纜索參數振動研究 = Study on Cable Parametric...
國立高雄大學土木與環境工程學系碩士班

 

  • 纜索參數振動研究 = Study on Cable Parametric Vibrations
  • 紀錄類型: 書目-語言資料,印刷品 : 單行本
    並列題名: Study on Cable Parametric Vibrations
    作者: 潘弘斌,
    其他團體作者: 國立高雄大學
    出版地: [高雄市]
    出版者: 撰者;
    出版年: 民100
    面頁冊數: 73葉圖,表格 : 30公分;
    標題: 斜張橋
    標題: Cable-Stayed Bridge
    電子資源: http://handle.ncl.edu.tw/11296/ndltd/89857626412990423795
    附註: 參考書目:葉27-30
    摘要註: 斜張橋主要組成構件包括橋塔、主梁與纜索,斜張橋的橋型因加入纜索系統,使得斜張橋主跨度已突破千米大關,也是長跨橋梁設計的首選造型。斜張橋進行氣動力分析時,因纜索的低阻尼及輕質量之特性,常忽略纜索局部振動行為,進而發生纜索疲勞損傷與斷裂破壞的情形。本文主要是從基本的單索參數振動模式解析推導出水平索-橋面版耦合互制非線性振動模式,並求解非線性參數振動問題。由數值模擬的結果可知,纜索受振動橋面的牽引作用,在共振情形下將引發出纜索強烈的非線性耦合共振現象,這將使得纜索產生過大振幅的耦合振動互制效應。 Cable-stayed bridges have become more and more popular in modern society due to their strong functionality and aesthetically appealing solution. In order to increase span, the addition of cable system makes the bridge more flexible and prone to vibrate under environmental and service loading such as wind, rain, traffic, and earthquake. The effects lead to significant new dynamic phenomena. In particular, high amplitude localized oscillations can arise in the stay cable. For cable stayed bridges, the global vibration amplitude of deck can be examined by wind tunnel testing. However, stay cables are very low-damped and flexible due to their length. Hence local vibrations of stay cables may be excited and are of critical importance from the safety point of view. In this paper, an analytic work is adopted to find out and to verify the mechanisms of local vibration of the stay cables subject to bridge deck excitations. A continuum model by using the analytical methods will be find out for the study of cables subjected to anchorage excitation. Finally, the effects of the non-linear planar dynamics on the stay cable are investigated by using Kao Ping Hsi cable-stayed bridge.
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310002135559 博碩士論文區(二樓) 不外借資料 學位論文 TH 008M/0019 541606 3210 2011 一般使用(Normal) 在架 0
310002135567 博碩士論文區(二樓) 不外借資料 學位論文 TH 008M/0019 541606 3210 2011 c.2 一般使用(Normal) 在架 0
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