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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/97127

    Title: 碳纖維索斜張橋阻尼特性對地震反應影響之研究
    Other Titles: A Study on Seismic Response Effects Relating to Damping Characteristics of Cable-Stayed Bridges with Carbon Fiber Composite Cables
    Authors: 苟昌煥;高金盛;江坤霖;馬世瑋;蔡政霖
    Contributors: 淡江大學土木工程學系
    Keywords: 斜張橋;纜索的局部振動;碳纖維索;地震反應;阻尼;cable-stayed bridge;local vibration of cables;carbon-fiber cable;seismic response;damping
    Date: 2007-09
    Issue Date: 2014-03-17 13:32:11 (UTC+8)
    Publisher: 臺北縣淡水鎮 : 中國土木水利工程學會
    Abstract: In large span cable-stayed bridges, self-vibration of cables covered a wide range due to unequal cable lengths in the system; coupled vibration is prone to occur when local vibration of a cable caused by the load of a vehicle, an earthquake, or the wind or rain resonates with the bridge system. Studies reveal that for carbon-fiber cable-stayed bridges, when calculating the strain proportioned damping, damping ratio of part of vibration modes will somehow be over-estimated if not taking the influence of local cable vibration into consideration; in a low proportion, though. Comparing with steel cable-stayed bridges, in a carbon-fiber cable-stayed bridge, whether or not considering the local vibrations has a more substantial effect on the damping distribution. Moreover, when using constant damping to calculate seismic reactions of a large span cable stayed bridge, more significant seismic reactions are often attained; therefore this is a more conservative analysis model. When using Rayleigh Damping theory to simulate damping characteristics, significant deviations in seismic reactions will occur due to different selection of referencing vibration modes.
    Relation: 九十六年電子計算機於土木水利工程應用研討會論文集=Proceedings of 2007 Conference on Computer Application in civil & Hydraulic Engineering,頁477-482
    Appears in Collections:[Graduate Institute & Department of Civil Engineering] Proceeding

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