角钢和碳纤维布复合加固损伤框架抗震试验研究  

Experiment Study on Seismic Behavior of Seriously Damaged Reinforced Concrete Framework Strengthened with CFRP Sheets and Angle Steel

作　　者：王新玲[1] 王坤[1] 牛学娇[1] 闫超[1] 

机构地区：[1]郑州大学土木工程学院,河南郑州450001

出　　处：《郑州大学学报（工学版）》2010年第2期5-8,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：河南省重点科技攻关项目(092102310036)

摘　　要：为了探讨震后损伤混凝土结构加固方案的优化,对两榀严重损伤的钢筋混凝土框架用角钢和碳纤维布进行复合加固(JKJ-A、JKJ-B),并对其进行模拟地震作用下的水平低周反复荷载试验.试验结果表明,随着节点角钢肢长的增大,复合加固框架的耗能能力和承载力增强,复合加固损伤框架与仅用碳纤维布加固的损伤混凝土框架相比有更好的承载能力.随着节点加固角钢肢长的增加,加固框架的抗震能力提高.In order to explore reinforcement optimization for damaged reinforced concrete frameworks after earthquakes,two seriously damaged reinforced concrete frameworks（JKJ-A and JKJ-B） were compound strengthened by angle steel and CFRP sheets,and then,the experiments were done under seismic behavior of low level of cyclic loading.Based on the test,with the change of angle steel length,we compound strengthened frameworks to enhance energy dissipation capacity and bearing capacity.The compound strengthened frameworks had better bearing capacity than the framework strengthened only by CFRP sheets.The change of angle steel length in the framework of the ductile reinforcement hadn＇t obvious effect.

关 键 词：钢筋混凝土框架 复合加固 水平低周反复荷载 抗震性能 

分 类 号：TU375.3[建筑科学—结构工程]