CFRP加固框架梁负弯矩区新方法的试验研究  

EXPERIMENTAL STUDY OF NEW METHOD OF CFRP REINFORCEMENT FRAME BEAM NEGATIVE MOMENT AREA

作　　者：王智巍 尹毓良 周静雅[3] 张鸿梅[3] 

机构地区：[1]机械工业第三设计研究院上海分院,上海200135 [2]中建五局辽宁公司,辽宁大连116000 [3]延边大学土木工程系,吉林延吉133002

出　　处：《建筑技术》2014年第9期810-814,共5页Architecture Technology

摘　　要：通过对3个利用半钢管对梁负弯矩区加固的CFRP进行锚固的技术加固的框架节点梁和1个未加固对比框架节点梁的受弯性能试验,结果表明与未加固试件相比,采用一层、二层、三层碳纤维布加固的试件极限荷载分别提高了23.1%,51.9%,71.2%,极限位移分别提高23.3%,91.7%,145%。采用有限元辅助软件对试验进行数值模拟及对比分析,证明加固后的框架梁具有承载力大和延性好等优点,且施工便捷、经济性好。The test produced four specimens,three of them used half steel pipe to anchor the CFRP of reinforcing beam negative moment area,another one without any treatment.The results show that：with single-layer,two-story,three CFRP reinforced specimen limit load relative to the unreinforced specimen were increased by23.1％,51.9％,71.2％,the ultimate displacement increased by23.3％,91.7％,145％.Ansys numerical simulation results and experimental data were analyzed to prove that reinforced frame beam has a large carrying capacity,good ductility and convenient construction,economy.

关 键 词：碳纤维布层数 力学性能 有限元 

分 类 号：TU375.1[建筑科学—结构工程]