钢管高强混凝土剪力墙压弯性能试验研究  

Experimental study on axial-flexural behavior of shear walls with steel tube-confined high performance concrete

作　　者：方小丹[1,2] 李青[3] 韦宏[1] 周越洲[1] 江毅[1] 赖洪涛[1] 

机构地区：[1]华南理工大学建筑设计研究院,广东广州510640 [2]华南理工大学亚热带建筑科学国家重点实验室,广东广州510640 [3]华南理工大学土木与交通学院,广东广州510640

出　　处：《建筑结构学报》2013年第8期72-81,共10页Journal of Building Structures

基　　金：亚热带建筑科学国家重点实验室基金项目

摘　　要：为研究全截面配置钢管高强混凝土剪力墙的压弯性能,完成了8个钢管高强混凝土剪力墙试件在单调水平荷载作用下的压弯试验,研究各试件的破坏形态、刚度、承载力、变形能力和耗能能力。试验结果表明:剪力墙的破坏形态为弯曲破坏;与一般剪力墙相比,钢管高强混凝土剪力墙初始刚度大、承载力高,破坏时承载力和刚度退化较慢、延性好,可避免底部剪切滑移破坏,具有较好的抗震性能。利用ABAQUS有限元分析软件对钢管高强混凝土剪力墙进行非线性分析,对其受力机理作理论上的诠释。在试验和理论分析的基础上,提出了钢管高强混凝土剪力墙压弯承载力计算式,计算结果与试验结果吻合较好。To study the axial-flexural behavior of shear walls with steel tube-confined high performance concrete （STCHPC） embedded in the whole section, compression bending tests on eight STCHPC shear wall specimens were conducted. Mechanical behavior such as failure pattern, displacement ductility, bearing capacity, stiffness degeneration and energy dissipation was investigated. The test results show that the mechanical behavior of the shear walls is significantly improved with embedded STCHPC. Then based on the experimental results, the nonlinear finite element analysis was carried out using ABAQUS program. Based on the test and FEA results, axial-flexural capacity formula for STCHPC walls was proposed, which is in good agreement with experimental results.

关 键 词：钢管高强混凝土剪力墙 压弯试验 非线性有限元分析 压弯性能 位移延性系数 

分 类 号：TU398.2[建筑科学—结构工程] TU317.1