摘要
通过 2 2根钢管高强混凝土柱的轴压试验 ,验证了高强混凝土结构技术规程有关钢管高强混凝土构件初始压缩刚度的算式。研究给出套箍指标为 0 2 8～ 1 1的钢管高强混凝土峰值应力、峰值应变、平台应力 (即残余应力 )、平台初始应变的算式 ;给出了钢管高强混凝土应力
Experiment on axially loaded 22 steel tube confined high strength concrete columns (STCC) was carried out. The formula for the initial compressive stiffness of STCC proposed by Technical specification of high strength concrete structures is verified. The empirical formulas for peak stress,peak strain,plateau stress and the strain at the starting point of plateau of steel tube confined high strength concrete with the confinement index of 0 28～1 1 are obtained. The equation for complete axial compressive stress strain curve of steel tube confined high strength concrete and its parameters are suggested.
出处
《建筑结构》
CSCD
北大核心
2004年第1期11-12,19,共3页
Building Structure
基金
教育部博士点基金 ( 2 0 0 0 0 0 0 3 45 )
北京市自然科学基金 ( 80 0 2 0 12 )
关键词
钢管高强混凝土
应力一应变全曲线
柱
轴压试验
峰值应力
峰值应变
steel tube confined high strength concrete
peak strength
peak strain
plateau stress
stress strain curve
