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Seismic Performance Evaluation of Multistory Reinforced Concrete Moment Resisting Frame Structure with Shear Walls

机译：剪力墙多层钢筋混凝土抗弯框架结构的抗震性能评估

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This paper is intended to evaluate the seismic performance of a twelve-story reinforced concrete moment-resisting frame structure with shear walls using 3D finite element models according to such seismic design regulations as Federal Emergency Management Agency (FEMA) guideline and seismic building codes including Los Angeles Tall Building Structural Design Council (LATBSDC) code. The structure is located in Seismic Zone 4, considered the highest-seismic-risk classification established by the U.S. Geological Survey. 3D finite element model was created in commercially available finite element software. As part of the seismic performance evaluation, two standard approaches for the structure seismic analysis were used; response spectrum analysis and nonlinear time-history analysis. Both approaches were used to compute inter-story drift ratios of the structure. Seismic fragility curves for each floor of the structure were generated using the ratios from the time history analysis with the FEMA guideline so as to evaluate their seismic vulnerability. The ratios from both approaches were compared to FEMA and LATBSDC limits. The findings revealed that the floor-level fragility mostly decreased for all the FEMA performance levels with an increase in height and the ratios from both approaches mostly satisfied the codified limits.
机译：本文旨在根据美国联邦紧急事务管理局（FEMA）指导原则和包括洛斯（Los）在内的抗震建筑规范，使用3D有限元模型评估带有剪力墙的12层钢筋混凝土抗弯框架结构的抗震性能。洛杉矶高层建筑结构设计委员会（LATBSDC）代码。该结构位于地震区域4，这是美国地质调查局确定的最高地震风险类别。在市售的有限元软件中创建了3D有限元模型。作为抗震性能评估的一部分，使用了两种标准的结构抗震分​​析方法：响应谱分析和非线性时程分析。两种方法都用于计算结构的层间漂移率。使用FEMA指南根据时程分析得出的比率生成结构各层的地震脆性曲线，以评估其地震易损性。将两种方法的比率与FEMA和LATBSDC限值进行比较。研究结果表明，对于所有FEMA性能水平，地板的脆性都随着高度的增加而降低，并且两种方法的比率都满足规定的极限。

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