- 學位論文
鐵路橋梁即時警示通報監測靜動態特性探討
Warning limits of static and dynamic behavior study for the Real Time monitoring system on the Rail Bridge
摘要
台灣河川多屬坡陡流急，在豪雨或颱風挾帶之洪流衝擊下，常造成鐵、公路橋梁橋墩基礎遭受沖刷而產生傾斜、淘空造成橋梁結構受損或行車的安全的影響。橋梁以用途區分為公路橋梁與鐵路橋梁，本研究將以台鐵大甲溪橋為背景，建置鐵路橋梁即時警示通報檢、監測系統並提出其創新及優勢。 本研究將採用表徵式監測方法，其中橋墩之傾度變化、橫向振幅能反應落橋前之徵兆或變異徵兆，以研究出適用於鐵路軌道的靜、動態管理值；並針對落橋發生前，橋梁自身與軌道互制作用下所造成的行車安全問題予以探討。 鐵路橋梁即時警示通報系統提供即時 (Real Time)的警示通報；雙向控制的管理值提供有效、簡單的管理機制。形成有效避災、防災、減災的成效。
並列摘要
Most rivers and creeks in Taiwan are rapids; with torrents of rain brought by Typhoon and cloudburst, the rapids strike and wear the base of railway, highway and bridge, resulting in steep and empty foundations, the damage of bridge structure, and the effect of driving safety. Bridges were divided by purpose into two categories, highway bridge and track bridge. This research takes Dajiaxi railroad bridge as background to establish the real time automatic monitoring and detect System and address its innovation and advantage. This study applies representative monitoring method, which can show signs or variations before bridge collapse or according to the variety of inclination of bridge pier and transverse amplitude of bridge pier, Study for the railway track static and dynamic management of value. And against before the bridge collapse, the bridge itself and the interaction with the track caused by the traffic safety issues to be discussed. The Real Time Automatic Monitoring System provides Real Time alarms; two-way management value supplies effective and simple management mechanisms. To make use of above methods can effectively achieve the goal of avoiding, preventing and minimizing hazards.