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首页> 外文会议>EUR 21431; Final Conference of Cost Action C12; 20050120-22; Innsbruck(AT) >Nonlinear response analysis of different retrofit strategies
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Nonlinear response analysis of different retrofit strategies

机译：不同改造策略的非线性响应分析

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摘要

The major objective of this study is to evaluate different retrofit strategies for a typical, existing reinforced concrete building in Istanbul under a non-linear response methodology and performance based design procedure. Calculation of the capacity spectrum of the system and demand spectrum of the design earthquake and the resulting performance points based on FEMA-356 and ATC-40 documents, using SAP2000. Evaluated building is found to be inadequate in terms of strength and stiffness demands of the design earthquakes as defined in the current Turkish Earthquake Code. Capacity curves and performance levels of the building retrofitted with shear walls and concentric braces are obtained and results are discussed. A two-dimensional frame is retrofitted by eccentric braces, concentric braces and steel plates. Ductility and seismic load reduction factors are calculated based on ATC-19. A preliminary cost analysis is also performed and compared for the retrofit strategies used.
机译：这项研究的主要目的是根据非线性响应方法和基于性能的设计程序，评估伊斯坦布尔典型的现有钢筋混凝土建筑的不同改造策略。使用SAP2000，根据FEMA-356和ATC-40文档，计算系统的容量谱和设计地震的需求谱以及由此产生的性能点。在当前的土耳其地震法典中，对设计地震的强度和刚度要求而言，发现评估后的建筑物不足。获得了装有剪力墙和同心支撑的建筑物的能力曲线和性能水平，并对结果进行了讨论。偏心支架，同心支架和钢板对二维框架进行了改造。根据ATC-19计算延展性和减少地震载荷的系数。还进行了初步成本分析，并比较了所使用的改造策略。

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