密肋防屈曲钢板剪力墙低周反复荷载试验研究  

Cyclic test of a grid-stiffened buckling restrained steel plate shear wall

作　　者：郝际平[1] 申新波 边浩[1] 房晨[1] 袁昌鲁[1] 

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：《地震工程与工程振动》2015年第6期114-120,共7页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金资助项目(51178381)~~

摘　　要：通过对一榀密肋防屈曲钢板剪力墙在水平低周反复荷载作用下的试验,研究了该结构的初始刚度、滞回曲线、骨架曲线、延性和耗能性能。试验结果表明:内填板与两侧网格密肋通过螺栓连接,减缓了内填钢板的初始几何缺陷;与普通薄钢板剪力墙相比,降低了对边框柱抗弯刚度的要求;网格密肋的设置有效地避免了内填钢板的整体屈曲,减小了试验过程中的面外变形;提高了墙体的初始刚度和弹性屈曲荷载;改善了滞回曲线的"捏缩"现象。密肋防屈曲钢板剪力墙具有较大的抗侧刚度和稳定的耗能能力,是一种非常适用于高烈度抗震设防区的抗侧力构件。该研究为其理论分析和工程应用提供了依据。Based on the low cyclic testing of the grid-stiffened buckling restrained steel plate shear wall( BRSPSW),the initial stiffness,hysteresis curve,skeleton curve,ductility and energy dissipation of the structure are discussed. The test results show that the infill plate and stiffener on both sides are connected by bolts,which decreased initial geometric imperfections of the infill plates. Compared with SPSW,The BR-SPSW can reduce the bending stiffness of frame columns. The setting of grid-stiffeners effectively avoid the overall buckling of infill plates,reduce the out-plane deformation during the experiment,increase the initial stiffness and the elastic buckling load of panels,improve the shrinkage of hysteretic loop of the unstiffened steel plate shear wall( SPSW). The elastic lateral stiffness and energy dissipation ability of the grid-stiffened BR-SPSW are improved significantly,and the structure can be applied in high-rise buildings especially in seismic zones to resist lateral force induced by wind and earthquake. The research provides a basis for theoretical analyses and engineering applications of the structural system.

关 键 词：防屈曲钢板剪力墙 滞回曲线 骨架曲线 耗能性能 低周反复荷载 

分 类 号：TU392.4[建筑科学—结构工程]