BFRP加固榫卯节点抗震性能试验研究  

Experimental study on seismic performance of mortise-tenon joints strengthened by BFRP

作　　者：法冠喆[1] 王全凤[1] 

机构地区：[1]华侨大学土木工程学院,泉州362021

出　　处：《建筑结构》2012年第4期152-156,共5页Building Structure

基　　金：澳门特别行政区科学技术发展基金课题(524/263/SAF/2008);泉州市科技计划项目(2006G7)

摘　　要：通过玄武岩纤维增强复合材料(BFRP)加固圆形截面木结构榫卯节点的水平低周反复荷载试验,对加固后榫卯节点的抗震性能进行了研究,主要包括滞回曲线、骨架曲线、强度和刚度退化规律、变形等。试验结果表明,BFRP加固榫卯节点的滞回曲线和未加固榫卯节点的滞回曲线图形明显不同,BFRP加固能够有效提高榫卯节点的承载力和刚度。根据榫卯节点刚度和极限承载力提高的比例,提出了BFRP加固榫卯节点的加固设计经验公式。Low-cyclic reversed loading tests were conducted on mortise-tenon joints strengthened by basalt fiber reinforced polymer（BFRP）.Seismic properties including.The failure characteristics,hysteretic curve and skeleton curve,degeneration of strength and stiffness,deformation,were studied.The results indicate that the hysteresis curve were markedly different after strengthened by BFRP,BFRP can improve the bearing capacity and stiffness.According to increasing ratio of stiffness and ultimate bearing capacity for mortise-tenon joints,the formulas for mortise-tenon joints reinforced by BFRP were presented.

关 键 词：榫卯节点 BFRP 加固 低周反复荷载 木结构 抗震性能 

分 类 号：TU366.2[建筑科学—结构工程]