双钢板混凝土组合剪力墙双向压弯性能研究  

STUDY ON BIAXIAL BENDING BEHAVIOR OF STEEL-CONCRETE COMPOSITE SHEAR WALLS

作　　者：可飞 郭全全[1] 赵唯以[1] 周耀[1] 

机构地区：[1]北京航空航天大学交通科学与工程学院,北京100191

出　　处：《工业建筑》2016年第4期128-134,共7页Industrial Construction

基　　金：北京市自然科学基金项目(8142026);国家自然科学基金项目(51578032)

摘　　要：基于纤维模型法,编制双钢板混凝土组合剪力墙(以下简称组合剪力墙)的双向压弯非线性分析程序,通过与已有试验结果、有限元计算结果的对比,验证分析程序的准确性。基于分析程序重点对组合剪力墙的双向压弯承载力进行数值计算,计算结果表明:面外弯矩的存在将显著降低组合剪力墙的面内承载能力,当组合剪力墙处于双向压弯受力状态时,完全按照面内承载进行设计将严重高估构件的承载能力。同时,利用分析程序对组合剪力墙进行参数分析,讨论荷载偏心角、荷载偏心距、混凝土强度和含钢率对组合剪力墙承载力的影响。Based on the fiber section analysis,a biaxial bending nonlinear analysis program for steel-concrete shear walls was developed. The accuracy of the program was verified by comparisons of the existing experimental results with the finite element analysis results. Based on the nonlinear analysis method,the biaxial bending bearing capacity of steel-concrete shear walls was calculated,and the results indicated that the in-plane bearing capacity of steelconcrete shear walls decreased obviously due to the effects of external bending moment. Only considering the in-plane bearing capacity would overestimate the bearing capacity when steel-concrete shear walls was under biaxial bending state. Besides,the nonlinear analysis program was employed to study the effects of eccentric angle,eccentricity,concrete compressive strengths and steel ratios on the bearing capacity of steel-concrete shear walls.

关 键 词：双钢板混凝土组合剪力墙 非线性分析 双向压弯 参数分析 

分 类 号：TU398.9[建筑科学—结构工程]