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CFRP加固混凝土短方柱抗震性能试验研究
引用本文:魏洋,吴刚,吴智深,蒋剑彪,顾冬生. CFRP加固混凝土短方柱抗震性能试验研究[J]. 工程抗震与加固改造, 2007, 29(1): 33-38,18
作者姓名:魏洋  吴刚  吴智深  蒋剑彪  顾冬生
作者单位:1. 东南大学土木工程学院,江苏,南京,210096
2. 东南大学土木工程学院,江苏,南京,210096;日本茨城大学工学部,日立,316-8511
3. 北京特希达科技集团,北京,100011
基金项目:教育部长江学者奖励计划 , 江苏省自然科学基金 , 教育部留学回国人员科研启动基金
摘    要:本文通过5根CFRP加固钢筋混凝土短方柱在低周反复荷载下的试验,研究了CFRP加固后钢筋混凝土短柱的抗震性能,讨论了CFRP加固量对试件抗震性能的影响.结果表明,CFRP加固可以转变钢筋混凝土短方柱的破坏模式,有效提高其抗震性能;随着CFRP加固量的增加,试件峰值荷载提高是有限度的,但其延性、耗能能力、后期强度退化可以持续得到显著改善.

关 键 词:短方柱  CFRP  加固  延性  抗震性能
文章编号:1002-8412(2007)01-0033-06
修稿时间:2006-06-23

Experimental Research on Seismic Behavior of Reinforced Concrete Short Square Columns Strengthened with CFRP
Wei Yang,Wu Gang,Wu Zhi-shen,Jiang Jian-biao,Gu Dong-sheng. Experimental Research on Seismic Behavior of Reinforced Concrete Short Square Columns Strengthened with CFRP[J]. Earthquake Resistant Engineering and Retrofitting, 2007, 29(1): 33-38,18
Authors:Wei Yang  Wu Gang  Wu Zhi-shen  Jiang Jian-biao  Gu Dong-sheng
Affiliation:1. College of Civil Engineering, Southeast University, Nanjing 210096, China; 2. Department of Urban University, Hitachi 316-8511, Japan; 3. Beijing Texida Technology Group, Beijing 100011, China
Abstract:Five reinforced concrete(RC) short square columns are tested under cyclic loading to investigate the seismic performance of short columns strengthened with CFRP composites in this paper.The effects of the amount of CFRP on the seismic behavior of RC short square columns are studied.The test results shows that the failure mode can be changed and the seismic behavior can be reformed effectively for RC short square columns strengthened with CFRP.With the increase of the amount of CFRP,the lateral peak load can only be enhanced within limits,but ductility,energy dissipation and the later carrying capacity degradation are improved significantly in succession for short columns.
Keywords:short square columns   CFRP   retrofit   ductility    seismic behavior
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