摘要
该文进行了5个开缝钢板剪力墙在滞回荷载作用下的试验研究,着重研究了钢板剪力墙开缝排数对其力学性能的影响,同时考虑了钢板跨高比和钢板与框架梁连接方式的影响。试验结果表明:两边连接开缝钢板剪力墙具有良好的滞回性能;在弹性阶段,钢板以整体变形为主;进入弹塑性阶段,钢板由整体屈曲变形逐步过渡到以小柱弯扭屈曲为主的变形。构件的最终破坏模式表现为小柱端部撕裂或墙板端部撕裂。钢板开缝排数对剪力墙力学性能的影响较小。已有的研究结果表明:剪力墙的力学性能主要和缝间小柱的宽厚比和高宽比有关,当宽厚比小于15且高宽比大于3时,开缝钢板剪力墙具有良好的滞回性能,缝间小柱端部形成塑性铰耗能,基本能达到理想的平面内工作状态。
A total of 5 steel plate shear wails with slits were tested in this paper. The influence of slit rows was analyzed. The experimental results showed that this kind of specimen exhibited good ductility and energy dissipation ability. At elastic stage, the out-of-plane deformation was evident. With the increase of drift, the deformation of column between two slits failed as flexural-torsional buckling deformations. The failure position was focused at the bottom of the column between two slits or the bottom of a steel plate. The influence of slit rows was not evident. Based on the experimental results, it was found that the steel plate worked in-plane with better energy dissipation ability and ductility when the width-to-thickness ratio of a slit column was less than 15 and the height-to-width ratio was over 3.
出处
《工程力学》
EI
CSCD
北大核心
2012年第3期133-142,共10页
Engineering Mechanics
基金
国家自然科学基金项目(50478029
50808053)
<钢结构设计规范>国家标准管理组项目(GB500172010-02)
关键词
钢板剪力墙
开缝
耗能
延性
两边连接
steel plate shear wall
slit
energy dissipation ability
ductility
connected with frame beams only
