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[1]王吉忠,刘建伟,杨 柳.CFRP-钢复合管约束型钢高强混凝土短柱的轴压力学性能[J].建筑科学与工程学报,2017,34(02):48-55.
 WANG Ji-zhong,LIU Jian-wei,YANG Liu.Mechanical Behavior of CFRPsteel Composite Tube Confined Steel High Strength Reinforced Concrete Stub Columns Under Axial Compression[J].Journal of Architecture and Civil Engineering,2017,34(02):48-55.
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CFRP-钢复合管约束型钢高强混凝土短柱的轴压力学性能(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
34卷
期数:
2017年02期
页码:
48-55
栏目:
出版日期:
2017-03-30

文章信息/Info

Title:
Mechanical Behavior of CFRPsteel Composite Tube Confined Steel High Strength Reinforced Concrete Stub Columns Under Axial Compression
作者:
王吉忠刘建伟杨 柳
大连理工大学结构工程研究所
Author(s):
WANG Ji-zhong LIU Jian-wei YANG Liu
Institute of Structural Engineering, Dalian University of Technology
关键词:
CFRP-钢复合管承载力轴压高强混凝土短柱
Keywords:
CFRP-steel composite tube bearing capacity axial compression high strength reinforced concrete stub column
分类号:
-
DOI:
-
文献标志码:
A
摘要:
对8根碳纤维增强复合材料(CFRP)-圆/方钢复合管约束型钢高强混凝土(C-C/STCSRC)短柱和4根CFRP约束圆钢管型钢高强混凝土(C-CTSRC)短柱进行了轴压试验,分析了CFRP约束效应系数、钢管截面形式以及钢管受力性能对CFRP-圆/方钢复合管约束型钢高强混凝土(C-C/STCSRC)轴压短柱力学性能的影响。结果表明:CFRP-圆钢复合管约束型钢高强混凝土(C-CTCSRC)轴压短柱的极限承载力提高率随着约束效应系数的增加呈指数形式增长;在柱核心混凝土截面面积相同时,CFRP-圆钢复合管约束型钢高强混凝土(C-CTCSRC)轴压短柱的极限承载力比CFRP-方钢复合管约束型钢高强混凝土(C-STCSRC)轴压短柱的极限承载力高50%以上;在弹性工作阶段,CFRP约束圆钢管型钢高强混凝土(C-CTSRC)柱的弹性模量高于CFRP-圆钢复合管约束型钢高强混凝土(C-CTCSRC)柱的弹性模量;CFRP-圆钢复合管约束型钢高强混凝土(C-CTCSRC)柱的极限承载力高于CFRP约束圆钢管型钢高强混凝土柱的极限承载力;CFRP与钢管黏结良好时,CFRP与钢管能够协同工作。
Abstract:
The axial compression tests of 8 carbon fiber reinforced polymer (CFRP)-circular/square steel composite tube confined steel high strength reinforced concrete (C-C/STCSRC) stub columns and 4 CFRP confined circular steel tube steel high strength reinforced concrete (C-CTSRC) stub columns were carried out. The effects of constraint coefficient of CFRP, section form of steel tube and mechanical performance of steel tube on the mechanical behavior of C-C/STCSRC columns were investigated. The results show that the ultimate bearing loading capacity of CFRP circular steel composite tube confined steel high strength concrete (C-CTCSRC) stub columns increases with constraint coefficient as exponential form. The ultimate bearing capacity of C-CTCSRC is 50% larger than that of CFRP square steel composite tube confined steel high strength reinforced concrete when the section areas of column core concretes are same. The elastic modulus of CFRP confined circular steel tube steel high strength reinforced concrete stub columns (C-CTSRC) is higher than that of C-CTCSRC during the elastic stage. The ultimate bearing loading capacity of C-CTCSRC is higher than that of C-CTSRC. The results also indicate that CFRP and steel tube can work together when they are bound well.

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备注/Memo

备注/Memo:
更新日期/Last Update: 2017-03-30