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首页> 外文期刊>Bulletin of earthquake engineering >Fragility-based analysis of the influence of effective stiffness of reinforced concrete members in shear wall buildings
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Fragility-based analysis of the influence of effective stiffness of reinforced concrete members in shear wall buildings

机译：基于脆性混凝土构件在剪力墙建筑物中有效刚度影响的脆弱性分析

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When modeling RC shear wall buildings for seismic analysis there is little consensus in the literature on the appropriate value of the wall effective shear stiffness (GA(eff)) and the slab effective bending stiffness (EIeff). A probabilistic analysis based on fragility curves is a robust technique to assess the influence of these parameters on the expected seismic performance, but such studies are scarce because they require computationally expensive analysis such as Incremental Dynamic Analysis (IDA). In this paper, fragility curves are developed following the recently introduced SPO2FRAG procedure, a simplified methodology that does not require IDA but the computationally more affordable incremental static (pushover) analysis. The fragility curves provided by SPO2FRAG are used to evaluate the influence of the values of GA(eff) and EIeff on the analytical seismic response of full 3D nonlinear models of two actual (and representative) residential wall buildings of 17 and 26 stories located in Santiago (Chile). The accuracy of SPO2FRAG is also evaluated through comparisons with empirical fragilities.
机译：在建模RC剪切墙壁建筑物的地震分析时，在壁有效剪切刚度（GA（EFF））和板坯有效弯曲刚度（EIEFF）的适当值上存在很少的共识。基于脆弱曲线的概率分析是一种稳健的技术，可以评估这些参数对预期地震性能的影响，但是这种研究是稀缺的，因为它们需要计算昂贵的分析，例如增量动态分析（IDA）。在本文中，脆弱的曲线在最近引入的SPO2FRAG过程之后，简化方法不需要IDA，而是计算更实惠的增量静态（推送）分析。 SPO2FRAG提供的脆弱曲线用于评估GA（EFF）和EIEFF的值对17个和26个故事的全3D非线性模型的完整3D非线性模型的分析地震响应的影响（智利）。 SPO2FRAG的准确性也通过与经验磁带病的比较来评估。

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