隅撑支撑钢框架的试验研究和弹塑性受力分析  

Experimental Study and Elastoplastic Analysis of the Knee-brace-steel-frame

作　　者：孙爱伏[1] 董军[2] 王肇民[1] 

机构地区：[1]同济大学建筑工程系,上海200092 [2]南京工业大学土木工程学院,210009

出　　处：《建筑结构》2007年第3期75-77,共3页Building Structure

摘　　要：通过1∶2隅撑支撑钢框架模型的单调加载试验,研究了隅撑支撑钢框架的抗侧力性能和破坏机理。试验结果表明,在水平荷载作用下隅撑最先发生屈服,并具有很好的变形能力,结构具有很好的滞回耗能性能和延性。对隅撑支撑钢框架进行了弹塑性受力分析,并给出了其恢复力模型,从而为简化隅撑支撑钢框架的非线性分析提出了一种新的方法。Experiment on 1 ： 2 model of the knee-braced-steel-frame was conducted under monotonic load to investigate the lateral load-resisting performance and its failure mechanisms. The experimental results show that under horizontal loads the knee element can yield firstly and has excellent deformation capacity. This makes the knee-braced-steel-frame has excellent capacity of energy dissipation and ductility. Then the knee-brace-steel-frame is elastic-plastic analyzed and its restoring force model is given to present a new way that can simplify the nonlinear analysis of the knee-braced-steel-frame.

关 键 词：隅撑支撑钢框架 抗侧力性能 破坏机理 弹塑性受力分析 恢复力模型 

分 类 号：TU973.15[建筑科学—结构工程]