斜張橋設計與分析

Design and Analysis of Cable-Stayed Bridge

許清雯(Ching-Wen Hsu)

指導教授 ： 何仲明 ； 鄭金國

中原大學/工學院/土木工程研究所/碩士(2003年)

https://doi.org/10.6840/cycu200300552

摘要

本文針對斜張橋作一整體性之介紹，包括斜張橋導覽、斜張橋設計及結構分析等。再以兩個實例：二重疏洪道斜張橋（單塔、雙索面扇型配置、對稱鋼構造）及高屏溪斜張橋（單塔、單索面扇型配置、不對稱複合式構造）為研究之主題，並藉此案例突顯斜張橋的設計流程和力學行為與傳統梁式橋的不同，以及其能令建材達到最佳化利用的關鍵所在。

本文應用有限元素分析軟體TANGO程式進行斜張橋的實例分析研究。探討斜張橋結構（主梁）在不同載重（靜載重、活載重）作用下之力學行為，包括變位情形以及內力（彎矩、剪力、軸力等）之分佈；本文另外研究抽換吊索之分析，以瞭解抽換吊索對整體結構之行為，且考慮P-Δ效應所造成的影響，並根據AISD規範作容許應力之檢核。

關鍵字

抽換吊索分析 ； 斜張橋 ； 最佳化

並列摘要

The target of this research is about the cable-stayed bridges, including the introduction of cable-stayed bridges, the design and structural analysis of cable-stayed bridges. In addition, we take two examples: Erl-Chorng Cable-Stayed Bridge (single tower, double plane fan configuration, symmetrical steel structures) and Kao-Ping Hsi Cable-Stayed Bridge (single tower, single plane fan configuration, asymmetrical compound structures). By studying these cases, we can see the difference between the cable-stayed bridge and the traditional bridges in design flow and behaviors, and can optimize the design and save materials.

In the study, we use the professional design program, TANGO, to analyze the examples of cable-stayed bridges, to do the comparison of structural behaviors of the cable-stayed bridges in different loading conditions and to obtain the deflection and internal forces (moment, shear force, axial force, etc). Cable replacement is another text topic of this research, which is very important for maintenance. The AISC specification is used to check the allowable stress and P-Δ effects.

並列關鍵字

optimize ； cable-stayed bridge ； cable replacement analysis

參考文獻

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