A long-life maintenance strategy for existing steel railway structures in Japan

Weiwei Lin*, Nozomu Taniguchi, Teruhiko Yoda

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu


Since Japan's first rail line between Shinbashi and Yokohama opened on 14 October 1872, Japanese National Railways (JNR) has been expanding the railway network using many short span railway bridges. As a result, some of existing railway bridges become old nowadays. With aging, deterioration resulting from fatigue and corrosion becomes a severe problem and seriously affects the serviceability and durability of bridges. Therefore, appropriate preventive maintenance or strengthening should be performed on aged steel railway structures to ensure their reliability and safety in service condition. On this background, a maintenance method for existing steel railway bridges using rubber-latex mortar, Glass Fiber Reinforced Polymer (GFRP) plates, lightweight rapid hardening concrete, and reinforcement, was reported in this study. Both field tests and numerical analyses were performed to confirm the actual effectiveness of this strengthening method. According to the results obtained from this study, the present renovation method can greatly enhance the rigidity and reduce the stress levels of old steel railway bridges, resulting in the extension of their residual service lives.

Otsikko20th Congress of IABSE, New York City 2019
AlaotsikkoThe Evolving Metropolis - Report
KustantajaInternational Association for Bridge and Structural Engineering
ISBN (elektroninen)9783857481659
ISBN (painettu)9781510895379
TilaJulkaistu - 1 tammik. 2019
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaIABSE Congress - New York City, Yhdysvallat
Kesto: 4 syysk. 20196 syysk. 2019
Konferenssinumero: 20


NimiReport / IABSE Symposium
ISSN (painettu)2221-3783


ConferenceIABSE Congress
KaupunkiNew York City


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