玄武岩纤维加固震损混凝土框架节点承载力计算分析  

Computational Analysis on Bearing Capacity of Earthquake Damaged RC Frame Joints Strengthened With BFRP

作　　者：欧阳利军[1] 余江滔[1] 张克纯 

机构地区：[1]同济大学结构工程与防灾研究所,上海200092 [2]无锡市锡山区安镇镇规划建设管理委员会,江苏无锡214100

出　　处：《工程抗震与加固改造》2009年第6期33-36,46,共5页Earthquake Resistant Engineering and Retrofitting

基　　金：国家自然科学基金项目(50578126);温州市科技计划项目(G20080053);新教师基金(200802471089)

摘　　要：对5个不同损伤程度的框架节点采用玄武岩纤维加固后进行低周反复荷载试验。考虑混凝土框架节点受损修复后初始损伤的影响,提出构件修复后混凝土承载力折减系数;基于现行设计规范,建立玄武岩纤维加固混凝土框架节点考虑构件初始损伤的承载力计算公式,为震损混凝土构件的加固设计提供参考。Low-cycle reverse loading tests are conducted on five varying degrees damage frame joints strengthened by BFRP.Considering initial damage on strengthening effect of repaired frame joints,bearing capacity reduction factor of repaired concrete is proposed.Bearing capacity design formulas considering initial damage of RC frame joints strengthened with BFRP are given,thereby providing references for evaluation of bearing capacity and reinforcing design of earthquake damaged members.

关 键 词：混凝土框架节点 玄武岩纤维 震损 承载力 

分 类 号：TU375.4[建筑科学—结构工程]