带端板圆锥形中空夹层钢管混凝土短柱轴向局压力学性能研究

任庆新; 吕艳波; 贾连光; 默亚卿

doi:10.13204/j.gyjz201304031

带端板圆锥形中空夹层钢管混凝土短柱轴向局压力学性能研究

doi: 10.13204/j.gyjz201304031

1.
沈阳建筑大学土木工程学院,沈阳 110168

基金项目:

辽宁省博士启动基金资助项目(20091064);建设部科技计划资助项目(2011-K2-16);国家自然科学基金资助项目(51208135A)

详细信息

作者简介:
第一作者：任庆新, 男, 1978年出生, 博士, 副教授?电子信箱：renqingxin@sjzu.edu.cn

中图分类号: TU398.9
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- 文章访问数: 107
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- 被引次数: 0
出版历程
- 收稿日期: 2012-11-15
- 刊出日期: 2013-04-20

MECHANICAL BEHAVIOR OF CONICAL CONCRETE-FILLED DOUBLE-SKIN STEEL TUBULAR STUB COLUMNS WITH ENDPLATE UNDER AXIAL PARTIAL COMPRESSION

1.
School of Civil Engineering,Shenyang Jianzhu University,Shenyang 110168,China?

摘要

摘要: 利用有限元分析软件ABAQUS对带端板圆锥形中空夹层钢管混凝土短柱局压力学性能进行有限元分析和相应的试验研究，所得的荷载-位移全过程曲线及短柱破坏形态吻合较好。在此基础上对其受力全过程中上端板、内外钢管及混凝土应力分布情况进行了分析，同时给出了内外钢管与夹层混凝土之间的相互作用，并对锥度、材料强度、空心率、局压面积比、端板刚度等参数对局压时短柱极限承载力及荷载-位移曲线的影响进行了比较。
- 圆锥形 /
- 中空夹层钢管混凝土 /
- 有限元模型 /
- 轴向局压 /
- 端板刚度
Abstract: A finite element analysis(FEA) model for conical concrete-filled double-skin steel tubular stub columns with endplate under axial partial compression was developed and the corresponding tests were conducted.The predicted load versus deformation relationship curves and failure modes were in good agreement with the measured results.The FEA model was then used to investigate the mechanisms of such composite columns further.The stress distribution of each component and the interactions between the concrete and the double-skin steel tubes were analyzed.And then, the main parameters influencing on the load-deformation relationship curves such as taper, strength of the materials, hollow ratio, axial partial compression ratio and rigidity of endplate were investigated.
- conical /
- concrete-filled double-skin steel tube /
- finite element model /
- axial partial compression /
- rigidity?of endplate ?

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参考文献(7)

[2] 刘威,韩林海.钢管混凝土受轴向局压荷载时的工作机理研究[J].土木工程学报,2006,39(6):19-27.

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[4] Yang Youfu, Han Linhai. Experiments on Rectangular ConcreteFilled Steel Tubes Loaded Axially on a Partially Stressed CrossSectional Area[J]. Journal of Constructional Steel Research,2009,65(8/9):1617-1630.

[5] Yang Youfu, Han Linhai. Behaviour of Concrete Filled Steel Tubular (CFST ) Stub Columns Under Eccentric Partial Compression[J]. Thin-Walled Structures,2011,49(2):379-395.

[6] 黄宏,陶忠,韩林海.圆中空夹层钢管混凝土柱轴压工作机理研究[J].工业建筑,2006,36(11):11-14.

[7] 任庆新,郭俊峰,贾连光,等.圆钢管混凝土短斜柱力学性能初步分析[J].工业建筑,2011,41(8):110-114.

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