建筑结构学报2013，Vol.34Issue(3)：100-109,10.
钢管高强混凝土剪力墙轴心受压试验研究
Axial compressive test and study on steel tube confined high strength concrete shear wall
摘要
Abstract
A new type of composite shear wall-steel tube confined high strength concrete shear wall (STCHSCW) was presented. The axial compression tests of 20 specimens were conducted to observe the failure mechanism and force mechanism, and to study the affecting factors of concrete strength, content of CCST, longitudinal reinforcement, stirrup ratio and slenderness ratio of the shear walls. The test results show that the high strength concrete confined by steel tube and the reinforced concrete outside the steel tube could work together well in elastic stage. C80 ～ C100 high strength concrete could be used since the effective confinement of the steel tube and STCHSCW have higher axial compression bearing capacity. Stirrup ratio of the volume of concrete is directly related to the degree of steel tube confining effect. The shear wall will still be able to retainhigh and stable residual carrying capacity even if the concrete outside steel tube is damaged. At the same time, the nonlinear FEM analysis of specimens' models by ABAQUS were introduced,which match well with the experimental results. Based on the statistical analysis of the test results, practical formulas for axial compression bearing capacity of steel tube confined high strength concrete shear wall are also proposed in this paper. They are available for practical engineering application use purposes.关键词
钢管高强混凝土剪力墙/轴心受压试验/非线性有限元分析/轴压性能Key words
steel tube confined high strength concrete shear wall/ axial compression test/ nonlinear finite element analysis/ axial compressive properties分类
建筑与水利引用本文复制引用
方小丹,蒋标,韦宏,周越洲,江毅,赖洪涛..钢管高强混凝土剪力墙轴心受压试验研究[J].建筑结构学报,2013,34(3):100-109,10.基金项目
亚热带建筑科学国家重点实验室基金项目. （）
