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Analysis of Dynamic Characteristics for Cable-Stayed Arch Bridge

Kang Houjun

Abstract

The cable-stayed arch bridge is a new type of composite bridge.In this paper,the 3-D finite element models(FEM) are erected based on the Fourth Bridge over Xiangjiang River in Xiangtan City for analysising dynamic characteristics of cable-stayed bridges including self-vibration frequency and mode of vibration.The effects of major structure parameters on dynamic characteristics are also discussed.Some suggestions about design of the structure are presented.

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Key concepts: Structural engineering, Bridge (graph theory), Finite element method, Vibration, Arch bridge, Engineering, Arch, Acoustics