| 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 | en_US |
| ISSN | 0219-4554 |
| 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 | 是 |
| 國別 | SGP |
| 公開徵稿 | |
| 出版型式 | 電子版 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/83265 ) |
GoogleAnalytics