STIFFNESS CALCULATION OF ARBITRARY REINFORCED CONCRETE CROSS SECTIONS BASED ON ISOPARAMETRIC ELEMENT THEORY

Li Hao; Diao Bo

doi:10.13204/j.gyjz200711011

Volume 37 Issue 11

Dec. 2014

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Li Hao, Diao Bo. STIFFNESS CALCULATION OF ARBITRARY REINFORCED CONCRETE CROSS SECTIONS BASED ON ISOPARAMETRIC ELEMENT THEORY[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(11): 38-41. doi: 10.13204/j.gyjz200711011

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Li Hao, Diao Bo. STIFFNESS CALCULATION OF ARBITRARY REINFORCED CONCRETE CROSS SECTIONS BASED ON ISOPARAMETRIC ELEMENT THEORY[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(11): 38-41. doi: 10.13204/j.gyjz200711011

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STIFFNESS CALCULATION OF ARBITRARY REINFORCED CONCRETE CROSS SECTIONS BASED ON ISOPARAMETRIC ELEMENT THEORY

doi: 10.13204/j.gyjz200711011

Li Hao,
Diao Bo

1.
Dept.of Civil Engineering,Beijing University of Aeronautics and Astronautics Beijing 100083

Received Date: 2006-10-10
Publish Date: 2007-11-20

Abstract

Abstract

Through coordinate transformation corresponding to the isoparametric element theory, calculation of an abnormal element in Cartesian coordinate system is converted to a regular element in natural coordinate system.Applying this finite element technique to nonlinear ful-l range analysis theory of arbitrary reinforced concrete cross-sections, useful expressions of cross-section s strain field and stiffness matr ix in natural coordinate system are derived.In square element, procedure of carrying out Gauss integral to obtain every component of the stiffness matrix is proposed.This method makes numerical analysis methods of various shapes uniformed with one model.A comparison between the numerical analysis by arc-length method and the test results shows good agreements in ultimate loads
- reinforced concrete,
- arbitrary cross-section,
- isoparametric element,
- Gauss integral,
- nonline

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References(7)

References

Ye Yinghua, Diao Bo.Nonl inear Analysis of Concret e St ructures.Harbin: Publ ishing House of Harbin Inst itute of Technology, 1996:23-36

叶英华, 焦俊婷.双向偏压钢筋混凝土异形构件截面分析的简化方法.建筑结构学报, 2004, 25( 6): 83-87

王勖成.有限单元法基本原理和数值方法.第二版.北京: 清华大学出版社, 1996: 130-141

朱伯芳.有限单元法与应用.第二版.北京: 中国水利水电出版社, 1998: 124-130

Crisfield M A.A Review of Solution Procedures and Path-FollowingTechniques in Relation to the Nonl inear Finit e Element Analysis ofStructures.New York: Nonlinear comput ational Mechanics, 1990:47-68

comite Euro-International du Beton.CEB-FIP Model Code ( DesignCode).London: Thomas Telford Ltd., 1998: 58-78

王丹, 黄承逵, 刘明, 等.异形柱双偏压构件正截面承载力试验及设计方法研究.建筑结构学报, 2001, 22( 5): 37-42

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