摘要
对于钢管混凝土核心柱,核心钢管混凝土和外围普通混凝土的受压性能存在明显差异,本文分析了外围混凝土体积配箍率等因素对柱协同工作的影响,推导出了临界状态时外围混凝土柱的配箍率,并与试验值进行对比,吻合良好。
A composite column with inside concrete filled steel tube may have advantages over either pure steel or reinforced concrete columns, with the inner concrete enhancing the stability , the tube confining the concrete core to a triaxial stress state, and the outer concrete protecting the steel tube from high temperature, corrosion, etc. But the reaction to axial compressive load is different between reinforced concrete column and column with inside concrete filled steel tube . This paper presents analyses of the influences of the transverse reinforcement ratio on the function of the composite column. The transverse reinforcement ratio in critical state is derived , and found to be in good agreement with test data.
出处
《土木工程学报》
EI
CSCD
北大核心
2005年第9期9-13,共5页
China Civil Engineering Journal
基金
国家杰出青年基金海外青年学者合作基金资助项目(50128807)
关键词
钢管混凝土柱核心柱
体积配箍率
约束指标
concrete filled steel tube composite column
transverse reinforcement ratio
confinement index