玄武岩纤维加固震损混凝土框架节点承载力计算分析
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摘要
对5个不同损伤程度的框架节点采用玄武岩纤维加固后进行低周反复荷载试验。考虑混凝土框架节点受损修复后初始损伤的影响,提出构件修复后混凝土承载力折减系数;基于现行设计规范,建立玄武岩纤维加固混凝土框架节点考虑构件初始损伤的承载力计算公式,为震损混凝土构件的加固设计提供参考。
Low-cycle reverse loading tests are conducted on five varying degrees damage frame joints strengthened by BFRP.Considering initial damage on strengthening effect of repaired frame joints,bearing capacity reduction factor of repaired concrete is proposed.Bearing capacity design formulas considering initial damage of RC frame joints strengthened with BFRP are given,thereby providing references for evaluation of bearing capacity and reinforcing design of earthquake damaged members.
Low-cycle reverse loading tests are conducted on five varying degrees damage frame joints strengthened by BFRP.Considering initial damage on strengthening effect of repaired frame joints,bearing capacity reduction factor of repaired concrete is proposed.Bearing capacity design formulas considering initial damage of RC frame joints strengthened with BFRP are given,thereby providing references for evaluation of bearing capacity and reinforcing design of earthquake damaged members.
引文
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[2]朱伯龙.结构抗震试验[M].北京:地震出版社,1989Zhu Bo-long.Earthquake resistant test of building structure[M].Beijing:Seismological Press,1989(in Chinese)
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[4]姚谦峰,陈平.土木工程结构试验[M].北京:中国建筑工业出版社,2001Yao Qian-feng,Chen Ping.Civil engineering structure test[M].Beijing:China Construction Industry Press,2001(inChinese)
[5]JGJ101-96,建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997JGJ101-96,Code for test of building earthquake resistant[S].Beijing:China Archit-ecture Industry Press,1997(inChinese)
[6]JB50010-2001,混凝土结构设计规范[S].北京:中国建筑工业出版社,2003JB50010-2001,Code for design of concrete structures[S].Beijing:China Architecture Industry Press,2003(inChinese)
[7]洪涛.碳纤维加固震损混凝土框架节点抗震性能试验研究[D].上海:同济大学,2002Hong Tao.Experimental analysis on performance of damagedframe joints subassemblies strengthened by carbon fiberreinforced plastics[D].Shanghai:Tongji Universtity,2002(in Chinese)
[8]王传志,滕智明著.钢筋混凝土结构[M].重庆:重庆大学出版社,1989Wang Chuan-zhi,Teng Zhi-ming.Reinforced concretestructure[M].Chongqing:Chong qing University Press,1989(in Chinese)
[9]GB50011-2001,建筑抗震设计规范[S].北京:中国建筑工业出版社,2001GB50011-2001,Code for seismic design of buildings[S].Beijing:China Architecture Industry Press,2001(inChinese)
[10]肖小凌.震损框架节点玻璃钢加固抗震性能研究试验[D].上海:同济大学,2003Xiao Xiao-ling.Experimental analysis on performance ofdamaged frame joints subassemblies strengthened by glassfibre reinforced plastic[D].Shanghai:Tongji Unive-rsity,2003(in Chinese)
[11]GB50367-2006,混凝土结构加固技术规范[S].北京:中国建筑工业出版社,2006GB50367-2006,Technical specification for strengtheningconcrete structures[S].Beijing:China Construction IndustryPress,2006(in Chinese)
[12]游渊,傅建平.对抗震钢筋混凝土框架节点抗剪承载力计算公式的重新识别[J].重庆建筑大学学报,1997(2):14~24You Yuan,Fu Jian-ping.Re-recognition of shear capacitiesin joints of RC frames[J].Journal of Chongqing jianzhuUniversity,1997(2):14~24(in Chinese)
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