开洞波纹钢板剪力墙初始抗侧刚度计算方法研究

邓恩峰; 宗亮; 丁阳

doi:10.13206/j.gjgS21100101

开洞波纹钢板剪力墙初始抗侧刚度计算方法研究

doi: 10.13206/j.gjgS21100101

邓恩峰¹,
宗亮^2,3, ,,
丁阳^2,3

1. 郑州大学土木工程学院, 郑州 450001;
2. 天津大学建筑工程学院, 天津 300354;
3. 滨海土木工程结构与安全教育部重点实验室(天津大学), 天津 300354

基金项目:

国家自然科学基金（51908511，51978456）；天津市科技计划项目（19YFHBQY00060，19JCZDJC39500）；中国博士后科学基金面上项目（2019M662532）。

详细信息

作者简介:
邓恩峰,男,1990年出生,工学博士,副教授。

通讯作者:
宗亮,男,1988年出生,工学博士,副教授,zongliang@tju.edu.cn。

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- 被引次数: 0
出版历程
- 收稿日期: 2021-10-01
- 网络出版日期: 2022-05-27

Research on Calculated Method of Initial Lateral Stiffness of Corrugated Steel Plate Shear Walls with Openings

Enfeng Deng¹,
Liang Zong^{2,3
, ,},
Yang Ding^2,3

1. School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China;
2. School of Civil Engineering, Tianjin University, Tianjin 300354, China;
3. Key Laboratory of Coast Civil Structure Safety (Tianjin University), Ministry of Education, Tianjin 300354, China

摘要

摘要: 波纹钢板是模块化钢结构中常用的抗侧力构件，由于建筑功能的要求，常常需要在波纹钢板上开设门窗洞口。然而，目前对开洞波纹钢板剪力墙抗侧性能及设计方法的研究比较匮乏，一定程度上制约了模块化钢结构的推广和应用。
基于已完成的开洞波纹钢板剪力墙抗震性能试验，利用通用有限元软件ABAQUS建立开洞波纹钢板剪力墙精细化有限元分析模型，考虑了几何非线性、材料非线性和初始几何缺陷的影响。通过与试件在低周往复荷载作用下的试验结果对比，验证所建立有限元模型的可靠性，揭示了试件的破坏机理。结果表明：所建立的有限元模型可以良好模拟开洞波纹钢板剪力墙在低周往复荷载作用下的初始抗侧刚度、极限抗剪承载力和破坏模式。由于地震作用下洞口四角存在较强的应力集中，为保证开洞波纹钢板剪力墙具有良好的延性和变形能力，门窗洞口应避免设在试件对角线的端部。
建立了开洞波纹钢板剪力墙理论计算模型，将开洞波纹钢板剪力墙等效为若干不开洞波纹钢板组成的一系列串并联弹簧模型，推导了开洞波纹钢板剪力墙抗侧刚度计算式，并与相关试验和数值模拟结果对比验证所推导的计算式。结果表明：所推导的计算式具有较好的精度，可以良好预测开洞波纹钢板剪力墙初始抗侧刚度。通过参数分析给出了不同波纹钢板厚度、不同波峰高度、不同开洞位置对开洞波纹钢板剪力墙初始抗侧刚度的影响规律。结果表明：开洞位置显著影响开洞波纹钢板剪力墙初始抗侧刚度，为使开洞波纹钢板剪力墙具有较高的抗侧刚度，洞口位置宜靠近框架外边缘。基于上述研究工作，给出开洞波纹钢板剪力墙初始抗侧刚度计算方法，建议了合理的开洞位置。
- 模块化钢结构 /
- 波纹钢板剪力墙 /
- 开洞 /
- 抗侧刚度 /
- 有限元模拟 /
- 理论分析
Abstract: Corrugated steel plate is widely used as lateral-force resisting component for modular steel construction(MSC). Meanwhile, openings served as windows or doors are commonplace for the corrugated steel plate shear walls(CSPSWs) in MSC for the realization of the building function. However, there is a lack of research on the lateral performance and design method on CSPSWs with openings, which hinders the promotion and application of MSC to some extent.
Elaborate finite element model(FEM) was developed for CSPSWs with openings by general finite element software ABAQUS based on the previous cyclic tests on CSPSWs with openings, considering geometric nonlinearity, material nonlinearity and geometrical imperfection. The reliability of the FEM was verified against the test results and the failure mechanism of the specimens was revealed. It is indicated that the developed FEM can well predict the initial lateral stiffness, shear capacity and failure modes of CSPSWs with openings under low cyclic loading. Stress concentration exists in the corner regions of the opening under earthquake. It is recommended that the opening should be located off the end of the diagonal tension field to guarantee the deformation capacity and ductility of the specimen.
The theoretical calculating model of CSPSWs with openings was established. CSPSWs with openings was equivalent as some series-parallel connected springs. The theoretical formulas for predicting the initial lateral stiffness of CSPSWs with openings were deduced and validated against the related test and numerical results. It is indicated that the proposed formulas can predict the lateral stiffness of CSPSWs with openings with well precision. Parametric analysis was conducted to reveal the influence of the thickness of the infill panel, the height of the crest of the infill corrugated steel plate and the location of the opening on the initial lateral stiffness of CSPSWs with openings. The results indicate that the location of the opening location affects the initial lateral stiffness of CSPSWs with openings significantly. The opening is suggested to be located near the outer frame to obtain higher lateral stiffness. The present study provides calculating method for initial lateral stiffness of CSPSWs with openings and the location of the openings is recommended.
- modular steel construction /
- corrugated steel plate shear walls /
- opening /
- lateral stiffness /
- finite element analysis /
- theoretical analysis

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参考文献(14)

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