碳纤维约束混凝土偏压柱轴压比限值研究  

Research on ultimate axial compression radio of FRP confined concrete columns under eccentric compression

作　　者：余琼[1] 侯婧辰[1] 

机构地区：[1]同济大学结构工程与防灾研究所,上海200092

出　　处：《四川建筑科学研究》2012年第2期91-95,共5页Sichuan Building Science

摘　　要：纤维材料环向缠绕加固混凝土偏压柱,在工程实际中已有应用,但相关理论尚不成熟,有关轴压比限值的研究较少,本文采用了敬登虎提出的轴压比限值计算方法,并提出基于承载力理论的轴压比限值计算方法,将两种方法与试验进行对比,结果均较为吻合,可为实际加固提供参考。The concrete columns confined by fiber reinforced polymer（FRP） composites have been used in engineering practice.However,the relevant theory is not mature and less researcher has been down on the calculation of ultimate axial compression radio.Method for caculating ultimate axial compression radio by literature is adopted in this paper,and formuler of ultimate axial compression radio based on bearing capacity theory is put forword.Through experimental data from several experiments,the correctness of the methods is verified.Since the results are of acceptable precision,the formulas can be used as a reference for reinforcement design.

关 键 词：弱约束 界限破坏 承载力理论 轴压比设计值 

分 类 号：TU312[建筑科学—结构工程]