摘要
通过6个足尺框架中节点(2个粘钢加固,2个碳纤维布加固,2个未加固)在低周反复荷载作用下对比试验,对比分析了节点区破坏特性和滞回曲线,以及节点区梁柱纵筋、混凝土、钢板和碳纤维布的应力水平。结果表明:粘钢加固能明显提高中节点抗剪承载力,碳纤维布加固能有效改善中节点的抗震性能。为改进和选择合理的框架中节点加固方案提供了试验依据。
Based on the contrast experiments of six full-scale non-seismic interior frames joints under low reversed cyclic load, consisting of two strengthened by Gluing Steels, two strengthened by CFRP and two unstrengthened, Contrast analyses were presented including the failure mode, hysteretic loop, and the stress of beam and column＇ s bars, concrete, gluing steels and CFRP. The results of study shows that the method of gluing steels strengthening increases the shear resistance of interior frames joints significantly, and the method of CFRP strengthening can improve the aseismic behavior of the ones effectively, These provide experimental guide for improving and choosing the more better interior frames joints strengthening project.
出处
《武汉理工大学学报》
EI
CAS
CSCD
北大核心
2007年第11期108-111,共4页
Journal of Wuhan University of Technology
关键词
粘钢
碳纤维布
加固
框架中节点
对比试验
gluing steel
CFRP
strengthen
interior frames joints
contrast experiment
