双向加载下波形钢板剪力墙抗震性能研究  

Research on seismic performance of corrugated steel plate shear walls under bidirectional loading

作　　者：王威[1] 罗麒锐 苏三庆[1] 徐善文 王冰洁 孙壮壮 WANG Wei;LUO Qirui;SU Sanqing;XU Shanwen;WANG Bingjie;SUN Zhuangzhuang(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,西安710055

出　　处：《振动与冲击》2021年第16期175-182,共8页Journal of Vibration and Shock

基　　金：国家自然科学基金(51878548,51578449)。

摘　　要：采用试验的方法对单轴往复加载下的3种不同形式钢板剪力墙进行抗震性能研究,试验结果表明,3种剪力墙均是因为面外约束不足而失稳失效,此外还得到横向波纹剪力墙拥有更好的面内抗震性能的结论。还原地震多维性对钢板剪力墙面内抗震性能的影响,通过有限元仿真的方式进行双向加载,探明了双向地震作用下,横向波纹剪力墙面内抗震性能的变化规律,其中边缘柱翼缘宽度及钢板厚度为主要变量。结果表明:波纹钢板剪力墙面外约束是限制其面内抗震性能的重要因素;双向加载下,其面内抗震性能出现不可忽略的削弱现象,并且滞回曲线呈现出明显的捏拢现象;在充分保证面外约束下,尽管可以有效地降低性能削弱及捏拢现象这两种不利影响,但是还需要在对波纹钢板剪力墙的面内抗震性能设计时增设安全系数,以此考虑地震多维性的不利影响。An experimental method was used to study the seismic performance of three different types of steel plate shear walls under uniaxial reciprocating loading.The test results show that the three types of shear walls are instability failure due to insufficient out-of-plane constraints.In addition,it is concluded that the horizontally corrugated shear walls have a better in-plane seismic performance.In order to understand the effects of seismic multi-dimensionality on the seismic performance of steel plate shear walls,bidirectional loading was carried out by finite element simulation,and the variation law of seismic performance in horizontally corrugated shear walls under bidirectional earthquakes was investigated.The width of the flange of the edge column and the thickness of the steel plate are the main variables.The results show that the out-of-plane constraint of the corrugated steel plate shear wall is an important factor limiting the in-plane seismic performance.Under biaxial loading,the in-plane seismic performance is not negligibly weakened,and the hysteresis curve shows the obvious pinch phenomenon.With the sufficient guarantee of the out-of-plane constraints,although these two adverse effects(performance weakening and pinch phenomenon)can be effectively reduced,it is necessary to add a safety factor to the design of the in-plane seismic performance of the corrugated steel shear wall for considering the adverse impact of multi-dimensional earthquake.

关 键 词：波形钢板剪力墙 面内抗震性能 面外约束 双向加载 安全系数 

分 类 号：TU352.11[建筑科学—结构工程] TU398.2