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    Title: 無因次應力預估模式在機場剛性鋪面厚度設計之應用
    Other Titles: Application of Dimensional Analysis for Rigid Airfield Pavements Thickness Design
    Authors: 李英豪;顏少棠;鄭品恭
    Contributors: 淡江大學土木工程學系
    Keywords: 剛性鋪面;厚度設計;機場;板理論;Rigid Pavement;Thickness Design;Airport;Plate Theory
    Date: 2000-02
    Issue Date: 2014-01-21 09:14:42 (UTC+8)
    Publisher: 臺中市 : 中國土木水利工程學會資訊委員會
    Abstract: 本研究主旨在建立一套可利用版理論的力學原理來分析波音B-777型客機的新機場剛性鋪面厚度設計程式。研究中首先以無因次應力預估模式,配合 Westergaard之邊緣應力理論解,重新計算FAA設計法中各機型的臨界邊緣應力,並與舊法所計算的臨界邊緣應力相互驗證。接著,本研究對FAA、LEDFAA設計法作詳盡且深入的探討。研究中探討FAA設計法P/C的原始觀念與疲勞破壞模式,並以無因次應力預估模式修正FAA之通過涵蓋次數的定義。研究中建立當量應力因子(f/sub 3/)與等值疲勞破壞(CDF)的觀念,進而修正較恰當的疲勞破壞曲線。研究最後將各種疲勞破壞曲線相互比較,結果顯示各種疲勞破壞模式相當相近。此外,本研究以FAA機場剛性鋪面厚度設計法為藍本整合研究成果,進而研擬出新的機場剛性鋪面厚度設計程序,並參考FAA所發展的LEDFAA鋪面厚度設計程式,研發一套擁有良好使用介面之機場剛性鋪面厚度設計程式TKUAPAV。
    The main objective of this study is to develop a new thickness design program for rigid airfield pavements in attempts to accommodate the new-coming Boeing 777 airplanes based on the plate theory approach. The differences of the conventional FAA design method and the newly developed LEDFAA design methodology are investigated. The original concept of pass-to-coverage ratio is reevaluated. The prediction models developed by Lee, et al. (1997) are utilized for the estimation of critical edge stresses. The problems and difficulties of the conventional method especially in the conversions of different aircraft types are identified. The concept of cumulative damage factor is used to account for the combined damages of different aircraft types and departures. Structural deterioration relationships are compared and tentative modification alternatives are investigated. Consequently, an equivalent stress factor is introduced and an alternative structural deterioration model is proposed. The proposed approach has been implemented in a user-friendly computer program (TKUAPAV) for practical trial applications.
    Relation: 八十八年電子計算機於土木水利工程應用研討會論文集(二)=Proceedings of the Conference on Computer Applications in Civil & Hydraulic Engineering,頁927-936
    Appears in Collections:[土木工程學系暨研究所] 會議論文

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