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The Analysis of Dynamic Characteristics of Long-span Half-through CFST Arch Bridges

FU Chun-hu

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Abstract

The paper based on a long-span half-through CFST arch bridge for example,the three-dimensional space finite element model has been established by commercial software finite element program MIDAS for calculating the natural vibration frequency.The top 10 of vibration mode is analysed.The effect of the difference values of the style and number of cross supports collocation and the arch rib section size on the dynamic characteristics of the long-span half-through CFST arch bridge is discussed.The calculating results can offer the related technical parameters and basic data for the design certification,construction,health detection and maintenance in working conditions.

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What this paper is about

The paper based on a long-span half-through CFST arch bridge for example,the three-dimensional space finite element model has been established by commercial software finite element program MIDAS for calculating the natural vibration frequency.The top 10 of vibration mode is analysed.The effect of the difference values of the style and number of cross supports collocation and the arch rib section size on the dynamic characteristics of the long-span half-through CFST arch bridge is discussed.The calculating results can offer the related technical parameters and basic data for the design certification,construction,health detection and maintenance in working conditions.

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Available abstract

The paper based on a long-span half-through CFST arch bridge for example,the three-dimensional space finite element model has been established by commercial software finite element program MIDAS for calculating the natural vibration frequency.The top 10 of vibration mode is analysed.The effect of the difference values of the style and number of cross supports collocation and the arch rib section size on the dynamic characteristics of the long-span half-through CFST arch bridge is discussed.The calculating results can offer the related technical parameters and basic data for the design certification,construction,health detection and maintenance in working conditions.

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

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