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Finite Element Method of Composite Steel-Concrete Beams Considering Interface Slip and Uplift



Jing Wang*, Xiao-Hui Cong, Yun-Long Zhang, Di Yun
Jilin Jianzhu University, School of Transportation Science and Engineering, Changchun, Jilin 130118 China


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Creative Commons License
© 2017 Wang et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Jilin Jianzhu University, School of Transportation Science and Engineering NewCity Street 5088, Changchun, Jilin 130118 China, Tel: +86 13844835235, Fax: 0431-84566171, E-mails: wangjing0062@sina.com, zyl_ql@163.com


Abstract

Introduction:

In order to analyze the displacement and internal force of composite steel-concrete beams under the vertical load, The finite element solution of composite steel-concrete beams under concentrated loads considering the existence of interface slip and vertical uplift based on the basic idea of elastic mechanics was derived in this paper.

Method:

A new kind of stiffness equation of bar system was got and its correctness was demonstrated with experimental value, the problem of composite beams considering the existence of interface slip and vertical uplift was solved, avoiding to produce large amount of calculation with the body element method.

Results and Conclusion:

It can be seamlessly integrated into the current engineering design software, which provides effective help to practical engineering problems.

Keywords: Composite beam, Finite element, Interface slip, Vertical uplift, Element stiffness matrix, Composite steel, Concrete beams.