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首页 > 过刊浏览>2023年第46卷第10期 >127-142. DOI:10.11835/j.issn.1000-582X.2023.10.012
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剪力墙构件恢复力模型在OpenSees中的应用
作者:
作者单位:

江南大学 环境与土木工程学院，江苏 无锡 214122

作者简介:

罗国胜（1994—），男，硕士研究生，主要从事混凝土结构抗震性能研究，(E-mail) 2942247750@qq.com。

通讯作者:

顾冬生，男，副教授，(E-mail)gussds@jiangnan.edu.cn。

中图分类号:

TU375.3

基金项目:

国家自然科学基金资助项目(51709129)；江苏省自然科学基金资助项目(BK20131105)。


Shear wall component restoring force model in OpenSees
Author:
Affiliation:

School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, Jiangsu, P. R. China

Fund Project:

Supported by National Natural Science Foundation of China (51709129), and Natural Science Foundation of Jiangsu Province (BK20131105).

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    摘要:

    提出了钢筋混凝土（RC）剪力墙弯矩-转角三折线骨架模型，给出了关键点的计算方法。计算了105片RC剪力墙的截面有效刚度和峰值转角，并与试验值对比，验证了模型的准确性。采用OpenSees软件中可以考虑强度与刚度退化的修正的 Ibarra-Medina-Krawinkler （ModIMK）滞回材料定义滞回规则，对钢筋混凝土剪力墙低周往复试验进行数值模拟与分析，模拟结果和试验非常吻合。与可以考虑弯剪耦合效应（shear-flexure interaction model, SFI）的模型的时程分析对比结果表明滞回模型可以有效预测框架剪力墙在地震作用下的响应。增量动力分析(incremental dynamic analysis, IDA)表明滞回模型可以有效预测剪力墙在地震作用下的倒塌行为，倒塌时的层间位移角比纤维模型小。

    Abstract:

    This paper proposes a moment-rotation tri-linear backbone curve model for reinforced concrete (RC) shear walls. Equations for predicting key points on the backbone curve are provided. The calculated sectional effective stiffness and ultimate drift ratio are compared with experimental results from 105 RC shear walls. The Modified Ibarra-Medina-Krawinkler (ModIMK) material in OpenSees software that considers the strength and stiffness degradation is used to define the hysteresis rules. Numerical simulation and analysis of low-cycle reciprocating tests on reinforced concrete shear walls are carried out, and the simulation results closely align with the test results. When compared to a model that considers the bending-shear coupling effect (SFI), our hysteretic model effectively predicts the response of the frame shear wall during earthquake events. Furthermore, dynamic incremental analysis (IDA) shows that our model can accurately predict the collapse behavior of shear walls during earthquakes, with inter-layer drift ratios during collapse being smaller than those in the fiber mode.

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罗国胜,顾冬生.剪力墙构件恢复力模型在OpenSees中的应用[J].重庆大学学报,2023,46(10):127-142.

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  • 收稿日期:2023-02-09
  • 在线发布日期: 2023-11-06
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