[1]史晓鹏,程 欣.薄柔H形截面钢构件短柱轴压试验研究[J].西安建筑科技大学学报(自然科学版),2022,54(05):675-683.[doi:10.15986/j.1006-7930.2022.05.005 ]
　SHI Xiaopeng,CHENG Xin.Experimental study on slender H-section steel stub columns under axial compression[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2022,54(05):675-683.[doi:10.15986/j.1006-7930.2022.05.005 ]
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薄柔H形截面钢构件短柱轴压试验研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
54
期数:
2022年05期
页码:
675-683
栏目:
出版日期:
2022-10-28

文章信息/Info

Title:
Experimental study on slender H-section steel stub columns under axial compression
文章编号:
1006-7930(2022)05-0675-09
作者:
史晓鹏; 程 欣
(太原理工大学 土木工程学院，山西 太原 030024)
Author(s):
SHI Xiaopeng;  CHENG Xin
(College of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China)
关键词:
H形截面钢构件;  轴压;  局部屈曲;  板件相关作用;  极限承载力
Keywords:
H-section steel members;  axial pressure;  local buckling;  plate interaction;  ultimate bearing capacity
分类号:
TU391
DOI:
10.15986/j.1006-7930.2022.05.005
文献标志码:
A
摘要:
随着轻钢结构的推广与应用，具有良好经济效益和环保性能的薄柔H形截面钢构件在轻量化低多层钢框架体系中的应用受到广泛关注.为研究薄柔H形截面钢构件的轴向力学性能，以宽厚比作为主要控制参数调整板件的相对强弱关系，采用Q355B钢材设计制作了6根焊接H形截面短柱，并对其进行了轴压试验.分析了试件的破坏过程、屈曲特征、延性以及极限承载力等.试验结果表明:不同宽厚比组配下H形截面钢构件局部屈曲特征差异明显，而局部屈曲特征直接影响了板件的应力发展; 同时构件的延性与宽厚比组配直接相关，呈现两种典型特征; 规范ANSI/AISC360-16对于薄柔H形截面轴压构件的计算结果偏于保守，合理的宽厚比组配下薄柔H形截面钢构件具有较强的屈曲后承载力.
Abstract:
With the popularization and application of light steel structures, the application of slender H-section steel components with good economic benefits and environmental performance in lightweight low-layer steel frame systems has attracted widespread attention. In order to study the axial mechanical properties of slender H-section steel members, the width-thickness ratio was used as the main control parameter to adjust the relative strength of the plates. Six welded H-section stub columns were designed and fabricated with Q355B steel, and axial compression tests were carried out. Based on the test results, the failure process, buckling characteristics, ductility and ultimate bearing capacity of specimens were analyzed. The test results show that the local buckling characteristics of H-section steel members with different width-thickness ratios are significantly different, and the local buckling characteristics directly affect the stress development of the plate. The ductility of the component is directly related to the combination of the width-thickness ratio, showing two characteristics. The calculation results of ANSI/AISC360-16 for slender H-section axial compression members are conservative, and with reasonable width-thickness ratio the slender H-section steel members can have strong post-buckling load-bearing capacity.

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备注/Memo

备注/Memo:
收稿日期:2021-07-13修改稿日期:2022-08-22
基金项目:国家自然科学基金面上项目(51978437); 山西省基础研究计划优秀青年培育项目(202103021222007)
第一作者:史晓鹏(1998—), 男, 硕士生, 主要从事钢结构的研究.E-mail:shixiaopengax@163.com
通信作者:程 欣(1986—), 女, 博士, 副教授, 主要从事钢结构的研究.E-mail:xchengtyut@126.com.
更新日期/Last Update: 2022-10-28