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玄武岩纤维加固震损三维混凝土框架节点抗震试验
引用本文:余江滔,苏磊,陆洲导,张克纯.玄武岩纤维加固震损三维混凝土框架节点抗震试验[J].同济大学学报(自然科学版),2011,39(1):18-24.
作者姓名:余江滔  苏磊  陆洲导  张克纯
作者单位:1. 同济大学,土木工程防灾国家重点实验室,上海,200092
2. 同济大学,结构工程与防灾研究所,上海,200092
3. 无锡高铁站商务区建设局,江苏,无锡,214105
基金项目:土木工程防灾国家重点实验室基金(SLDRCE09-D-02); 国家自然科学基金(50778134); 高等学校博士学科点专项科研基金(200802471089)
摘    要:通过5组三维混凝土框架节点试验,研究玄武岩纤维加固后节点的抗震性能.分别进行了模拟地震的预损伤试验、构件加固和加固后的低周反复试验,探讨不同损伤程度、不同裂缝处理方法对三维框架节点抗震性能的影响.通过对节点的滞回&骨架曲线、延性系数、承载力及刚度退化等参数分析可知:玄武岩纤维加固对提高节点承载力作用有限,但对提高抗震性能效果明显,节点的抗震性能恢复并超过了受损前,加固后节点由弱柱强梁转变成了强柱弱梁的破坏形式,说明该加固方法是合理而有效的.

关 键 词:地震损伤  抗震性能  三维框架节点  玄武岩纤维  损伤修复  
收稿时间:9/13/2009 2:28:10 PM
修稿时间:2010/11/17 0:00:00

Experimental Study on BFRP reinforced Pre damaged Concrete Beam Column Joints by Simulated Earthquake
YU Jiangtao,SU Lei,LU Zhoudao and ZHANG Kechun.Experimental Study on BFRP reinforced Pre damaged Concrete Beam Column Joints by Simulated Earthquake[J].Journal of Tongji University(Natural Science),2011,39(1):18-24.
Authors:YU Jiangtao  SU Lei  LU Zhoudao and ZHANG Kechun
Affiliation:YU Jiangtao1,SU Lei2,LU Zhoudao1,ZHANG Kechun3(1.State Key Laboratory of Disaster Reduction in Civil Engineering,Shanghai 200092,China,2.Research Institute of Structural Engineering and Disaster Reduction,Tongji University,3.Construction Bureau Business District High Speed Rail Station,Wuxi 214105,China)
Abstract:A total of five repaired beam-column joints(B-CJs) were pre-damaged under cyclic loads in order to study on the seismic behavior.The experimental study including pre-damage,rehabilitation and re-test under cyclic loads concentrated on the effect on different levels of pre-damage and epoxy injection.Through the test data,namely the hysteresis curves,ductility,ultimate strength and stiffness degradation,etc,the following conclusion is drawn that the rehabilitation with basalt fiber sheets has notable influenc...
Keywords:seismic damage  seismic performance  3D beam-column joint  basalt fiber reinforced polymer  rehabilitation of damage  
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