[1]黄玉宁、郑永乾、赖鹏松.不同加载角T形钢管混凝土压弯承载力研究[J].福建工程学院学报,2020,18(04):329-335.[doi:10.3969/j.issn.1672-4348.2020.04.005]
　HUANG Yuning,ZHENG Yongqian,LAI Pengsong.Study on bearing capacity of T-shaped concrete-filled steel tubular 〖JZ〗members considering different loading angles[J].Journal of FuJian University of Technology,2020,18(04):329-335.[doi:10.3969/j.issn.1672-4348.2020.04.005]
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不同加载角T形钢管混凝土压弯承载力研究()
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《福建工程学院学报》[ISSN:2097-3853/CN:35-1351/Z]

卷:
第18卷
期数:
2020年04期
页码:
329-335
栏目:
出版日期:
2020-08-25

文章信息/Info

Title:
Study on bearing capacity of T-shaped concrete-filled steel tubular 〖JZ〗members considering different loading angles
作者:
黄玉宁、郑永乾、赖鹏松
福建工程学院土木工程学院
Author(s):
HUANG Yuning; ZHENG Yongqian; LAI Pengsong
Fujian-Taiwan Cooperative Institute of Civil Engineering Technology in Colleges and Universities of Fujian Province (Fujian University of Technology)
关键词:
T形钢管混凝土; 压弯构件; 加载角; 承载力; 有限元分析
Keywords:
T-shaped concrete-filled steel tubular;  compression-bending members;  loading angle;  bearing capacity;  finite element analysis
分类号:
TU398.9
DOI:
10.3969/j.issn.1672-4348.2020.04.005
文献标志码:
A
摘要:
采用有限元软件ABAQUS建立了不同加载角T形带肋和多室钢管混凝土压弯构件的计算模型，数值计算结果与试验结果吻合良好。对影响T形钢管混凝土柱水平荷载P-水平位移Δ关系曲线的参数进行分析，结果表明:加载角为0°时，T形钢管混凝土构件的承载力最低，在67.5°负向加载时，构件的承载力最大，比0°加载角构件大13%左右，加载角为45°~90°间承载力总体上差别不大。随着钢管屈服强度、混凝土抗压强度、钢管长厚比、带肋和多室T形钢管混凝土构件在斜向加载的承载力增加，在传统钢管混凝土基础上，提出了适用于不同加载角带肋和多室T形钢管混凝土压弯构件的承载力设计方法，简化计算公式与有限元结果、试验结果均吻合较好。
Abstract:
The calculation models of stiffened and multi-cell T-shaped CFST compression-bending members at different loading angles were established by using finite element (FE) software ABAQUS. The FE calculated results agreed well with the test results. The parameters affecting the horizontal load P- displacement Δ curves of T-shaped CFST columns were analyzed. The results show that the T-shaped CFST members have the lowest bearing capacity at a loading angle of 0°. The bearing capacity of the members is the largest at 67.5° in a negative direction, which is about 13% higher than that at 0°. In the range of 45° to 90°, the difference in bearing capacity is generally minor. With the increase of steel tube yield strength, concrete compressive strength, steel tube depth-to-thickness ratio, the bearing capacity of stiffened and multi-cell T-shaped CFST members under diagonal loading increases. Based on the traditional CFST, a design method for the bearing capacity of stiffened and multi-cell CFST members considering different loading angles was proposed. The predicted results using the simplified formulas agree well with the FE results and test results.

参考文献/References:

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更新日期/Last Update: 2020-08-25