[1]刘飞,李元齐,沈祖炎.新型冷弯薄壁型钢屋架结构承载力分析[J].华侨大学学报(自然科学版),2009,30(6):698-703.[doi:10.11830/ISSN.1000-5013.2009.06.0698]
　LIU Fei,LI Yuan-qi,SHEN Zu-yan.Analysis on Load-Carrying Capacity of New Cold-Formed Thin-Walled Steel Roof Truss[J].Journal of Huaqiao University(Natural Science),2009,30(6):698-703.[doi:10.11830/ISSN.1000-5013.2009.06.0698]
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新型冷弯薄壁型钢屋架结构承载力分析()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第30卷
期数:
2009年第6期
页码:
698-703
栏目:
出版日期:
2009-11-20

文章信息/Info

Title:
Analysis on Load-Carrying Capacity of New Cold-Formed Thin-Walled Steel Roof Truss
文章编号:
1000-5013(2009)06-0698-06
作者:
刘飞; 李元齐; 沈祖炎
同济大学建筑工程系
Author(s):
LIU Fei;  LI Yuan-qi;  SHEN Zu-yan
Department of Building Engineering, Tongji University, Shanghai 200092, China
关键词:
冷弯薄壁型钢;  屋架结构;  极限承载力;  非线性屈曲;  数值模拟;  有限元
Keywords:
cold-formed thin-walled steel;  roof truss structure;  ultimate load-bearing capacity;  non-linear buckling;  numerical simulation;  finite element method
分类号:
TU392.1
DOI:
10.11830/ISSN.1000-5013.2009.06.0698
文献标志码:
A
摘要:
基于已完成的G550冷弯薄壁型钢屋架结构承载力试验,采用通用有限元软件ANSYS,建立考虑材料和几何非线性的分析模型.分析结构的特征值屈曲和非线性屈曲承载能力,通过对比试验数据结果,研究屋架结构的合理分析模式.结果表明,屋架结构的破坏模式为上弦杆的整体弯扭屈曲,与试验观测到的现象一致,极限承载力和试验结果非常接近.研究表明,有限元分析模型设计合理,节点处自由度耦合的手段能模拟自攻螺钉连接的受力情况.
Abstract:
Based on the experiments of G550 cold-formed thin-walled steel roof truss structures,an analysis model considering geometry and material non-linearity is established using general FEM software ANSYS.Both eigenvalue buckling and non-linear stability analysis of this structure are performed,a reasonable analysis model for roof truss structure is studied by comparing with test data.The results showed that the failure mode of roof truss is flexual-torsional buckling of top chord members,which accords with the phenomena observed during test,the ultimate load-bearing capacity is also very close to test data.The study demonstrates that the FEM analysis model is rational,the measure of coupling nodes’ degree of freedom can simulate force state of self-taping screw connections.

参考文献/References:

[1] Joint Technical Committee BD-082. AS/NZS 4600:2005 Cold-formed steel structures [S]. Sydney:[s.n.], 2005.
[2] 湖北省发展计划委员会. GB 50018-2002 冷弯薄壁型钢结构技术规范 [S]. 北京:中国计划出版社, 2002.
[3] 王彦敏, 陈新豪, 王海峰. 澳大利亚钢结构系统的耐久性研究 [A]. 广州:[s.n.], 2005.851-855.
[4] 王新敏. ANSYS工程结构数值分析 [M]. 北京:人民交通出版社, 2007.
[5] 郭鹏. 冷弯型钢骨架墙体抗剪性能试验与理论研究 [D]. 西安:西安建筑科技大学, 2008.

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[1]王进,高轩能,周期源.考虑滑移效应的薄壁型钢-混凝土组合梁抗弯承载能力分析[J].华侨大学学报(自然科学版),2009,30(4):443.[doi:10.11830/ISSN.1000-5013.2009.04.0443]
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备注/Memo

备注/Memo:
国家自然科学基金资助项目(50878168)
更新日期/Last Update: 2014-03-23