全装配式型钢复合墙恢复力模型研究  

Research on restoring force model of fully prefabricated steel composite walls

作　　者：黄炜[1] 刘刚 王伟[1] 张晨龙 HUANG Wei;LIU Gang;WANG Wei;ZHANG Chenlong(School of Civil Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China)

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《华中科技大学学报(自然科学版)》2024年第12期149-157,共9页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51978566);陕西省重点研发计划项目(2020ZDLNY06-04,2021ZDLSF05-11);陕西省教育厅科研计划项目(22JK0440);陕西省杰出青年科学基金资助项目(2018JC-025)。

摘　　要：为研究采用铸钢节点连接全装配式型钢复合墙的破坏机理和抗震性能,对3个型钢复合墙试件进行了拟静力试验(所有试件的比例均为1/2),通过改变型钢复合墙的内置型钢类型和高宽比,分析了型钢复合墙在低周往复荷载作用下的破坏过程、破坏模式、滞回特性、抗剪承载力和变形能力.试验结果表明:采用铸钢节点连接的型钢复合墙均发生剪切破坏,铸钢节点未发生破坏,其性能稳定;利用OpenSees软件对各试件进行了数值模拟,计算结果与实测结果符合度高;提出了适用于装配式型钢复合墙的双参数地震损伤模型,并进一步建立了基于损伤的型钢复合墙恢复力模型,通过与实测滞回曲线的对比,验证了恢复力模型的合理性.To research the failure mechanism and seismic behavior of fully prefabricated steel composite walls with steel castings,quasi-static tests were carried out on three steel composite walls(all the specimens had a scale of 1/2).The steel composite walls under low-period cyclic load were analyzed on damage processes,failure patterns,hysteresis characteristics,shear and deformation capacities by changing their built-in steel types and aspect ratios.Experiment results show that the steel composite walls with steel castings exhibit a typical shear failure pattern,and the steel castings are undamaged,whose performance is stable.The OpenSees software is used to simulate the specimens,and the numerical results are in good agreement with the experimental results.A twoparameter seismic damage model suitable for prefabricated steel composite wall is proposed,and the restoring force model of steel composite wall based on damage is further established.The rationality of the restoring force model is verified by comparing with the experimental hysteresis loops.

关 键 词：型钢复合墙 铸钢节点 拟静力试验 抗震性能 数值模拟 恢复力模型 

分 类 号：TU398.9[建筑科学—结构工程]