开缝薄钢板剪力墙低周反复荷载试验研究  

Cyclic test of thin steel plate shear wall with slits

作　　者：曹春华[1] 郝际平[1] 王迎春[1] 李峰[1] 孙彤 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055 [2]山东莱钢建设有限公司,山东青岛266071

出　　处：《西安建筑科技大学学报（自然科学版）》2008年第1期46-52,共7页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50378078);陕西省自然科学基金资助项目(2005E233)

摘　　要：作为一种新型的抗侧力构件,开缝薄钢板剪力墙以弯曲链杆为主要的耗能构件,在不需要强大加劲体系的前提下,使弯曲弹塑性变形主要集中在弯曲链杆的顶部和底部,从而实现延性耗能.通过两片开缝薄钢板墙低周反复荷载试验,系统地研究了开缝薄钢板墙的破坏过程和破坏机理,得到了承载力,侧移刚度,延性和耗能能力等指标.试验结果表明,开缝薄钢板墙的承载力和侧移刚度能满足正常使用阶段要求,当内填板的整体面外屈曲、缝间板条和边缘加劲肋的弯扭屈曲不先于弯曲链杆的端部弯曲屈服时,开缝薄钢板墙有很好的延性和耗能能力,是一种理想的水平抗侧力构件.Described a new type of earthquake-resisting structure consisted of a thin steel plate shear wall with vertical slits. In this structure, the steel .plate segments between the slits behaved as a series of flexural links, which provided a fairly ductile response with a concentration of plastic deformation at the top and bottom of the flexural links. Experimental testing was conducted on 2 one-story single bay specimens of roughly one-third of full scale, which were subjected to gravity loads at the top of the wall and cyclic horizontal loads at the floor level. These tests provide data on the general performance of the walls that provided the basis for the investigation on the lateral stiffness, ductility, energy absorption, load versus displacement envelope and hysteretic characteristics etc. The resucts showed that the structure had significant ductility and energy dissipation when properly designed to avoid premature failure due to out- of- plane bucking of infill panel and the instability of the flexural links. The experimental results also showed that the thin steel plate shear wall with slits was an effective lateral load resisting element.

关 键 词：钢板剪力墙 循环荷载 开缝 弯曲链杆 延性 

分 类 号：TU392.4[建筑科学—结构工程]