|本期目录/Table of Contents|

[1]李帼昌,韩刘.内置CFRP圆管的方钢管混凝土中长柱偏压试验[J].建筑科学与工程学报,2009,26(01):1-6.
　LI Guo-chang,HAN Liu.Experiment on Eccentrically Compression of Middle Long Columns of Concrete-filled Square Steel Tube with Inner CFRP Circular Tube[J].Journal of Architecture and Civil Engineering,2009,26(01):1-6.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
26卷
期数:
2009年01期
页码:
1-6
栏目:
出版日期:
2009-03-20

文章信息/Info

Title:
Experiment on Eccentrically Compression of Middle Long Columns of Concrete-filled Square Steel Tube with Inner CFRP Circular Tube
作者:
李帼昌，韩刘
沈阳建筑大学土木工程学院,辽宁沈阳110168
Author(s):
LI Guo-chang, HAN Liu
School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, Liaoning, China
关键词:
方钢管混凝土;  偏压构件;  CFRP圆管;  极限承载力;  长细比;  偏心距
Keywords:
concrete-filled square steel tube;  eccentrically compressed member;  CFRP circular tube;  ultimate bearing capacity;  slenderness ratio;  eccentricity
分类号:
TU392.3
DOI:
-
文献标志码:
A
摘要:
通过对10根内置碳纤维复合材料(CFRP)圆管的方钢管高强混凝土柱和4根方钢管高强混凝土柱的承载力进行对比试验,分析了CFRP含量、偏心距和长细比等参数对试件性能的影响。结果表明:在长细比相同的条件下,随着偏心距的增大,相同CFRP含量的方钢管高强混凝土柱承载力降低; 在长细比和偏心距相同的情况下,随着CFRP含量的增加,方钢管高强混凝土柱承载力有显著提高,对核心混凝土约束效应增加,增强了构件的延性; 随着长细比的增大,相同CFRP含量和相同偏心距的方钢管高强混凝土柱承载力降低。试验结果为进一步分析和推导承载力公式打下了基础。
Abstract:
Upon the contrast test of bearing capacities of ten columns of high-strength concrete-filled square steel tubes with inner carbon fiber reinforced polymer(CFRP)circular tube and four columns of high-strength concrete-filled square steel tubes, the influences of different parameters on the performance of test specimens were studied, from the analysis of test curves. The conclusion can be drawn that under the precondition of same slenderness ratio, the eccentricity increases, and the bearing capacity of column of high-strength concrete-filled square steel tube with the same content of CFRP reduces. Under the precondition of the same eccentricity and the same slenderness ratio, the content of CFRP increases, and the bearing capacity of the column of high-strength concrete-filled square steel tube obviously increases. The restraint effect on the core concrete increases, the yield time of structural member is prolonged. Under the precondition of the same eccentricity and the same content of CFRP, the slenderness ratio increases, and the bearing capacity of the column of high-strength concrete-filled square steel tube obviously reduces. The test results make good preparations for further formula derivation and research.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2008-11-11
基金项目:国家自然科学基金项目(50678106)
作者简介:李帼昌(1964-),女,辽宁昌图人,教授,博士研究生导师,工学博士,博士后,E-mail:cegcli@sjzu.edu.cn。
更新日期/Last Update: 2009-03-20