| 高强钢绞线网-聚合物砂浆抗震加固框架梁柱节点的试验研究 |
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| 引用本文： | 曹忠民,李爱群,王亚勇,姚秋来. 高强钢绞线网-聚合物砂浆抗震加固框架梁柱节点的试验研究[J]. 建筑结构学报, 2006, 27(4): 10-15 |
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| 作者姓名： | 曹忠民 李爱群 王亚勇 姚秋来 |
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| 作者单位： | 东南大学,土木工程学院,江苏南京,210096;华东交通大学,土木建筑学院,江西南昌,330013;东南大学,土木工程学院,江苏南京,210096;中国建筑科学研究院,工程抗震研究所,北京,100013 |
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| 摘 要： | 进行了4个采用高强钢绞线网-聚合物砂浆加固的钢筋混凝土框架节点和1个对比节点的低周反复荷载试验,比较了4种加固方案的破坏形态、承载力、延性和刚度退化等抗震性能。研究结果表明:采用高强钢绞线网-聚合物砂浆加固后,节点的极限受剪承载力提高了19%左右,破坏形态更加具有延性特征。分析了相应的加固机理,并提出了高强钢绞线网-聚合物砂浆加固钢筋混凝土框架节点受剪承载力的计算方法,计算结果与试验结果符合良好。
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| 关 键 词： | 梁柱节点 加固 高强钢绞线网 聚合物砂浆 试验研究 |
| 文章编号： | 1000-6869(2006)04-0010-06 |
| 收稿时间： | 2006-08-05 |
| 修稿时间： | 2005-11-01 |
Experimental study on beam-column connections strengthened with high-strength steel wire mesh and polymer mortar |
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| CAO Zhongmin,LI Aiqun,WANG Yayong,YAO Qiulai. Experimental study on beam-column connections strengthened with high-strength steel wire mesh and polymer mortar[J]. Journal of Building Structures, 2006, 27(4): 10-15 |
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| Authors: | CAO Zhongmin LI Aiqun WANG Yayong YAO Qiulai |
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| Affiliation: | CAO Zhongmin~(,),LI Aiqun~,WANG Yayong~,YAO Qiulai~(.College of Civil Engineering,Southeast University,Nanjing,China,.Institute of Earthquake Engineering,China Academy of Building Research,Beijing,China,.College of Civil Engineering,East China Jiaotong University,Nanchang,China) |
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| Abstract: | Four beam-column model connections strengthened with highstrength steel wire mesh and polymer mortar and one control model with nonductile reinforcement details were tested under reversed cyclic loading to study the effect of seismic retrofit.Comparisons of the ultimate strength,ductility,failure mode,and stiffness degradation of the strengthened and the control models showed the beneficial effects of the wire mesh and mortar.The shear-resisting capacity of strengthened connections was increase up to 19%,and the brittle joint shear failure mode was transformed into ductile failure mode with plastic hinging at beam ends.Based on the analysis of the strengthening mechanism,a method was proposed for calculating the shear strength of the beam-column connections strengthened with steel wire mesh and polymer mortar. |
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| Keywords: | beam-column joints seismic strengthening steel wire mesh polymer mortar experimental study |
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