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Investigate of damage index of coupled steel plate shear walls (C-SPSW) system under seismic loading
Structures ( IF 4.1 ) Pub Date : 2020-09-14 , DOI: 10.1016/j.istruc.2020.09.018
Mahdi Usefvand , Ahmad Maleki , Babak Alinejad

In the analysis of damage to a structure after the occurrence of a destructive event, it is impossible to estimate the exact amount of damage to any part of the structure. Therefore, it is necessary to introduce failure indicators to assess the amount of damage to structural elements. For this purpose, in this study, the damage caused to the coupled-steel plate shear wall (C-SPSW) system under earthquake load was investigated. In this paper, three damage index of park and Ang, ductility and drift using numerical methods upon multi-story C-SPSW systems are investigated. Following the validation of the numerical simulation through a comparison of the experimental results and numerical predictions, a parametric study was performed to evaluate the damage indexes. Comparative results of the hysteresis curves obtained from the finite element analysis with the experimental curves indicated that the finite element model offered a good prediction of the hysteresis behavior of C-SPSW. In the parametric study, Thirty prototype multi-story C-SPSW systems with different the height of the structures were designed, modeled, and using nonlinear seismic analysis. The results show that the use of cumulative damage indices, which is a combination of several different failure parameters, it predicts the vulnerability of structures more realistically.



中文翻译:

地震作用下耦合钢板剪力墙(C-SPSW)系统的破坏指数研究

在发生破坏性事件后对结构的破坏分析中,无法估计对结构任何部分的确切破坏程度。因此,有必要引入失效指标来评估对结构元件的破坏程度。为此,在这项研究中,研究了在地震荷载作用下对耦合钢板剪力墙(C-SPSW)系统的破坏。本文采用数值方法研究了多层C-SPSW系统的停车位和Ang值,延性和漂移三个损伤指标。通过比较实验结果和数值预测对数值模拟进行验证之后,进行了参数研究以评估损伤指数。从有限元分析获得的磁滞曲线与实验曲线的比较结果表明,有限元模型为C-SPSW的磁滞行为提供了良好的预测。在参数研究中,设计,建模了30个具有不同结构高度的多层C-SPSW原型系统,并使用了非线性地震分析。结果表明,使用累积损伤指数是几个不同破坏参数的组合,可以更实际地预测结构的脆弱性。并使用非线性地震分析。结果表明,累积损伤指数是几个不同破坏参数的组合,可以更实际地预测结构的脆弱性。并使用非线性地震分析。结果表明,累积损伤指数是几个不同破坏参数的组合,可以更实际地预测结构的脆弱性。

更新日期:2020-09-14
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