Therefore, we will examine for the parameters of the system and semi-active isolation system.
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Dissertations / Theses on the topic "Earthquake resistant design Buildings Buckling (Mechanics)"

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Yung, Willy Chi Wai. "Innovative energy dissipating system for earthquake design and retrofit of timber structures." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30128.

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This thesis presents the results obtained from a preliminary investigation into the potential application of the friction damping concept to wood structures to improve their seismic response. Sliding friction devices which contain heavy duty brake lining pads have been proposed in order to enhance a wood structure's seismic performance. The devices are mounted onto a structure's shearwalls to dissipate seismic energy input during the wall's deformation in an earthquake. Prototypes of the four friction damping devices were tested to examine their hysteretic behaviour. Conventional full scale, 2.44 x 2.44 m (8 x 8 ft) timber shearwalls, typical of ones used in residential and light-commercial building applications, and ones retrofitted with the friction damping devices were tested on a shake table. Three set of tests were conducted. They involved loading the walls under unidirectional racking, static-cyclic and simulated earthquake loads. Test results from the two types of shearwalls were compared against each other and against the findings from the computer programs SADT and FRICWALL. SADT is a finite elements program which computes the load-deformation behaviour of shearwalls. FRICWALL is an inelastic time-history dynamic model which computes the response time-history of a shearwall under a simulated seismic event. The cyclic tests of the friction damping devices showed that they exhibited very stable and non-deteriorating hysteretic behaviour. The shake table tests of the full scale timber shearwalls showed that the friction damped walls were stiffer, can sustain an average of 23.7 % higher racking load and dissipate an average of 42.9 % more energy than the conventional ones before a ductile failure. Failure in the conventional walls was brittle. These results were in agreement with the SADT findings. Under slow cyclic loads, they dissipated more energy, but because their overall hysteretic behaviour was still pinched, they were just as inefficient as the conventional walls at dissipating energy. On the average, their seismic performance was only marginally better than that of the conventional wall, with an average drop of 9.6 % in peak wall deflection. This is far short of the average of 29.5 % computed by FRICWALL. Detailed analysis of the results show that due to bending in the framing members of the shearwall, the load necessary to cause slippage of the friction devices was not achieved until wall deflections in the order of 25.4 mm (1.0 in) was reached. Since only at the peak or near-peak excitation levels of an earthquake did shearwall deflections surpass this magnitude, the devices were not able to contribute to the energy dissipation of the shearwalls during the majority portion of a seismic event.
Applied Science, Faculty of
Civil Engineering, Department of
Graduate
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2

Tinker, John Andrew. "Development of an Ultra-Lightweight Buckling-Restrained Brace Using Analytical and Numerical Methods." PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/447.

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An ultra-lightweight buckling-restrained brace (ULWBRB) is developed using a highly ductile aluminum core and FRP restrainer. Utilization of lightweight materials results in a BRB that is 25% the weight of traditional mortar-filled tube varieties allowing easy installation in small to medium sized buildings requiring seismic retrofit without the need for heavy equipment. Construction utilizes commonly stocked materials able to be customized for required strength, drift, and geometry limitations. Analytical single degree of freedom (SDOF) and Euler buckling models are compared with published equations to determine the required restrainer stiffness (RRS). SDOF models yield RRS values 200% higher than the Euler model. Applied end moments due to frame deformation are incorporated into a modified design method that gives RRS values 50% higher than Euler model without eccentricity. RRS is provided using a bundled and wrapped FRP tube configuration using a developed shear flow method considering composite action. Uniaxial low-cycle fatigue (LCF) testing of a 6061-T6 candidate alloy provides data for a constitutive model using combined kinematic-isotropic hardening. LCF testing of round short gage coupons indicates the candidate alloy is capable of stable cycling to 2%, 3%, and 4% total strain with excellent ductility. Early fracture of specimens at 24, 18, and 11 cycles, respectively, also indicates that other candidate alloys should be examined for improved fatigue life. However, inconsistency is noted between similar tests of 6061-T6 that were able to achieve up to 76 cycles at 2.5% total strain. ULWBRB FEA models loaded monotonically consistently give higher RRS values as compared to the analytical methods. This is due to assignment of initial imperfections, longer more realistic unbraced length, higher axial loads achieved through the post-yield region, and plastic hinging potential. Cyclic simulations of braces with the same RRS values are also able to achieve reliable and stable hysteretic behavior through 21 cycles. If a less stiff restrainer is used, cumulative energy dissipation potential is reduced considerably due to pinched hysteresis loops and strain ratcheting. Applied end moments are found to have a linear effect on the RRS that can be modeled by superposition of the buckling effect plus end moment.
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Prinz, Gary S. "Effect of Beam Splicing on Seismic Response of Buckling-Restrained Braced Frames." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2126.pdf.

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Bazáez, Gallardo Ramiro Andrés Gabriel. "Achieving Operational Seismic Performance of RC Bridge Bents Retrofitted with Buckling-Restrained Braces." PDXScholar, 2017. https://pdxscholar.library.pdx.edu/open_access_etds/3476.

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Typical reinforced concrete (RC) bridges built prior to 1970 were designed with minimum seismic consideration, leaving numerous bridges highly susceptible to damage following an earthquake. In order to improve the seismic behavior of substandard RC bridges, this study presents the seismic performance of reinforced concrete bridge bents retrofitted and repaired using Buckling-Restrained Braces (BRBs) while considering subduction zone earthquake demands. In order to reflect displacement demands from subduction ground motions, research studies were conducted to develop quasi-static loading protocols and then investigate their effect on structural bridge damage. Results suggested that subduction loading protocols may reduce the displacement ductility capacity of RC bridge columns and change their failure mode. The cyclic performance of reinforced concrete bridge bents retrofitted and repaired using BRBs was experimentally evaluated using large-scale specimens and the developed loading histories. Three BRB specimens were evaluated with the aim of assessing the influence of these components on the overall performance of the retrofitted and repaired bents. Additionally, subassemblage tests were conducted in an effort to study the response of these elements and to allow for refined nonlinear characterization in the analysis of the retrofitted and repaired systems. The results of the large-scale experiments and analytical studies successfully demonstrated the effectiveness of utilizing buckling-restrained braces for achieving high displacement ductility of the retrofitted and repaired structures, while also controlling the damage of the existing vulnerable reinforced concrete bent up to an operational performance level.
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Fahnestock, Larry Alan. "Analytical and large-scale experimental studies of earthquake-resistant buckling-restrained braced frame systems /." Diss., 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3215835.

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Seo, Choung-Yeol. "Influence of ground motion characteristics and structural parameters on seismic responses of SDOF systems /." Diss., 2005. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3167075.

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Fan, Chih-Ping. "Seismic analysis, behavior, and retrofit of non-ductile reinforced concrete frame buildings with viscoelastic dampers /." Diss., 1998. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:9919143.

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Books on the topic "Earthquake resistant design Buildings Buckling (Mechanics)"

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Takewaki, Izuru. Building control with passive dampers: Optimal performance-based design for earthquakes. Singapore: J. Wiley & Sons (Asia), 2009.

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Takewaki, Izuru. Building control with passive dampers. Singapore: J. Wiley & Sons (Asia), 2010.

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Takewaki, Izuru. Building control with passive dampers. Singapore: J. Wiley & Sons (Asia), 2010.

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Rete dei laboratori universitari di ingegneria sismica, ed. Tecnologie per l'isolamento ed il controllo di strutture ed infrastrutture: Atti del seminario conclusivo della linea 7 del progetto di ricerca DPC-ReLUIS 2005-2008. Firenze: Polistampa, 2009.

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Committee, SAC Joint Venture Guidelines Development. Recommended postearthquake evaluation and repair criteria for welded steel moment-frame buildings. [Sacramento, Calif.]: SAC Joint Venture, 2000.

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United States. Federal Emergency Management Agency, ed. Recommended postearthquake evaluation and repair criteria for welded steel moment-frame buildings. [Sacramento, Calif.]: SAC Joint Venture, 2000.

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SAC Joint Venture. Guidelines Development Committee. Recommended postearthquake evaluation and repair criteria for welded steel moment-frame buildings. [Sacramento, Calif.]: SAC Joint Venture, 2000.

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Olson, Craig D. Performance of frictionally damped braced frames. 1987.

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Takewaki, Izuru. Building Control with Passive Dampers: Optimal Performance-Based Design for Earthquakes. Wiley & Sons, Incorporated, John, 2011.

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(Editor), Mustafa Özder Erdik, Mehmet Çelebi (Editor), Vladimir Mihailov (Editor), and Nurdan Apaydin (Editor), eds. Strong Motion Instrumentation for Civil Engineering Structures (NATO Science Series E:). Springer, 2001.

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Conference papers on the topic "Earthquake resistant design Buildings Buckling (Mechanics)"

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Heidari, Alireza, Vera V. Galishnikova, and Iradj Mahmoudzadeh Kani. "A Protective Structure, Saver During Structural Collapse." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-85447.

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In this paper a new protective structure is presented to save human life, in the case of building collapse, caused by an earthquake, a terrorist attack or other catastrophic events. It is well-known that the number of casualties after major earthquakes during night time far exceeds the corresponding number of those events of similar magnitudes occurring that of the day times. The life-saver device discussed here is a bolted-moment-resisting 3-D steel frame that encapsulates a single or double-bed sleeping area at home. The frame consists of a number of beam-columns of angle cross-section, bolted together by gusset plates and topped with a thin steel plate or a rectangular rebar mesh. The collapse of walls and ceilings of the building on top of this structure will result in large plastic deformations in various sections of the frame, whereby the energy of the falling debris is dissipated. Despite these large deflections, no harm is inflicted upon the people sleeping inside the frame. The physical behavior of this new life-saving device, under real situation of structural collapse, is modeled in the ANSYS LS-DYNA software. Combined nonlinear analysis of the frame is performed under dynamic loads developed. It is assumed that the angle members of the frame are stiffened by welding triangular gusset plates at appropriate intervals along their length, so that they behave in a compact manner without local buckling. The discussion of this phenomenon is the subject of another paper and is not presented here. The behavior of the protective structure shows that the people resting or taking refuge inside, will be safe in the event of the collapse of the building. Austenitic twinning induced plasticity (TWIP) steel which has a good combination of both strength and ductility also has been used for modeling and designing this structure and the results has been compared with ordinary steels. The design is verified for the emergency limit state considering the safety of people inside the protective structure.
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