钢管高强混凝土长柱性能和承载能力的研究  

Research on the Behavior and Loading Capacity of Slender Steel Tubular Columns Filled with High-Strength Concrete

作　　者：顾维平[1] 蔡绍怀[1] 冯文林[1] 

机构地区：[1]中国建筑科学研究院结构所

出　　处：《建筑科学》1991年第3期3-8,共6页Building Science

基　　金：国家自然科学基金;城乡建设科技发展基金

摘　　要：钢管高强混凝土可以有效地克服高强混凝土本身的脆性,它除了具有普通钢管混凝土的优点外,强度还得到大幅度提高。本文介绍了10个不同长细比的钢管高强混凝土轴压长柱的试验研究工作。研究表明,套箍指标较高的钢管高强混凝土长柱的性能与普通钢管混凝土相似。普通钢管混凝土长柱的承载能力考虑长细比影响的折减系数计算公式也适用于钢管高强混凝土长柱。The ductility of high-strength concrete can be greatly improved by using confinement in the form of steel tubes. The steel tubes filled with highstrength concrete not only take the advantage of normal concrete-filled steel tubes but achieve higher strength. This paper reports the experimental research of 10 specimens of slender steel tubular columns filled with high-strength concrete. The research shows that at high level of confinement index, the slender steel tubular columns filled with high-strength concrete are simiIar to those with normal concrete in the behavior, and the formula for predicting the strength reduction factor due to slenderness of normal concrete-filled steel tubes can be used for long steel tubular columns filled with high-strength concrete.

关 键 词：钢管混凝土 高强 性能 承载力 柱 

分 类 号：TU375.302[建筑科学—结构工程]