淡江大學機構典藏:Item 987654321/44778
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/44778


    Title: Effects of Deck's width-to-depth ratios and turbulent flows on the aerodynamic behaviors of long-span bridges
    Authors: Lin, Yuh-yi;Cheng, C. M.;Lan, C. Y.
    Contributors: 淡江大學土木工程學系
    Keywords: width-to-depth ratio;turbulence;buffeting;flutter;section model;long-span bridge
    Date: 2003-07-01
    Issue Date: 2010-03-26 17:03:16 (UTC+8)
    Publisher: Techno Press
    Abstract: This study investigates the effects of a bridge deck's width-to-depth (B/H) ratio and turbulence on buffeting response and flutter critical wind speed of long-span bridges by conducting section model tests. A streamlined box section and a plate girder section, each with four B/H ratios, were tested in smooth and turbulent flows. The results show that for the box girders, the response increases with the B/H ratio, especially in the vertical direction. For the plate girders, the vertical response also increases with the B/H ratio. However, the torsional response decreases as the B/H ratio increases. Increasing the B/H ratio and intensity of turbulence tends to improve the bridge's aerodynamic stability. Experimental results obtained from the section model tests agree reasonably with the calculated results obtained from a numerical analysis.
    Relation: Wind and structures 6(4), pp.263-278
    DOI: 10.12989/was.2003.6.4.263
    Appears in Collections:[Graduate Institute & Department of Civil Engineering] Journal Article

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