Preventive maintenance for an old steel railway bridge in Japan: Experimental and numerical study

T. Yoda, Weiwei Lin, N. Taniguchi, H. Kasano

    研究成果

    抄録

    Maintenance of existing steel structures is of great importance in Japan due to the rapid increasing number of aged structures. A strengthening method for old steel railway bridges by integrating the new structural members has been adopted in engineering practice in this context. In this paper, rubber-latex mortar, GFRP plates and rapid hardening concrete were integrated with an old steel railway bridge to increase its rigidity and reduce the stress levels of the old steel bridge. A railway bridge which has been used for around 100 years was strengthened and tested in this study. The static loading tests on the aged steel railway bridge before and after strengthening were performed to confirm the effects of present strengthening method. Based on the experimental observations, a three-dimensional FE model capable of analyzing this kind of strengthened bridges was built. Experimental results of the steel bridge before and after strengthening, including load-deformation response, strain distribution at salient sections along the span, and strain distribution on the GFRP plates as well as the concrete were reported and compared with the numerical results. Both experimental and numerical results indicated that the renovation method could greatly enhance the stiffness and reduce the stress levels of steel members, resulting in service life extension of the old steel railway bridge.

    本文言語English
    ホスト出版物のタイトルBridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014
    出版社Taylor and Francis - Balkema
    ページ1878-1885
    ページ数8
    ISBN(印刷版)9781138001039
    出版ステータスPublished - 2014
    イベント7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014 - Shanghai
    継続期間: 2014 7 72014 7 11

    Other

    Other7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014
    CityShanghai
    Period14/7/714/7/11

    ASJC Scopus subject areas

    • 土木構造工学
    • 安全性、リスク、信頼性、品質管理

    フィンガープリント

    「Preventive maintenance for an old steel railway bridge in Japan: Experimental and numerical study」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル