教師資料查詢 | 類別: 期刊論文 | 教師: 姚忠達 Jong-dar Yau (瀏覽個人網頁)

標題:Interaction response of train loads moving over a two-span continuous beam
學年101
學期2
出版(發表)日期2013/02/01
作品名稱Interaction response of train loads moving over a two-span continuous beam
作品名稱(其他語言)
著者Wang, Y. J.; Wei, Q. C.; Yau, Jong-dar
單位淡江大學建築學系
出版者Singapore: World Scientific Publishing Co. Pte. Ltd.
著錄名稱、卷期、頁數International Journal of Structural Stability & Dynamics 13(1), 1350002(18pages)
摘要The objective of this study is to investigate the resonance and sub-resonance acceleration response of a two-span continuous railway bridge under the passage of moving train loadings. The continuous bridge is modeled as a Bernoulli-Euler beam with uniform span length and the moving train is simulated as a series of equidistant two degrees-of-freedom (2-DOF) mass-spring-damper units. The modal superposition method is adopted to compute the interaction dynamics of the train-bridge system. The numerical analyses indicate that (1) the train-induced resonance of the two-span continuous beam may result in significant amplification of the dynamic response of the train/bridge system; (2) for a two-span continuous beam, the first two resonant speeds may fall in the range of operating speeds of high-speed trains, which can lead to highly amplified vehicle responses; (3) due to the presence of sub-resonant peaks, the maximum acceleration of the two-span continuous beam need not occur at the midpoint of the beam; (4) inclusion of damping of a beam is helpful for reducing the train-induced resonant response on the beam, but the first two resonant peaks of the coupling system remain unchanged.
關鍵字Moving vehicles; two-span continuous beam; resonance; sub-resonance; train
語言英文(美國)
ISSN0219-4554
期刊性質國外
收錄於SCI;EI;THCI Core;
產學合作
通訊作者WANG, Y. J.
審稿制度
國別新加坡
公開徵稿
出版型式電子版;紙本;
相關連結
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