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  • 學位論文

施工階段斜張橋的索力與主梁內力分析

The Analysis of Cable Forces and Deck Internal Forces of Cable-Stayed Bridge during Construction

指導教授 : 鄭金國

摘要


斜張橋梁為一種力學行為十分複雜的高度靜不定橋梁結構,本文第一部分將對斜張橋主梁、主塔、斜拉索與支承之力學特性和設計型式作一系統性之介紹。 斜張橋不僅在全橋完工後的安全性、穩定性非常重要,在橋梁施工階段更必須考慮其工法的可行性。本文第二部分以台北某兩座斜張橋為案例,作施工階段時懸臂工法及懸臂遠端加就地支撐的索力及內力探討。本文使用橋梁專門分析軟體TANGO做施工階段的靜力分析,求斜張橋施工中各階段的斜拉索預拉力、垂直變位及主梁內力(彎矩、軸力、剪力),並進行應力檢核,以確認其滿足設計規範要求。

關鍵字

懸臂工法 索力分析 斜張橋

並列摘要


Cable-stayed bridges usually have more complicated and high-indeterminacy structural behaviors. The first part of this study is to introduce the characteristics of girder, pylon, cable and their related designs. Though the safety and stability of the constructed cable-stayed-bridge is important, more consideration should even be given to its feasibility during construction. The second part of the research studies two bridges in Taipei and adjust the changing of cable forces and bending moments of deck during construction by using cantilever method and cantilever method with far end staging method. The static analysis software “TANGO” is used to analyze cable prestress, vertical displacement, bending moment, axial force, and shear force so that stress can be calibrated to ensure the design fit the requirement of specifications.

參考文獻


8、胡永康,「斜張橋設計與施工階段索力分析」,私立中原大學土木工程研究所碩士學位
9、許清雯,「斜張橋設計與分析」,私立中原大學土木工程研究所,碩士學位論文,2003
10、溫佳敏,「斜張橋的設計與振態分析」,碩士學位論文,私立中原大學土木工程研究
11、溫俊賢,「斜張橋在地震力作用下之動態分析及正交異性鋼床鈑主梁之應力分析」,私
所,2003年7月。

被引用紀錄


鄭存迪(2010)。鋼索懸臂架設橋梁施工階段結構分析之研究〔碩士論文,國立臺北科技大學〕。華藝線上圖書館。https://doi.org/10.6841/NTUT.2010.00626

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