[1]吴阳峰,刘俊,张鸿梅*.外套钢管加固受损钢管混凝土短柱轴压试验研究[J].延边大学学报(自然科学版),2014,40(04):352-356.
　WU Yangfeng,LIU Jun,ZHANG Hongmei*.Experimental study of axial compression on the damaged concrete filled steel tubular short column strengthened by outerwear steel pipe[J].Journal of Yanbian University,2014,40(04):352-356.
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外套钢管加固受损钢管混凝土短柱轴压试验研究

《延边大学学报(自然科学版)》[ISSN:1004-4353/CN:22-1191/N] 卷: 第40卷 期数: 2014年04期 页码: 352-356 栏目: 应用科学研究 出版日期: 2014-12-20
Title:
Experimental study of axial compression on the damaged concrete filled steel tubular short column strengthened by outerwear steel pipe
作者:
吴阳峰1;  刘俊2;  张鸿梅1*
1.延边大学工学院 土木工程系; 2.延边建设工程质量检测鉴定有限公司: 吉林 延吉 133002
Author(s):
WU Yangfeng1;  LIU Jun2;  ZHANG Hongmei1*
1.Department of Civil Engineering, College of Engineering, Yanbian University, Yanji 133002, China; 2.Yanbian Construction Engineering Quality Detection Appraisal Co.Ltd., Yanji 133002, China
关键词:
钢管混凝土短柱;  损伤;  外套钢管;  加固;  轴压承载力
Keywords:
CFST short column;  damage;  outerwear steel pipe;  strengthened;  axial compression bearing capacity
分类号:
TU398+.9
文献标志码:
A
摘要:
为了研究受损钢管混凝土短柱加固前后的力学性能,对13根采用外套钢管加固的受损钢管混凝土短柱进行试验研究.试验通过改变试件损伤率、外套钢管壁厚等变化参数,考察试件破坏形态以及变形情况,进而分析这些参数对加固前后受损钢管混凝土试件的影响.结果表明:当损伤率小于10%时,外套钢管对试件承载力的影响不大,只是在后期延性方面影响较大; 随着外套钢管壁厚的增大,加固试件承载力是受损试件承载力的1.9～2.5倍.
Abstract:
In order to study the mechanics performance of the damaged concrete filled steel tubular short column before and after the reinforcement, thirteen damaged concrete filled steel tubular short column strengthened by outerwear steel pipe were designed for the axial compressive experiment research. During the test we changed the damaged rate, outer pipe wall thickness to observe the failure modes and deformation to analyze the impact of these factors on the damaged specimens before and after reinforcement. The results show that: when the damage rate is less than 10%, there has little effect on the carrying capacity of the specimens. Only affect large areas in the late ductility. With the increase of the wall thickness of the outerwear steel pipe, the bearing capacity of reinforced specimen is about 1.9～2.5 times of the damaged specimens.

参考文献/References:

[1] 宋中南.我国混凝土结构加固修复业技术现状与发展对策[J].混凝土,2002,10(156):10-11.
[2] 韦江萍.CFRP加固钢管混凝土轴心受压短柱承载力分析[J].工程抗震与加固改造,2009,31(4):66-70.
[3] 董江峰,侯敏,王清远.何东碳纤维布加固薄壁钢管再生混凝土短柱的力学性能[J].四川大学学报:工程科学版,2012,44(1):255-260.
[4] 顾威,李宏男,孙国帅.CFRP加固受损钢管混凝土轴压柱试验研究[J].建筑材料学报,2013(1):138-142.
[5] 李辉.FRP加固钢管混凝土圆柱轴压性能研究[D].广州:广东工业大学,2013:6-7.
[6] 林晓康,韩林海.火灾后方钢管混凝土柱抗震加固方法初探[J].哈尔滨工业大学学报,2005,37(增刊):434-437.
[7] 于洋.钢管混凝土结构外包加固承载力实验及分析研究[D].重庆:重庆交通大学,2010:71-72.
[8] 李冉.CFRP-超薄壁圆钢管混凝土短柱轴压试验研究[D].延吉:延边大学,2014:18.

备注/Memo

收稿日期: 2014-05-27作者简介: 张鸿梅(1959—),女,教授,研究方向为结构耐久性评定检测与加固.

更新日期/Last Update: 2014-12-20