NONLINEAR FEM ANALYSIS OF SEISMIC BEHAVIOR OF L－SHAPED CONCRETE－FILLED STEEL TUBULAR COLUMN

Zhang Jicheng; Shen Zuyan; Zhou Haijun

doi:10.13204/j.gyjz201007022

Volume 40 Issue 7

Dec. 2014

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Zhang Jicheng, Shen Zuyan, Zhou Haijun. NONLINEAR FEM ANALYSIS OF SEISMIC BEHAVIOR OF L－SHAPED CONCRETE－FILLED STEEL TUBULAR COLUMN[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(7): 85-90. doi: 10.13204/j.gyjz201007022

Citation:

Zhang Jicheng, Shen Zuyan, Zhou Haijun. NONLINEAR FEM ANALYSIS OF SEISMIC BEHAVIOR OF L－SHAPED CONCRETE－FILLED STEEL TUBULAR COLUMN[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(7): 85-90. doi: 10.13204/j.gyjz201007022

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NONLINEAR FEM ANALYSIS OF SEISMIC BEHAVIOR OF L－SHAPED CONCRETE－FILLED STEEL TUBULAR COLUMN

doi: 10.13204/j.gyjz201007022

1.
1. School of Urban Construction,Yangtze University,Jingzhou 434023,China;
2.
2. Department of Building Engineering,Tongji University,Shanghai 200092,China

Received Date: 2009-06-30
Publish Date: 2010-07-20

Abstract

Abstract

To study the seismic behavior of L-shaped concrete-filled steel tubular column, based on experimental study and stress strain relationship of the core concrete of L-shaped concrete-filled steel tubular column subjected to low cyclic loading, nonlinear finite element method analysis of L-shaped concrete-filled steel tubular column is carried out by Opensees software. The lateral load (P) versus lateral displacement () envelope curves and its influencing factors are analyzed. The results show that the calculation results totally correspond with experimental results. The influence of the width-thickness ratio D/t on the envelope curve is similar to that of the length-width ratio D/B, which has little effect on the shape of the envelope curve but will influence the lateral loading capacity. The axial compression ratio is the main factor affecting the envelope curve of the member. In the elastic stage, the influence of the axial compression ratio on the stiffness of the member is small while it is significant in elastic-plastic stage. As the increase of the axial compression ratio, the stiffness of the member and the horizontal loading capacity will decrease.Meanwhile, the curve becomes descendent and the descent amplitude will increase as the increase of the axial compression ratio, which indicates that the ductility of the member becomes worse.
- concrete-filled steel tubular column,
- seismic behavior,
- finite element method ( FEM),
- influencing factors

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References(15)

References

韩林海. 钢管混凝土结构[M]. 北京:科学出版社，2000.

[2] 黎志军，蔡健，谭哲东，等. 带约束拉杆异形钢管混凝土柱力学性能的试验研究[J]. 工程力学，2001，16(A02) :124-129.

[3] 陈之毅. 矩形钢管混凝土结构施工工艺及异形柱承载力的研究[D]. 上海:同济大学，2003.

[4] 王丹. T 形、L 形钢管混凝土柱抗震性能研究[D]. 上海:同济大学，2005.

[5] 周海军. 反复荷载作用下L 形钢管混凝土柱力学性能研究[D]. 上海:同济大学，2005.

[6] Gomes A，Appleton J. Nonlinear Cyclic Stress-Strain Relationship of Reinforcing Bars Including Buckling [J]. Engineering Structures，1997，19(10) : 822-826.

[7] Dhakal R J，Maekawa K. Path-Dependent Cyclic Stress-Strain Relationship of Reinforcing Bar Including Buckling [J].Engineering Structures，2002，24(11) : 1383-1396.

[8] 刘威. 钢管混凝土局部受压时的工作机理研究[D]. 福州:福州大学，2005.

[9] 张正国. 方钢管混凝土偏压短柱基本性能研究[J]. 建筑结构学报，1989(6).

[10] Zhang Zhengguo，Huo Da. The Research on the Basic Behaviour of Concrete Under the Non-Uniform Lateral Restraint [C]∥International Symposium on Fundamental Theory of Reinforced and Prestressed Concrete. Nanning:1986.

[11] 李学平. 矩形钢管混凝上柱的力学性能及其节点的应用技术研究[D]. 上海:同济大学，2004.

[12] 李学平，吕西林，郭少春. 反复荷载下矩形钢管混凝土柱的抗震性能Ⅱ:分析研究[J]. 地震工程与工程振动，2005(5).

[13] Scott A，Park R，Priestley M J M. Stress-Strain Behavior of Concrete Confined by Overlapping Hoops at Low and High Strain Rates[J]. ACI Structural Journal，1982，79 (1) :13-27.

[14] Silvia Mazzom，Frank Mckenna，Michael H Scott，et al. Opensees Users Manual PEER Berkeley [R]. University of California，2004.

[15] 沈聚敏，王传志，江见鲸. 钢筋混凝土有限元与板壳极限分析[M]. 北京:清华大学出版社，1993.

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