Modified modeling method for RC frame structures considering earthquake damage

被引：0
|
作者：
Yang Y. [1 ]
Xu Z. [1 ]
Shah A.A. [2 ]
Dong Y. [1 ]
Hu Z. [1 ]
Huang E. [1 ]
机构：
[1] School of Civil Engineering, Southeast University, Nanjing
[2] Department of Civil Engineering, International Islamic University, Islamabad
来源：
Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) | 2021年 / 51卷 / 03期
关键词：
Earthquake damage; Elasto-plastic analysis; Hysteresis model; Performance degradation;
D O I：
10.3969/j.issn.1001-0505.2021.03.002
中图分类号：
学科分类号：
摘要：
To describe the effects of earthquake-damaged structures accurately, the quantitative analysis method for damaged members and an improved modeling method for earthquake-damaged structures were proposed. Firstly, the performance degradation indices of the damaged members were defined from the aspects of the backbone curve and the hysteretic rule. Then, the resilience models for the damaged reinforced-concrete(RC) members based on the Park-Ang model and the Kunnath model were built respectively by using statistical regression analysis method, and the accuracies of the resilience models were verified. Finally, the elasto-plastic analysis of the earthquake-damaged frame was carried out by using the resilience models. The results show that the resilience models for the damage members obtained by the Park-Ang model and the Kunnath model have high accuracy. For the two types of members studied, the errors between the peak forces of the theoretical hysteresis curves and those of the experimental hysteresis curves are less than 10%. Applying combined seismic waves to the intact structural model and single seismic waves to the damaged structural model, the displacement time history curves of each floor are in good agreement, showing that the influence of the level and distribution of earthquake damage on structural anti-earthquake performance can be accurately analyzed by using these resilience models to establish earthquake-damaged structures. © 2021, Editorial Department of Journal of Southeast University. All right reserved.
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页码：371 / 377
页数：6
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