Influence of Hoop Coefficient on Dynamic Response of Railway Bridge Protective Frame under Impact Load

Author:

Ju Ao Tian1,Qu Shu Ying1,Hou Xing Min1,Wang Jin Tian1

Affiliation:

1. Yantai University

Abstract

The paper analyzes that hoop coefficients of the concrete-filled steel tube influence on dynamic response of the railway bridge height limit protective frame under impact load by using ANSYS/LS-DYNA. Change hoop coefficient of the concrete-filled steel tube structure by changing steel tube wall thickness. The result shows that with increase of steel tube wall thickness, the average impact force of protective frame will increase and the displacement and deformation will reduce, and protective frame can resist greater impact load. It will provide the reference for design of railway bridge height limit protective frame.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference9 articles.

1. Railway transportation safety protection ordinance[s], 2005, 4.

2. Lu Hui. New advances in the research on dynamic performance of concrete-filled steel tubes [J]. World Earthquake Engineering, 2007, 23(4): 119-128.

3. He Tao, Yang Jing, Jin Xin. ANSYS 10. 0/LS-DYNA Nonlinear finite element analysis example tutorial guide [M]. Mechanical industry press, 2007, 1.

4. Zhong Shantong. The unified theory of CFST members-- research and application [M]. Tsinghua university press, 2006, 8.

5. Wang Rui, Li Zhu, Ren Gouping, Zhang Shanyuan. Experimental study and numerical simulation of the dynamic response of concrete filled steel tubes under lateral impact load [J]. China Civil Engineering Journal, 2007, 40(10): 34-39.

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