[1]徐进,蔡健.圆形钢套管加固方形混凝土柱轴心受压性能[J].东南大学学报(自然科学版),2006,36(4):580-584.[doi:10.3969/j.issn.1001-0505.2006.04.018]
 Xu Jin,Cai Jian.Behaviour of square reinforced concrete column strengthened by circular steel jacket under axial loading[J].Journal of Southeast University (Natural Science Edition),2006,36(4):580-584.[doi:10.3969/j.issn.1001-0505.2006.04.018]
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圆形钢套管加固方形混凝土柱轴心受压性能()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
36
期数:
2006年第4期
页码:
580-584
栏目:
土木工程
出版日期:
2006-07-20

文章信息/Info

Title:
Behaviour of square reinforced concrete column strengthened by circular steel jacket under axial loading
作者:
徐进 蔡健
华南理工大学土木工程系, 广州 510640
Author(s):
Xu Jin Cai Jian
Department of Civil Engineering, South China University of Technology, Guangzhou 510640, China
关键词:
加固 圆形钢套管 混凝土柱 轴压
Keywords:
retrofitting circular steel jacketing reinforced concrete column axial loading
分类号:
TU375
DOI:
10.3969/j.issn.1001-0505.2006.04.018
摘要:
为研究圆形钢套管加固混凝土柱的基本力学性能,进行了1根未加固的普通钢筋混凝土柱和10根圆形钢套管加固的混凝土短柱在不同加固钢套管厚度及初始轴压比下轴心受压试验,初始轴力通过对未加固试件施加后张预应力来进行模拟; 在试验研究的基础上,根据应变协调原则对加固后构件轴压承载力进行了数值分析.研究结果表明,加固构件的承载力随着钢套管厚度的增加而增加,初始轴压比的变化对加固后构件的承载力影响不显著,且理论分析结果与试验结果吻合较好.
Abstract:
To study the basic mechanical performance of reinforced concrete column strengthened by circular steel jacket, a set of experimental work was carried out. 1 contrast unstrengthened square reinforced concrete column and 10 reinforced concrete columns strengthened by circular steel jacket were tested under axial loading. The primary parameters of the strengthened columns are original axial load ratio and steel jacket thickness. Post prestressing force was supplied to the columns before they were strengthened to analogue the original axial load. Based on the experimental research, the axial bearing capacity of the strengthened columns is analyzed numerically according to deformation compatibility. The results show that the axial bearing capacity increases with the increase of the steel jacketing thickness, and the original axial pressure ratio has no obvious effects on the axial bearing capacity. The numerical results agree well with the experimental results.

参考文献/References:

[1] 万墨林,韩继云.混凝土结构加固技术[M].北京:中国建筑工业出版社,1995.
[2] 范锡盛,曹薇,岳清瑞.建筑物改造和维修加固新技术[M].北京:中国建材工业出版社,1999.
[3] Chai Y H,Priestley M J N,Seible F.Seismic retrofit of circular bridge column for enhanced flexural performance [J].ACI Structural Journal,1991, 88(5):572-584.
[4] Priestley M J N,Seible F,Xiao Y,et al.Steel jacket retrofitting of reinforced concrete bridge columns for enhanced shear strength — part 1:theoretical considerations and test design [J]. ACI Structural Journal,1994,91(4):394-405.
[5] Priestley M J N,Seible F,Xiao Y,et al.Steel jacket retrofitting of reinforced concrete bridge columns for enhanced shear strength — part 2:test results and comparison with theory [J]. ACI Structural Journal,1994,91(5):537-551.
[6] Xiao Y,Priestley M J N,Seible F.Seismic assessment and retrofit of bridge column footings [J]. ACI Structural Journal,1996,93(1):79-94.
[7] 吕西林,金国芳,吴晓涵.钢筋混凝土结构非线性有限元理论与应用[M].上海:同济大学出版社,1997.
[8] 韩林海,冯九斌.混凝土的本构关系模型及其在钢管混凝土数值分析中的应用[J].哈尔滨建筑大学学报,1995,28(5):26-32.
  Han Linhai,Feng Jiubin.Constitutive relations of concrete and its applications in the integral analysis of concrete filled steel tube[J].Journal of Harbin University of Architecture and Engineering,1995,28(5):23-28.(in Chinese)

相似文献/References:

[1]何初生,王文炜,杨威,等.预应力CFRP布加固钢筋混凝土梁疲劳性能试验研究[J].东南大学学报(自然科学版),2011,41(4):841.[doi:10.3969/j.issn.1001-0505.2011.04.035]
 He Chusheng,Wang Wenwei,Yang Wei,et al.Experimental study on fatigue behavior of reinforced concrete beams strengthened by prestressed CFRP sheets[J].Journal of Southeast University (Natural Science Edition),2011,41(4):841.[doi:10.3969/j.issn.1001-0505.2011.04.035]

备注/Memo

备注/Memo:
基金项目: 广东省自然科学基金资助项目(990565,020965).
作者简介: 徐进(1970—),女,博士生; 蔡健(联系人),男,博士,教授,博士生导师,cvjcai@scut.edu.cn.
更新日期/Last Update: 2006-07-20