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سازه های مهندسی
جزئیات رویداد
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همایش ، رویداد ، ژورنال
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  • structural adequacy assessment of a disused flat bottom rail wagon as road bridge deck

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 942
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -

    this paper presents half of a full scale experimental testing technique for assessing the structural adequacy of a disused flat bottom rail wagon (fbw) for low volume, heavy axle load road bridge applications. the aim of this ongoing research project is to develop sufficient knowledge required for achieving significant economy and safety of the heavy axle transportation system in regional government council roads. in the absence of such knowledge, the viability of replacing/rehabilitating the ageing bridges could not be economically justified, mainly due to low volume traffic and the costs of alternate solutions using new materials for heavy axle load demands.

    this study describes a comprehensive laboratory testing of half of a single lane, single span bridge deck and an associated three dimensional finite element modeling. the novel idea in the paper is to enforce the transverse continuity conditions along the longitudinal edge of the half of full scale bridge so that the single fbw tested will mimic the behaviour of a double fbw deck for a single lane road bridge under heavy axle design loads. several serviceability and ultimate load tests, conforming to the australian bridge design traffic loads applied at critical locations of the fbw system are reported in the paper. the test results demonstrate that the fbw possesses sufficient structural strength and can service the required design traffic loads. 

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