建筑结构学报2013，Vol.34Issue(6)：103-112,10.
配置核心钢管的钢筋混凝土柱-钢骨混凝土梁组合框架抗震性能试验研究
Test on seismic performance of frame structure of steel reinforced concrete beam and steel-tube encased concrete column
摘要
Abstract
This paper conducted a test on two frame structures of steel reinforced concrete beam and steel-tube encased concrete column under horizontal low cyclic loading.The test process and failure mode were observed,and the hysteretic behavior,skeleton curves,stiffness degradation,energy dissipation,and residential deformation of the two frames were studied.Meanwhile,the law of strain values of longitudinal bars,flanges and steel-tube in the beam and column end was analyzed carefully,and the order of plastic hinges was given.The test results show that hysteretic curves of the two specimens are plump,and one also behaves good energy dissipation when it is prestressed,and they behave good seismic performance.Meanwhile,the hoop strains of steel-tube of plastic hinge in the column bottom changes unevenly during the whole loading,and they could supply effective constraint on compressive concrete.And the cracks could be delayed when the steel reinforced concrete beam is prestressed.Furthermore,the sequence of plastic hinges of the two specimens is ‘ beam ends before and column bottoms after',so that the mechanism of energy dissipation for beam plastic hinges and a delayed occurring of plastic hinges for column bottom could be achieved.关键词
框架结构/钢骨混凝土梁/内置核心钢管混凝土柱/拟静力试验/抗震性能Key words
frame structure/ steel reinforced concrete beam/ RC column encased steel-tube/ pseudo-static test/seismic performance分类
建筑与水利引用本文复制引用
王琨,袁沈峰,曹大富,陈再现..配置核心钢管的钢筋混凝土柱-钢骨混凝土梁组合框架抗震性能试验研究[J].建筑结构学报,2013,34(6):103-112,10.基金项目
江苏省高校自然科学研究项目(11KJB560006),国家自然科学基金项目(51208150). （11KJB560006）
