不同钢—混凝土组合剪力墙抗震性能对比分析  

Comparison of Seismic Behavior of Different Steel-Concrete Composite Shear Walls

作　　者：崔龙飞[1] 蒋欢军[1] 吕尚文[1] 

机构地区：[1]同济大学结构工程与防灾研究所,上海200092

出　　处：《结构工程师》2012年第2期80-88,共9页Structural Engineers

基　　金：国家自然科学基金项目(51078272);国家科技支撑计划课题(2012BAJ13B02)

摘　　要：钢—混凝土组合剪力墙中钢板的布置形式是影响其抗震性能的一个主要因素。通过对两组内置钢板混凝土组合剪力墙和内藏钢桁架混凝土组合剪力墙试验的模拟,确定计算模型的建立方法,并选取两片相同含钢率的内置钢板混凝土组合剪力墙和内藏钢桁架混凝土组合剪力墙进行在侧向低周反复荷载作用下的计算分析,对比了两片剪力墙的承载力、刚度及其退化过程、延性、耗能特性及滞回特性。研究结果表明:在相同含钢率的条件下,内藏钢桁架混凝土组合剪力墙与内置钢板混凝土组合剪力墙相比,承载力、延性、耗能能力均有较明显提高。The layout of the steel plate is a major factor that affects the seismic performance of steel-concrete composite shear walls.Numerical model of two steel-concrete composite shear walls,one with concealed steel truss and the other with steel plate,are verified firstly in this paper,then two shear walls with the same steel ratio are analyzed under cyclic loads.The carrying capacity,stiffness,degradation of strength and stiffness,ductility,energy dissipation characteristics and hysteresis characteristics of the two walls are compared.The result proves that the carrying capacity,ductility and energy dissipation capacity of the RC shear wall with concealed steel truss are obviously stronger than that of the steel plate reinforced concrete shear wall in the case of same steel ratio.

关 键 词：内藏钢桁架混凝土组合剪力墙 内置钢板混凝土组合剪力墙 滞回曲线 抗震性能 

分 类 号：TU398.2[建筑科学—结构工程] TU352.11