Vehicle/bridge interactions of a rail suspension bridge considering support movements

doi:10.12989/imm.2009.2.3.263

淡江大學機構典藏 > 工學院 > 建築學系暨研究所 > 期刊論文 > Item 987654321/50715

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題名:	Vehicle/bridge interactions of a rail suspension bridge considering support movements
作者:	姚忠達;Yau, Jong-dar
貢獻者:	淡江大學建築學系
關鍵詞:	high speed train;support settlement;resonance;suspension bridge
日期:	2009-09-01
上傳時間:	2010-08-10 15:23:12 (UTC+8)
出版者:	Techno Press
摘要:	This paper is intended to investigate interaction response of a train running over a suspension bridge undergoing support settlements. The suspension bridge is modeled as a single-span suspended beam with hinged ends and the train as successive moving oscillators with identical properties. To conduct this dynamic problem with non-homogeneous boundary conditions, this study first divides the total response of the suspended beam into two parts: the static and dynamic responses. Then, the coupled equations of motion for the suspended beam carrying multiple moving oscillators are transformed into a set of nonlinearly coupled generalized equations by Galerkin's method, and solved using the Newmark method with an incremental-iterative procedure including the three phases: predictor, corrector, and equilibrium-checking. Numerical investigations demonstrate/bridge coupling system and that the differential movements of bridge supports will significantly affect the dynamic response of the running vehicles but insignificant influence on the bridge response.
關聯:	Interaction and multiscale mechanics: an international journal 2(3), pp.263-276
DOI:	10.12989/imm.2009.2.3.263
顯示於類別:	[建築學系暨研究所] 期刊論文

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