摘要
钢－砼无主筋柱是钢－砼组合结构的重要形式之一，取消主筋可避免早期的筋周粘结裂缝而引发的斜向开裂，改善钢－砼组合柱在反复大变形时的受力性能。本文在试件试验研究的基础上对弱轴承受反复弯剪作用与恒定轴压的钢－砼组合柱的抗震性能作了分析，提出简化力学分析模型。计算分析结果与试件实测数据相当接近，并能反映型钢截面及保护层厚度对承载力的影响规律。
Steel-Hoop-Concrete is a new struetural system of SRC structures.In SHC members the early bond cracking can be avoided by removing the main reinforcements so that the shear behavior of the members can be greatly improved in large deformation.Through the experimental investigation,this paper analyses the behavior of columns under a constant axial compressure and cyclic shearbending of earhquatke action,and proposes a simplified mechanical model about shearing force transfer mechanism.The results from the specimens testal with the experimental parameters of cross section and thickness of cover concrete well conform to the results calculated from the model,and the model can tell us the influence rule of parameters on member's capacity in a satisfactory way.
出处
《苏州城建环保学院学报》
1995年第4期15-28,共14页
Journal of Suzhou Institute of Urban Construction and Environmental Protection
基金
院教师科研基金
关键词
钢筋混凝土
组合结构
抗震性能
试验
Reinforced concrete
Composite structures
Cyclic loading
Shear transfer
Ultimate capacity
