期刊文献+

CFRP和角钢共同加固损伤钢筋混凝土柱的抗震试验分析 被引量:7

Experimental analysis on seismic behavior of injury RC column strengthened with CFRP sheets and angle steel
原文传递
导出
摘要 针对柱身已开裂、柱底固定端已形成塑性铰的严重损伤的4个钢筋混凝土柱,提出采用沿柱高粘贴CFRP布箍和底部固定端反贴角钢的共同加固新方法,可以达到既加固钢筋混凝土柱身,又使柱底重新成为固定端的目的。然后,对已进行加固的4根柱进行模拟地震作用的水平低周反复荷载试验,研究不同肢长和肢厚的角钢对加固试件抗震性能的影响。基于试验结果,分析了各试件的裂缝发展和抗震能力;绘出了试件的滞回曲线和骨架曲线。结果表明,CFRP布和角钢共同加固的损伤钢筋混凝土柱,其抗震能力随着角钢肢长的增加而增大;角钢厚度的变化对其承载力提高无影响;共同加固后的柱具有良好的抗震性能。 The new method that composited strengthened by CFRP hoops along the columns and angle steels at the end of the columns was advanced for serious injury 4 R.C columns with crack and plastic hinges at the end.Then,the experiments were done under low-cyclic and repeated load for the strengthened columns.The seismic performances of the strengthened columns about different limb length and limb thick of angles steel were studied.Based on test results,the cracks development and the anti-seismic capacity of the specimens were analyzed,and the skeleton curve and hysteresis curve of the sample were drawn out.The results show that the injury RC columns are composited strengthened by CFRP hoops and angle steels with a better capacity.The longer angle steel’s limb is,the higher the capacity of the composited strengthened columns is.But it didn’t influence for the limb’s thickness.The columns composited strengthened possess a good seismic performance.
出处 《建筑结构》 CSCD 北大核心 2010年第S2期376-378,322,共4页 Building Structure
基金 河南省重点科技攻关项目(092102310036)
关键词 损伤钢筋混凝土柱 CFRP布和角钢复合加固 抗震性能 水平低周反复荷载 injury RC columns composite strengthened by CFRP sheets and angle steel seismic performance low-cycle and repeated load
  • 相关文献

参考文献2

二级参考文献11

  • 1王步,王溥,夏春红.核心区外碳纤维布增强混凝土框架节点抗剪性能试验研究与机理分析[J].工业建筑,2005,35(7):29-33. 被引量:14
  • 2岳清瑞.我国碳纤维布织物加固混凝土结构的研究现状和展望[J].混凝土及水泥制品,2000,.
  • 3颜卫亨 张兴武.轴压方型钢管混凝土柱的承载力计算[J].工业建筑,1989,(11).
  • 4JGJ101-96.建筑抗震试验方法规程[S].[S].,..
  • 5MANDER J B , PRIESTLEY M J N, PARK R. Theoretical stress-strain model for confined concrete[J]. Journal of Structural Engineering, ASCE , 1988, 114 (8) : 1804 - 1826.
  • 6FARDIS M, KHALILI H. FRP-encased concrete as a structural materials[J]. Magazine of Concrete Research, 1982, 34(121): 191 -202.
  • 7SAADATMANESH H, EHSANI M R, LI M W. Strength and ductility of concrete columns externally reinforced with fiber composite straps[J]. ACI Structural Journal, July-August, 1994,91 (4): 434 - 447.
  • 8SAATCIOGLU M, RAZVI S R. Strength and ductility of confined concrete[J]. Journal of Structural Engineering, ASCE,1992, 118(6): 1590 - 1607.
  • 9SAMAAN M, MIRMIRAN A, SHAHAWY M. Model of concrete confined by fiber composites[J]. Journal of Structural Engineering, 1998 , 126(9): 1025 - 1031.
  • 10GB50152-92.混凝土结构试验方法标准[S].[S].,..

共引文献31

同被引文献43

引证文献7

二级引证文献30

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部