斜張橋設計與施工階段索力分析

Analysis of Cable Force on Construction Stages of Cable-Stayed Bridge

胡永康(Yeong-Kang Hwu)

指導教授 ： 鄭金國

中原大學/工學院/土木工程研究所/碩士(2004年)

https://doi.org/10.6840/cycu200400032

摘要

斜張橋是一種力學行為十分複雜的高度靜不定橋樑建築，本文第一部份是針對斜張橋斜拉索、主梁、主塔與支承的力學行為、設計型式與彼此間的交互影響做整體性的介紹，同時對斜張橋設計流程與分析內容進行彙整，以期能將斜張橋的設計概念及原則做進一步深入淺出的介紹。

本文第二部分則以二重疏洪道斜張橋為例，針對此橋採用就地支撐吊裝工法或支撐先進工法的索力調整為研究對象，本文以有限元素分析程式TANGO做靜力分析；藉由分析所得之內力(撓曲彎矩、剪力、軸力等)、變位與斜拉索索力變化，找出此橋在選用前述兩種施工法時最合理的索力大小。

關鍵字

索力分析 ； 斜張橋

並列摘要

The cable-stayed bridges have two marked characteristics those are complex dynamic behaviors and high indeterminacy. The first part of this thesis is to introduce the important concepts of the design of cable-stayed bridges, which includes the dynamic behaviors, structural styles and the interactions of the components of cable-stayed bridges (such as cable, girder, pylon, etc).

The second part of this thesis is using static analysis and professional design program, TANGO, to analyze the cable force of the Erl-Chorng cable-stayed bridge during the construction stages. Either the staging method or the advancing shoring method may be used. The target of this thesis is to find the reasonable values of cable forces corresponding the above methods through the consequent processes of analysis, which provides the internal forces (bending moment, shear force, axial force, etc), displacement, and the changes of cable forces at each step for engineering judgment and adjustment.

並列關鍵字

Cable-Stayed Bridge ； Analysis of Cable Force

參考文獻

頁，2003年6月。

7.交通部頒布，「公路橋樑耐震設計規範」，第二版，幼獅文化事業股份有限公司，2000

Lockwood Staples, London, 1977.

12.Niles J. Gimsing “ Cable Supported Bridges Concept and Design “, 2nd ed.,

14.Jacques Mathivat, “ The Cantilever Construction of Prestressed Concrete