方中空夹层钢管混凝土纯弯力学性能研究

陶忠; 韩林海; 郑永乾; 黄宏

doi:10.13204/j.gyjz200401002

方中空夹层钢管混凝土纯弯力学性能研究

doi: 10.13204/j.gyjz200401002

1.
福州大学土木建筑工程学院福州 350002

基金项目:

福建省科技计划重大项目(2002H007)资助

详细信息

作者简介:
陶忠男 1973年1月出生博士副研究员

中图分类号: TU37
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- 文章访问数: 92
- HTML全文浏览量: 4
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- 被引次数: 0
出版历程
- 收稿日期: 2003-09-10
- 刊出日期: 2004-01-20

FLEXURAL BEHAVIORS OF CONCRETE-FILLED DOUBLE-SKIN (CHS INNER AND SHS OUTER)STEEL TUBES

1.
College of Civil Engineering and Architecture,Fuzhou University Fuzhou 350002

摘要

摘要: 以空心率为变化参数，进行了5个纯弯构件的试验研究，考察了方中空夹层钢管混凝土在纯弯状态下的力学性能。然后在确定钢和混凝土应力-应变关系模型的基础上，采用数值方法对方中空夹层钢管混凝土纯弯构件进行理论分析，分析结果和试验结果吻合较好。最后提供了构件抗弯承载力和抗弯刚度的简化计算公式，可供有关工程实践参考。
- 钢管混凝土 /
- 中空截面 /
- 纯弯 /
- 抗弯性能 /
- 承载力
Abstract: A total of five specimens were tested under pure bending to investigate the behavior of concrete-filled double-skin steel tubular (CFDST)beams.The specimens were fabricated with square hollow section (SHS) as outer skin and circular hollow section(CHS)as inner skin.The parameter varied in the tests was hollow section ratio.Utilizing the stress-strain relations of steel and concrete presented in the literature for concrete-filled square steel tubes, a numerical method is applied to the analysis of load-deformation curves of the double-skin composite members subjected to pure bending.The calculated results agree well with those of the tests.A simplified model is developed for calculating the bearing capacity and rigidity of the CFDST beams, which may be a reference for engineering practice.
- concrete-filled steel tubes /
- hollow sections /
- pure bending /
- flexural behavior /
- bearing capacity

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参考文献(9)

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[5] Xiao Y, Mahin S A.Double-Skin Composite Tubular Columns Subjected Cyclic Horizontal Force and Constant Axial Force.In:Proceedings of 6th ASCCS Conference.Los Angeles:2000.22～24

[6] 陶忠, 韩林海, 黄宏.方中空夹层钢管混凝土偏心受压柱力学性能的研究.土木工程学报, 2003, 36(2):33～40

[7] 韩林海.钢管混凝土结构.北京:科学出版社, 2000

[8] Eurocode 4.Design of Composite Steel and Concrete Structures.London:British Standard Institution, 1994

[9] ACI Committee 318.Building Code Requirements for Reinforced Concrete(ACI 318M-99)and Commentary (ACI 318RM-99).Detroit:American Concrete Institute, 1999

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