Comparative Study on the Vertical Dynamic Responses of Simply Supported Beam Subjected to Two Typical Vehicle Models

Chun Sheng Shan; Wei Ye; Heng Li; Xiao Zhen Li

doi:10.4028/www.scientific.net/AMM.178-181.2424

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 178-181Comparative Study on the Vertical Dynamic...

Comparative Study on the Vertical Dynamic Responses of Simply Supported Beam Subjected to Two Typical Vehicle Models

Abstract:

A novel simplified vehicle model i.e. arbitrary moving mass-spring systems model, which can be simplified into moving loads model, is put forward and proved to be capable of analyzing the vertical dynamic responses of bernoulli-euler beam. Based on the matlab platform, a simply supported beam with a span of 40 m serviced in Beijing-Shanghai High-speed Railway is selected as the case study. The similarities and differences of vertical dynamic responses of the bridge based on this two vehicle models are compared. On this basis, the effects of vehicle speed and bridge damping ratio on the bridge’s dynamic magnification factor is studied. The computation results show that this new vehicle model is effective and reliable in its practical application.

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Periodical:

Applied Mechanics and Materials (Volumes 178-181)

Pages:

2424-2428

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.178-181.2424

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Online since:

May 2012

Authors:

Chun Sheng Shan, Wei Ye, Heng Li, Xiao Zhen Li

Keywords:

Arbitrary Moving Loads, Arbitrary Moving Mass-Spring Systems, Dynamic Response, Examples Validation, Numerical Analysis, Simply-Supported Beam

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