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A Study of the Dynamic Behavior of the Continuous Plate-truss Composite-beam of the Yangtze River Bridge at Wuhu

SI Rui-jun

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Abstract

In this paper, the vibration model analysis is briefly introduced and the importance of finite element model(FEM) in the whole monitoring of structures is stressed. In the light of the structural features of bridges,a 3-D FEM of the bridge is established. The dynamic behavior of the bridge is analyzed with finite element program ANSYS, and the free vibration frequencies and modes of the bridge are thus obtained. Compared with the site-measured results, the finite element model described in the paper is proved to be quite reliable.

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What this paper is about

In this paper, the vibration model analysis is briefly introduced and the importance of finite element model(FEM) in the whole monitoring of structures is stressed. In the light of the structural features of bridges,a 3-D FEM of the bridge is established. The dynamic behavior of the bridge is analyzed with finite element program ANSYS, and the free vibration frequencies and modes of the bridge are thus obtained. Compared with the site-measured results, the finite element model described in the paper is proved to be quite reliable.

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Available abstract

In this paper, the vibration model analysis is briefly introduced and the importance of finite element model(FEM) in the whole monitoring of structures is stressed. In the light of the structural features of bridges,a 3-D FEM of the bridge is established. The dynamic behavior of the bridge is analyzed with finite element program ANSYS, and the free vibration frequencies and modes of the bridge are thus obtained. Compared with the site-measured results, the finite element model described in the paper is proved to be quite reliable.

Key concepts: Bridge (graph theory), Finite element method, Structural engineering, Truss, Vibration, Yangtze river, Engineering, Beam (structure)

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