高性能水泥复合砂浆钢筋网加固震损RC框架节点抗震性能试验研究  

An Experimental Study on the Seismic Performance of RC Frame Joints Strengthened with High Performance Ferrocement Laminates

作　　者：龚鑫 蒋隆敏[1] 李鹤[1] 朱杰 GONG Xin;JIANG Longmin;LI He;ZHU Jie(College of Civil Engineering,Hunan University of Technology,Zhuzhou Hunan 412007,China)

机构地区：[1]湖南工业大学土木工程学院,湖南株洲412007

出　　处：《湖南工业大学学报》2021年第3期25-33,共9页Journal of Hunan University of Technology

基　　金：国家自然科学基金资助项目(51741804);湖南省自然科学基金株洲联合基金资助项目(2016JJ5037);湖南省自然科学基金资助项目(2020JJ4268)。

摘　　要：对1个对比框架节点和4个HPFL(high performance ferrocement laminates)加固法加固的震损程度不同的钢筋混凝土框架节点进行了拟静力加载试验,同时利用ANSYS进行有限元数值模拟分析,研究了HPFL对不同震损情况下的钢筋混凝土框架节点进行加固后抗震性能的改善情况,如破坏形式、耗能能力、承载能力、延性、刚度退化情况等。结果表明,加固后震损框架节点的抗震性能得到了有效改善,且加固效果随着震损程度的增大而被削弱。A quasi-static loading test has been carried out on one RC frame joint with different seismic damage degrees strengthened by HPFL(high performance ferrocement laminates)and a comparative frame joint;meanwhile,a finite element numerical simulation analysis has been carried out by using the ANSYS finite element numerical simulation analysis,followed by a research conducted on the improvement of seismic performance of reinforced concrete frame joints strengthened by HPFL under such different earthquake damage conditions as failure mode,energy dissipation capacity,bearing capacity,ductility,stiffness degradation,etc.

关 键 词：HPFL加固 震损框架节点 抗震性能 有限元分析 

分 类 号：TU375.4[建筑科学—结构工程]