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|Title: ||TMD 應用於橋梁受車輛與地震載重之減振研究|
|Issue Date: ||2014-08-11 18:11:28 (UTC+8)|
|Abstract: ||本研究主要探討橋梁受車輛與地震載重作用所造成橋面板的振動反應，並期望尋找出適當的被動式調諧質量阻尼裝置(Tuned Mass Damper)設計參數以達到橋梁減振的目標。|
;This study discussed the dynamic response of bridges, which subjected to moving loads and earthquakes, and expect to mitigate the response of bridges by installing passive tuned mass damper (TMD). The purpose of this research is aimed to find the appropriate parameters for TMD to achieve the best performance of mitigating the dynamic response of bridges.
Vector Form Intrinsic Finite Element Method (VFIFE) was used to predict the bridges subjected to moving loads, which was simulated by equivalent nodal force. The daynamic behavior of simple support beam and continuous beam subjected to moving loads were discussed in this study. Besides, dynamic responses with considering different parameters and configurations of TMD were also been investigated. A three-span-continuous bridge with TMD in axial direction is used to reducing the displacement of bridge which subjected to earthquake. The effects of displacement control with the relation between non-linear structures and design period of TMD had been discussed. The comparison between viscous damper and TMD were shown at last.
The numerical results showed that the TMD can successfully reduced the dynamic response of bridges under moving loads or earthquakes while the structure is either in linear or non-linear behavior.
|Appears in Collections:||[土木工程研究所] 博碩士論文|
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