Resonance of a Prestressed Concrete Bridge Under Trains
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Détails bibliographiques
| Auteur(s): |
Chunyu Fu
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Conference: Bridges and Structures Sustainability - Seeking Intelligent Solutions, Guangzhou, China, 8-11 May 2016 | ||||
| Publié dans: | IABSE Conference, Guangzhou, China, 8 – 11 May 2016 | ||||
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| Page(s): | 212-220 | ||||
| Nombre total de pages (du PDF): | 9 | ||||
| Année: | 2016 | ||||
| DOI: | 10.2749/222137816819258474 | ||||
| Abstrait: |
By considering the vertical-horizontal interations, this paper investigates the effect of the prestress on the vibration of the bridge subjected to high-speed trains. Lagrange’s equations are adopted to obtain the finite element equations of motion for the train-bridge coupling system, where the horizontal-vertical interaction is represented by an equivalent stiffness, and the effect of high-order displacements is expressed by an equivalent load. The proposed method is validated by a simply supported bridge, and the results show that due to the effects of horizontal-vertical interactions, the horizontal prestress forces can enlarge the vertical displacements of the bridge at resonance, while the vertical vehicular loads can cause the bridge vibration in horizontal direction. |
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