河川橋梁下部結構之整體耐洪能力評估

顏宏宇(Hong-Yu Yan)

指導教授 ： 蔡益超

國立臺灣大學/工學院/土木工程學研究所/碩士(2005年)

https://doi.org/10.6342/NTU.2005.00304

摘要

公路對於鄉鎮與都市之間的交通聯繫是非常重要的，複雜的公路交通難免不了要跨越河川。民國八十九年八月高屏大橋落橋事件，使得政府不得不重視橋梁裸露的問題，但是對於重要交通要道的公路橋粱，並不是能隨意拆除改建。為此原因，本文的目的是要分析評估台灣基礎裸露之橋梁其安全性如何。

本文主要目的是探討整體橋梁耐洪能力評估，當側向外力作用於整座橋梁時，對於多跨式橋墩（行車向橋墩），有何現象與行為模式發生？同樣地，新舊橋梁（橫向橋墩）有何現象與行為模式發生？跟單座橋墩單獨分析結果有何差異？關於快速計算分析法部分，必須作進一步分析與公式修正

關鍵字

多跨式橋墩 ； 橫向橋墩 ； 快速計算分析法

並列摘要

The highway is very important for connecting villages and towns. The complex communications of highway is hard to avoid crossing the multitudinous rivers. In august 2000, typhoon BILIS caused the damage of the Kau-pin bridge .This event made the government have no choice but to pay much attention to the problem of the uncovered bridges. The bridges of a main routine are not easy to be dismantled and rebuilt. For this reason, the purpose of this paper is to assess and check the safety of foundation-exposed bridges in Taiwan, and find out the safety coefficients of those bridges.
The main purpose of this article is to analyze the safety of foundation-exposed bridges in Taiwan. When the external forces act on the foundation-exposed bridges, what will happen to the bridge with multiple piers? What about the transverse direction of the bridges? What is difference between the case of the single bridge and all bridges? Among the about cases, the method of fast analysis needs to be analyzed further.

並列關鍵字

the bridge with multiple piers ； the transverse direction of the bridges ； the method of fast analysis

參考文獻

(11) 林高玄『基礎裸露橋梁之耐洪能力評估』，國立台灣大學碩士論文，蔡益超教授指導(2004)

(5) 周憲德、吳沛倫、王新貴、張藝馨『裸露圓柱橋基之局部沖刷分析』中國土木水利工程學會，學刊第十四卷第4期(1994)

(1) ”Bridge Scour”, Bruce W. Meville and Stephen E. Coleman Water Resources Publications,LLC,2000

(2) FHWA(1988) , Hydraulic Engineering Circular No. 18

(3) FHWA(1986) Inspection of Fracture Critical Bridge Menbers