Vibration of a cable-stayed bridge under a high-speed train and seismic load

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The goal of this study is to investigate the dynamic response of a long-span cable-stayed bridge subject to a high-speed train and seismic load. The bridge deck and towers are modelled using finite elements while the cables are modelled using parabolic cable elements. The train is modelled as rigid bodies linked by the suspension systems). The stochastic track irregularities generated from their empirical power spectnuiis are considered. Seismic excitations are applied 011 bridge nodes and train parts in vertical direction. The interaction equation of motion for train-bridge system is assembled through the contact mechanism and solved by a monolithic time integration scheme to obtain the dynamic response. The vibrations of the train-bridge system are significantly increased under the seismic load. The bridge response is controlled by the earthquake because the natural frequencies of the bridge are close to the dominant frequencies of seismic excitations.

Original languageEnglish
Title of host publicationIABSE Conference, Guangzhou 2016
Subtitle of host publicationBridges and Structures Sustainability - Seeking Intelligent Solutions - Report
PublisherInternational Association for Bridge and Structural Engineering (IABSE)
Pages121-126
Number of pages6
ISBN (Electronic)9783857481420
StatePublished - 2016 Jan 1
EventIABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions - Guangzhou, China
Duration: 2016 May 82016 May 11

Publication series

NameIABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions - Report

Other

OtherIABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions
CountryChina
CityGuangzhou
Period16/05/816/05/11

Keywords

  • Cable-stayed bridge
  • High-speed train
  • Parabolic cable
  • Seismic load
  • Track irregularity

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  • Cite this

    Choi, D. H., & Mu, D. (2016). Vibration of a cable-stayed bridge under a high-speed train and seismic load. In IABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions - Report (pp. 121-126). (IABSE Conference, Guangzhou 2016: Bridges and Structures Sustainability - Seeking Intelligent Solutions - Report). International Association for Bridge and Structural Engineering (IABSE).