Preventive maintenance on superstructure and pier of aged short-span steel railway structures

Weiwei Lin*, Nozomu Taniguchi, Teruhiko Yoda

*この研究の対応する著者

    研究成果

    抄録

    Deterioration of existing bridges has become a severe problem and seriously affect the serviceability and durability of railway system in many countries. A preventive maintenance strengthening method using rubber-latex mortar, Glass Fiber Reinforced Polymer (GFRP) plates, lightweight rapid hardening concrete, and reinforcement was introduced this study, which can be used to strengthen the both steel bridge superstructures and bridge piers. In order to confirm the real effects of the present strengthening method, field loading test on a short-span railway bridge and laboratory tests on a steel column were performed. The results on both original and strengthened specimens were summarized and compared. For the railway bridge superstructure, theoretical results were also provided to confirm the strengthening effects. For the steel piers, however, numerical models were built to provide the load carrying capacity of the original pier. The load-displacement curve and load-strain response at key sections were measured in the loading tests and reported in this paper. According to the results, the present renovation method could greatly enhance the rigidity of old steel railway bridge superstructures and the load carrying capacity of existing piers, resulting in the extension of the residual service life of short-span railway bridge superstructures and improvement of seismic behavior of steel piers.

    本文言語English
    ホスト出版物のタイトルIABSE Symposium, Nantes 2018
    ホスト出版物のサブタイトルTomorrow's Megastructures
    出版社International Association for Bridge and Structural Engineering (IABSE)
    ページS20-91-S20-98
    ISBN(電子版)9783857481611
    出版ステータスPublished - 2019 1 1
    イベント40th IABSE Symposium in Nantes 2018: Tomorrow's Megastructures - Nantes, France
    継続期間: 2018 9 192018 9 21

    Other

    Other40th IABSE Symposium in Nantes 2018: Tomorrow's Megastructures
    国/地域France
    CityNantes
    Period18/9/1918/9/21

    ASJC Scopus subject areas

    • 土木構造工学
    • 建築および建設

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