CFRP加固损伤RC柱抗震性能试验研究  

EXPERIMENTAL STUDY ON SEISMIC PERFORMANCE OF DAMAGED RC COLUMNS REINFORCED BY CFRP

作　　者：鄂婧 陈平[1] 付皓然 刘乔辉[1] 何宏伟 E Jing;CHEN Ping;FU Haoran;LIU Qiaohui;HE Hongwei(Harbin Cambridge College,Harbin 150069,China;Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China)

机构地区：[1]哈尔滨剑桥学院,哈尔滨150069 [2]中国地震局工程力学研究所,哈尔滨150080

出　　处：《低温建筑技术》2023年第10期73-76,84,共5页Low Temperature Architecture Technology

摘　　要：地震灾害后,大量的建筑结构需要进行修复及加固,为探究采用CFRP材料加固后的损伤混凝土柱抗震能力。文中开展了4个损伤混凝土柱的双向低周往复试验,分别从损伤现象、滞回曲线、骨架曲线、刚度退化曲线及延性方面探究加固后构件的抗震性能。试验结果显示,采用CFRP材料加固后构件的滞回曲线饱满;水平承载力,延性及刚度退化效果均大幅提高。表明方法是震后损伤建筑快速加固的优质方法之一。After seismic disasters,a large number of structures need to be repaired and reinforcement.Bidirectional low-cycle reciprocating tests on four columns are carried out to investigate the seismic performance of damaged con⁃crete columns after being reinforced with carbon fiber reinforced polymer(CFRP)materials.The post-reinforcement seismic performance of the components is explored from damage patterns,hysteresis curves,skeleton curves,stiff⁃ness degradation curves,and ductility.The experimental results indicate that the columns exhibits fuller hysteresis curves upon being reinforced with CFRP materials,in which horizontal load-bearing capacity,ductility,and stiff⁃ness degradation resistance improve substantially,indicating that this method is one of the high-quality methods for rapid reinforcement of damaged buildings after earthquakes.

关 键 词：CFRP材料 结构加固 低周往复试验 

分 类 号：TU32[建筑科学—结构工程]