两边连接开缝钢板剪力墙的弹性屈曲分析  

ELASTIC BUCKLING ANALYSIS OF TWO-SIDED CONNECTION STEEL PLATE SHEAR WALL WITH SLITS

作　　者：马欣伯[1,2] 郭兰慧[2] 张素梅[2] 戎芹[2] 

机构地区：[1]住房和城乡建设部科技发展促进中心,北京100835 [2]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090

出　　处：《工程力学》2011年第A01期130-135,共6页Engineering Mechanics

基　　金：国家自然科学基金项目(50478029;50808053);黑龙江省自然基金重点项目(ZJG0701)

摘　　要：两边连接开缝钢板剪力墙具有延性好,耗能能力强等优点,同时有效避免了四边连接钢板剪力墙对框架柱产生的附加荷载,避免了与剪力墙相连框架柱的早期破坏。该文对两边连接开缝钢板剪力墙的弹性屈曲性能进行分析,系统考察了缝间小柱高宽比、宽厚比、开缝排数等参数的影响;同时分析了缝间小柱的屈曲性能,给出缝间小柱端部先于钢板整体弹性屈曲时的临界高厚比限值;分析结果表明,开缝钢板剪力墙保持平面内工作且通过缝间小柱端部形成塑性铰承担荷载并耗能时的理想开缝原则为缝间小柱宽厚比b/t<15且高宽比h/b>3.0。Steel plate shear walls with slits have good ductility and energy dissipation ability.As shear walls are not connected to frame columns,the premature overall buckling or local buckling failure of columns can be prevented.This paper presents the elastic buckling analysis of steel plate shear walls with slits connected with frame beams only.The influences of the width-to-thickness ratio and depth-to-width ratio of slit columns,and slit rows were analyzed.Also,the behavior of a slit column is studied to get the maximum height-to-thickness ratio when plastic hinges form at the bottom of the slit column.The results show that the steel plate shear wall with slits works in a plane if the slit height-to-width ratio is over 3.0 and the slit height-to-thickness ratio is less than 15.

关 键 词：钢板剪力墙 缝间小柱 高宽比 宽厚比 弹性屈曲 

分 类 号：TU398[建筑科学—结构工程]