锈蚀钢筋与混凝土粘结性能的试验研究  

Test study on bond behavior of corroded steel bars and concrete

作　　者：赵羽习[1] 金伟良[1] 

机构地区：[1]浙江大学土木工程系,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2002年第4期352-356,共5页Journal of Zhejiang University：Engineering Science

基　　金：浙江大学曹光彪技科发展基金重点资助项目 (2 2 3 2 9615 10 2 3 )

摘　　要：通过对不同锈蚀量的光面钢筋和变形钢筋进行拔出试验 ,得到了两种钢筋与混凝土的粘结性能随着不同钢筋锈蚀量的变化规律 ;根据试验结果的统计分析 ,给出了两种钢筋锈蚀后与混凝土的粘结强度计算公式 ;最后 ,还给出了锈蚀钢筋与混凝土的粘结本构关系 ,可用于具有锈蚀钢筋的混凝土结构的有限元分析 .Pullout tests were carried out to study the effect of reinforcement corrosion on the bond behavior between corroded steel bars and concrete. The bond strength of plain bars and concrete initially increases with increasing corrosion, and then declines. The turning points depend on the cracking of the concrete cover. The bond strength of deformed bars and concrete increases with corrosion up to a certain amount, but with progressive increase in corrosion, the bond strength decreases, and the creaking of concrete cover has no effect on the bond strength. On the basis of test data, the bond strength coefficient is recommended here, which can be used to easily calculate the bond strength of corroded steel bars and concrete. This paper also gives the bond stress-slip relationship between corroded bars and concrete, which can be used in the finite element analysis.

关 键 词：锈蚀钢筋 试验研究 钢筋混凝土结构 锈蚀量 粘结性能 有限元分析 粘结本构关系 粘结强度 

分 类 号：TU375.03[建筑科学—结构工程]