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Mathematical Problems in Engineering - Volume 2015 2015, Article ID 409530, 7 pages -

Research ArticleSchool of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China

Received 30 September 2014; Accepted 21 January 2015

Academic Editor: P. Balasubramaniam

Copyright © 2015 Jun Ma et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A fiber beam finite element that could account for the nonlinear constitutive relationship between steel and concrete was applied to investigate the hysteretic behavior of concrete filled steel tube CFT arch ribs of bridges. At first, the effectiveness of this fiber beam element using for nonlinear analysis was verified by comparing the analytical results with the experimental data, and then this composite element was applied to analyze the hysteretic performance of CFT arch ribs. The following hysteretic behavior of CFT arch ribs of bridges was investigated such as the hysteretic behaviors of moment-curvature of arch ribs in vertical direction of bridge and the hysteretic relationship between load and displacement of arch ribs in longitudinal and transverse direction of bridge. Finally, some parameters affecting the hysteretic behaviors of CFT arch ribs were presented by evaluating the capacity of ductility of CFT arch ribs.





Autor: Jun Ma, Yang Liu, Qingfei Gao, and Kang Hou

Fuente: https://www.hindawi.com/



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