[1]饶玉龙,张继承,李勇,等.高强冷弯矩形钢管混凝土短柱轴压承载力试验[J].华侨大学学报(自然科学版),2019,40(3):338-343.[doi:10.11830/ISSN.1000-5013.201812011]
　RAO Yulong,ZHANG Jicheng,LI Yong,et al.Experiment on Mechanical Behavior of Concrete-Filled High-Strength Cold-Formed Steel Tube Short Column Under Axial Load[J].Journal of Huaqiao University(Natural Science),2019,40(3):338-343.[doi:10.11830/ISSN.1000-5013.201812011]
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高强冷弯矩形钢管混凝土短柱轴压承载力试验()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第40卷
期数:
2019年第3期
页码:
338-343
栏目:
出版日期:
2019-05-20

文章信息/Info

Title:
Experiment on Mechanical Behavior of Concrete-Filled High-Strength Cold-Formed Steel Tube Short Column Under Axial Load
文章编号:
1000-5013(2019)03-0338-06
作者:
饶玉龙1;  张继承1;  李勇1;  黄泳水1;  李迪2
1. 长江大学 城市建设学院结构工程与防灾研究所, 湖北 荆州 434023;2. 武汉市汉阳市政建设集团有限公司, 湖北 武汉 430050
Author(s):
RAO Yulong1;  ZHANG Jicheng1;  LI Yong1;  HUANG Yongshui1;  LI Di2
1. Research Institute of Structural Engineering and Disaster Reduction, School of Urban Construction, Yangtze University, Jingzhou 434023, China; 2. Wuhan Hanyang Municipal Construction Group Company Limited, Wuhan 430050, China
关键词:
高强冷弯钢管混凝土短柱;  轴心受压;  参数分析;  极限承载力
Keywords:
concrete-filled high-strength cold-formed steel tube short column;  axial compression;  parameter analysis;  ultimate bearing capacity
分类号:
TU398;U441
DOI:
10.11830/ISSN.1000-5013.201812011
文献标志码:
A
摘要:
为研究高强冷弯矩形钢管混凝土(CFHCST)短柱在轴向荷载作用下的承载力,以钢管壁厚、钢材强度和截面尺寸3个不同参数进行实验.实验记录相关破坏现象,并分析试件荷载-位移和荷载-应变曲线在不同参数下的变化.结果表明:CFHCST短柱在承受轴向荷载时,实验过程主要描述弹性、弹塑性和破坏3个阶段,其与普通钢管混凝土短柱的工作机理大致相同;宽厚比的取值越小,构件的延性越低,但核心混凝土受到外部钢管的约束作用增大,且构件的极限承载能力也得到提高;长宽比越小,构件延性越低,但构件承载力增强;随着钢材强度的提高,构件极限承载力提升较为明显,但构件延性却降低.
Abstract:
The mechanical properties of Concrete-filled high-strength cold-formed steel tube(CFHCST)short column was studied under axial load for 3 parameters, including the wall thickness of the tube, the strength of the steel and the dimensions of the section. The damage in the experiment, the variation of load-displacement curve and load-strain curve under different parameters were analyzed. The results show that the experimental process of CFHCST short column under axial load is divided into three stages, namely the mainly elastic, elastic-plastic and broken stages, which is similar to the common steel tube short column. As the ratio of width to thickness decreases, the ductility of the specimen decreases, but the confinement of the steel tube to the core concrete increases, and the ultimate bearing capacity also increases. As the aspect ratio decreases, the ductility of the specimen decrease, and the bearing capacity increases. As the strength of steel increases, the ultimate bearing capacity increases obviously, but ductility decreases.

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备注/Memo

备注/Memo:
收稿日期: 2018-11-08
通信作者: 张继承(1976-),男,副教授,博士,主要从事钢-混凝土组合结构理论与设计的研究.E-mail:100995@yangtzeu.edu.cn.
基金项目: 国家自然科学基金资助项目(51778065); 湖北省教育厅科学技术研究项目(D20151304)http://www.hdxb.hqu.edu.cn
更新日期/Last Update: 2019-05-20