波形钢板剪力墙拟静力试验及数值模拟  

Quasi-static test and numerical simulation of corrugated steel plate shear wall

作　　者：王威[1] 丁小波 苏三庆[1] 梁宇建 黄元昭 Wang Wei;Ding Xiaobo;Su Sanqing;Liang Yujian;Huang Yuanzhao(School of Civil Engineering,Xi'an University of Architecture&Technology,710055,Xi'an,China)

机构地区：[1]西安建筑科技大学土木工程学院,西安710055

出　　处：《应用力学学报》2021年第5期1782-1791,共10页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金(51578449,51878548);陕西省自然科学基础研究计划重点项目(2018JZ5013)。

摘　　要：为对比波形钢板剪力墙和平钢板剪力墙的抗震性能,进行了水平、竖向波形钢板剪力墙试件和平钢板剪力墙试件的拟静力加载试验,并利用有限元软件对三种钢板剪力墙试件进行了非线性数值分析。试验及有限元分析结果表明:波形钢板剪力墙试件的承载能力和滞回性能显著优于平钢板剪力墙。有限元分析表明:三种钢板剪力墙模型的滞回曲线与试验试件的滞回曲线基本吻合,且模型的特征点位移、荷载与试验数据的相对误差在10%以内,模拟分析结果与试验结果吻合度较高,进而对钢板剪力墙深入研究;试验中发现约束边缘构件H型钢柱刚度不足,导致平钢板剪力墙过早发生平面外失稳破坏,波形钢板剪力墙其腹板未能充分发挥其力学性能。从有限元分析结果可知,将H型钢柱更换为刚度较大的方钢管柱,可以有效防止钢板剪力墙过早发生平面外失稳破坏,使得内嵌钢板的力学性能得以充分发挥,三种钢板剪力墙的抗震性能均有较大的提升,且其中竖向波形钢板剪力墙抗震性能最佳。在此基础上,以竖向波形钢板剪力墙为例,分析波幅和波长对其抗震性能的影响。有限元结果表明,随着波幅的增大,剪力墙的抗震性能逐步提高,但当波幅超过70mm时,其抗震性能提高的速度降低,随着波长的减小,剪力墙的抗震性能逐步提高,但由于波形钢板加工工艺的限制,波形钢板的波长为100mm左右时,剪力墙的抗震性能表现较好。In order to study the seismic behavior of corrugated steel plate shear wall and steel plate shear wall,the quasi-static loading test of horizontal,vertical wave steel plate shear wall specimen and steel plate shear wall numerical model calculating were carried out.The nonlinear numerical analysis of three steel plate shear wall specimens was carried out by using finite element software.The experimental and finite element analysis results show that the load-carrying capacity and hysteretic performance of corrugated steel plate shear wall are significantly better than that of flat steel plate shear wall.Finite element analysis shows that:The hysteretic curve of the three steel plate shear wall models is basically consistent with that of the test specimen,and the displacement of the characteristic point of the model,the relative error between the load and the test data is less than 10%,and the result of simulation analysis is in good agreement with the test result.The further research on steel plate shear wall was conducted.It is found in the test that the stiffness of H-shaped steel column with restrained edge member is insufficient,which leads to premature out-of-plane instability failure of steel plate shear wall,and the web of waveform steel plate shear wall fails to give full play to its mechanical properties.According to the results of finite element analysis,it is considered reasonable that the H-shaped steel column is replaced by square steel pipe column with high stiffness.It can effectively prevent the out-of-plane instability failure of steel plate shear wall prematurely,and make the mechanical properties of the steel plate fully play,and the seismic performance of the three kinds of steel plate shear wall can be greatly improved.Among them,the seismic performance of vertical corrugated steel plate shear wall is the best,on this basis,taking the vertical corrugated steel shear wall as an example,how about the effects of wave amplitude and wavelength on its seismic performance are analyzed.The finite eleme

关 键 词：波形钢腹板 钢板剪力墙 约束边缘构件 波幅 波长 

分 类 号：TU392.402[建筑科学—结构工程] TU317.1