钢框架短肢组合钢板剪力墙结构优化分析  

Optimization Analysis on Steel Frame with Short-Limb Steel Plate Composite Shear Wall

作　　者：郭震[1] 朱飞[1] 王永超[1] 常鸿飞[1] 

机构地区：[1]中国矿业大学力学与建筑工程学院,江苏徐州221116

出　　处：《建筑钢结构进展》2017年第4期36-42,共7页Progress in Steel Building Structures

基　　金：国家自然科学基金(51408596)

摘　　要：钢框架短肢组合钢板剪力墙结构是一种适用于小高层的建筑新型框架剪力墙结构,它具有良好的抗震性能。以影响结构抗震性能的内嵌钢板宽厚比、面外墙板约束及钢板边界约束等4个因素进行了分析。通过总结各影响因素,进行了结构单元动力响应的数值模拟分析,提出了组合钢板剪力墙与钢框架的合理抗侧刚度比及合理的内嵌钢板剪力墙宽厚比。优化后的结构模型试验证明:当钢框架短肢组合钢板剪力墙结构中各构件在整个结构中达到最优设计,同时抗侧刚度比在0.42~0.45之间时,结构整体具有较高的水平承载能力,良好的抗震和耗能能力。最后提出了钢框架短肢组合钢板剪力墙的优化设计建议。A structural system of steel frame with short-limb steel plate composite shear walls with better seismic behavior is introduced in this paper which is commonly used in medium high-rise buildings.The further studies are conducted for proper structural design that includes width-thickness ratio of steel plate and boundary constraints.Numerical models for dynamic response analysis considering the effect of width-thickness ratio of steel plate,boundary constraint and out-of-plane constraint ratio are established.Reasonable lateral stiffness ratio of shear wall over frame and widththickness ratio of steel plate are suggested by using finite element analysis.Under cyclic test,the optimized designed specimen exhibits a better seismic behavior.When the lateral stiffness ratio is 0.42~0.45,the strength and ductility of steel plate composite shear walls can provide a significant performance for the moment-resisting frame.Also,optimization suggestions for moment-resisting frame design with steel plate composite shear wall system are presented.

关 键 词：钢框架 组合钢板剪力墙 宽厚比 边界约束 抗侧刚度比 抗震耗能 

分 类 号：TU398[建筑科学—结构工程]