Study on Influence of the Truss Bridge’s Nature Frequency by Added Masses

Xiang Lin Jiang; Dong Bing Zhang; Guo Liang Zen

doi:10.4028/www.scientific.net/AMM.178-181.2140

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Test Research on Aerodynamic Interference Effect on Aerostatic Coefficients of Main Beam in Parallel Bridge
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Study on Influence of the Truss Bridge’s Nature Frequency by Added Masses
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Method of High-Precision Calculation on the Linear Parameters for the Stay-Cable of the Cable-Stayed Bridge
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The New Analytical Theory of Distortion of Thick-Walled Concrete Box Girder Bridge
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 178-181Study on Influence of the Truss Bridge’s Nature...

Study on Influence of the Truss Bridge’s Nature Frequency by Added Masses

Abstract:

Due to the role of the vehicle, the large-span bridge’s frequency which is according to the bridge monitoring data is actually the vibration frequency of the vehicle-bridge coupled vibration system, but not the bridge’s natural frequency. This paper gets formulation of the added mass and the beam’s natural frequency according to the added mass of the beam’s vibration equation; and the formulation is tested by experiments and numerical simulation of a large-span steel truss bridge model. Result shows that added masses which have the fixed location are linearly proportional to changing values of the bridge’s nature frequency.

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Periodical:

Applied Mechanics and Materials (Volumes 178-181)

Pages:

2140-2143

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.178-181.2140

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Online since:

May 2012

Authors:

Xiang Lin Jiang, Dong Bing Zhang, Guo Liang Zen

Keywords:

Added Masses, Frequency, Truss Bridge

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