[1]曹忠民,李爱群,王亚勇,等.钢绞线网片-聚合物砂浆加固空间框架节点试验[J].东南大学学报(自然科学版),2007,37(2):235-239.[doi:10.3969/j.issn.1001-0505.2007.02.011]
 Cao Zhongmin,Li Aiqun,Wang Yayong,et al.Experimental study on RC space beam-column joints strengthened with high strength steel wire mesh and polymer mortar[J].Journal of Southeast University (Natural Science Edition),2007,37(2):235-239.[doi:10.3969/j.issn.1001-0505.2007.02.011]
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钢绞线网片-聚合物砂浆加固空间框架节点试验()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
37
期数:
2007年第2期
页码:
235-239
栏目:
土木工程
出版日期:
2007-03-20

文章信息/Info

Title:
Experimental study on RC space beam-column joints strengthened with high strength steel wire mesh and polymer mortar
作者:
曹忠民13 李爱群1 王亚勇2 张蔚1 姚秋来2
1 东南大学土木工程学院, 南京 210096; 2 中国建筑科学研究院工程抗震研究所, 北京 100013; 3 华东交通大学土木建筑学院, 南昌 330013
Author(s):
Cao Zhongmin13 Li Aiqun1 Wang Yayong2 Zhang Wei1 Yao Qiulai2
1 School of Civil Engineering, Southeast University, Nanjing 210096,China
2 Institute of Earthquake Engineering, China Academy of Building Research, Beijing 100013, China
3 College of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China
关键词:
梁柱节点 加固 高强钢绞线网 聚合物砂浆 试验研究
Keywords:
beam-column joints strengthening high strength steel wire mesh polymer mortar experimental study
分类号:
TU377
DOI:
10.3969/j.issn.1001-0505.2007.02.011
摘要:
提出了采用新技术高强钢绞线网片-聚合物砂浆加固技术提高钢筋混凝土空间框架节点抗震性能的方法,并通过3个带有直交梁和楼板的空间框架节点试件的低周反复加载试验对该加固方法进行了检验.试验结果表明:加固能够有效地提高节点的极限受剪承载力22%左右,改变节点的破坏模式为梁端延性破坏,提高节点的延性系数到4以上,改善节点的承载力退化和刚度退化,提高节点的能量耗散能力,从而显著改善了梁柱节点的抗震性能.根据试验研究结果提出了该技术加固梁柱节点的设计和施工时的建议.
Abstract:
An innovative strengthening scheme for reinforced concrete space beam-column joints using high strength steel wire mesh and polymer mortar jacket was proposed, and the quasi-static tests of three reinforced concrete beam-column joints with floor slab and transverse beams were performed to verify the efficiency of the strengthening scheme. The experimental results show that the seismic behavior of strengthened joints is improved significantly by the scheme, which successfully enhances the shear capacity by about 22%, transforms the failure mode to be ductile, raises the ductility coefficient over 4, delays the strength degradation and stiffness degradation, and upgrades the energy dissipation capacity. Finally, some suggestion is put forward for design and construction about using the technique to strengthen beam-column joint.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 建设部研究开发资助项目(05-k4-18).
作者简介: 曹忠民(1972—),男,博士生,副教授; 李爱群(联系人),男,博士,教授, 博士生导师, aiqunli@sina.com.
更新日期/Last Update: 2007-03-20