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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/64916

    Title: 鋼床鈑鋪面結構破壞參數分析
    Authors: 吳孟修;Wu,Meng-slou
    Contributors: 土木工程學系
    Keywords: 鋼床鈑;有限元素;車轍破壞;疲勞破壞
    Date: 2014-07-30
    Issue Date: 2014-10-15 14:33:28 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 隨著現今交通量的大幅提升,鋼床鈑鋪面在交通中扮演一個重要的角
    以有限元素法作為力學基礎,配合有限元素分析軟體 ABAQUS 進行計算,
    方為橫梁支撐時,會產生較大之 E33-C 值。(4)本研究認為上層勁度小、下
    面層之 MPE-T 數值。(5) 增加鋪面層厚度及鋼床鈑厚度能有效降低 MPE-T
    值;而 E33-C 方面則是較不顯著。(6) 當胎壓及軸重增加時,會同時造成鋪
    面之 MPE-T 及 E33-C 數值上升。(7) 改變橫梁間距對於鋪面之 MPE-T 及
    E33-C 數值影響皆不大。
    關鍵字:鋼床鈑鋪面、有限元素法、疲勞破壞、車轍破壞;As the traffic load increases tremendously nowadays, the pavement steel deck has played an important role. Its repetitive loading of the mechanical behavior is different from the general road pavement. Therefore, this research aims to investigate with finite element as its mechanical basis, along with the finite element analytic software “ABAQUS” as the computing device. The research observes the mechanical behavior of the steel deck after loading under different circumstances such as the steel deck’s loading type, loading position, and pavement materials. Last, the paper investigates and observes different failure parameters in order to further understand the failure factors of the steel deck.
    The conclusion of the analysis indicates, (1) the loading of tandem axles with dual tires can be simplified as the single axle with dual tires and analyzed with superposition. (2) The pavement would produce larger MPE-T easily when the lower part of the loading is without rib. (3) The E33-C would increase, as the center of the tire print gets closer to the support, it would produce even larger E33-C if the support of the tire print center were formed with floor beam. (4) The study indicates that the best allocation of steel deck’s stiffness should be small on the upper layer, and large on the bottom. This is not only good for the follow-up repair, but also could lower MPE-T. (5) Increase the thickness of the pavement and steel deck can lower MPE-T effectively. However, the change of E33-C is not so effective. (6) When the axle load and tire pressure increase, MPE-T and E33-C would also increase. (7) The change of distance of the floor beam does not influence MPE-T and E33-C effectively.
    Appears in Collections:[土木工程研究所] 博碩士論文

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