玻璃纤维片材加固混凝土梁柱节点的抗震性能研究  

Study on Seismic Behavior of RC Beam-column Joint Strengthened with GFRP Sheet

作　　者：欧阳煜[1] 黄奕辉[2] 钱在兹[3] 

机构地区：[1]上海大学 [2]华侨大学,福州362011 [3]浙江大学,杭州310027

出　　处：《建筑结构》2003年第5期54-58,共5页Building Structure

基　　金：福建省科委工业基金重点课题 (98 Z 3 5 );福建省建委课题(JK 99 10 )资助

摘　　要：进行了 6个玻璃纤维 (GFRP)片材加固混凝土梁柱节点在低周反复荷载作用下的试验研究 ,结果表明GFRP片材加固节点是一个有效的加固方法 ,节点的抗剪强度和延性比加固前有较大的提高。基于试验结果提出了考虑混凝土、箍筋、GFRP片材共同作用的节点抗剪承载力计算方法。Six full scale concrete beam column joints externally wrapped by GFRP sheet under the cyclic reversed loading are tested for seismic strengthening.The experiment results indicate that this strengthening technique is highly effective.Both shear strength and displacement ductility of the joints strengthened with GFRP sheet are higher than those of the original joints.A method to calculate ultimate shear capacity of beam column joint core region is presented,with consideration of the actions of concrete,steel hoop and GFRP sheet.The results agree well with the experimental results.

关 键 词：玻璃纤维片材 加固 混凝土 梁 柱 节点 抗震性能 反复荷载 承载力 抗剪强度 

分 类 号：TU375.1[建筑科学—结构工程]