| Vibration of a suspension bridge installed with a water pipeline and subjected to moving trains | |
|---|---|
| 學年 | 96 |
| 學期 | 2 |
| 出版（發表）日期 | 2008-03-01 |
| 作品名稱 | Vibration of a suspension bridge installed with a water pipeline and subjected to moving trains |
| 作品名稱（其他語言） | |
| 著者 | 姚忠達; Yau, J.D.; Yang, Y.B. |
| 單位 | 淡江大學建築學系 |
| 出版者 | Oxford: Pergamon |
| 著錄名稱、卷期、頁數 | Engineering Structures 30(3), pp.632-642 |
| 摘要 | This Paper presents a first study on the vibration of a suspension bridge installed with a water pipeline and subjected to moving trains. The suspension bridge is modeled as a single-span beam suspended by the hangers and hinged at the two ends. The train is simulated as a sequence of equidistant moving loads with identical weights. The liquid flowing through the pipeline is simulated as a strip of continuous mass moving at constant speeds. The governing equation is transformed into the generalized coordinates by Galerkin's method, and solved by a rigorous incremental-iterative procedure that takes into account all the nonlinear effects. The results indicate that the critical position for the maximum acceleration of the suspended beam to occur under the moving loads depends upon the modal shape that has been excited, which can be antisymmetric or symmetric. The inertial effect of the flowing mass is beneficial for mitigating the vehicle-induced acceleration of the suspended beam, if the flowing speed is kept below the first resonant speed of the moving loads. (C) 2007 Elsevier Ltd. All rights reserved. |
| 關鍵字 | Flowing mass; Moving loads; Pipeline; Resonance; Suspension bridge; Vibration |
| 語言 | en |
| ISSN | 0141-0296 |
| 期刊性質 | 國外 |
| 收錄於 | SCI EI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | |
| 國別 | GBR |
| 公開徵稿 | |
| 出版型式 | |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/59345 ) |
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