Dynamic Characteristics of a Long-Span Cable-Stayed Bridge

Liu Hui

doi:10.4028/www.scientific.net/KEM.480-481.1496

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 480-481Dynamic Characteristics of a Long-Span...

Dynamic Characteristics of a Long-Span Cable-Stayed Bridge

Abstract:

In order to study the dynamic characteristics of a super-long-span cable-stayed bridge which is semi-floating system, the spatial finite element model of this cable-stayed bridge was established in ANSYS based on the finite element theory.Modal solution was conducted using subspace iteration method, and natural frequencies and vibration modes were obtained.The dynamic characteristics of this super-long-span cable-stayed bridge were then analyzed.Results showed that the super-long-span cable-stayed bridge of semi-floating system has long basic cycle, low natural frequencies, dense modes and intercoupling vibration modes.

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Periodical:

Key Engineering Materials (Volumes 480-481)

Pages:

1496-1501

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.480-481.1496

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Online since:

June 2011

Authors:

Liu Hui

Keywords:

Cable-Stayed Bridge, Dynamic Characteristic, Finite Element Model (FEM)

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References

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