Abstract
The number of steel railway bridges in Japan needing repair, reinforcement or replacement is expected to grow, as most of the country's railway bridges have 50 or more years of service. In order to both extend the life and strengthen the earthquake resistance of deteriorated steel-girder and abutment-type bridges without replacing steel girders, the Railway Technical Research Institute proposed a method that integrates deteriorated steel bridges with nail-reinforced soil. Specifically, the method calls for 1) abutments and backfills with reinforced concrete that are rigidly connected with nail-reinforced soil, and 2) connecting steel girders and abutments with reinforced concrete. Bridges with this proposed structure are called Integral Bridge with Nail-Reinforced Soils (NRS-Integral Bridge). Employing this method can improve the function of steel girders, abutments and backfills in both normal service periods and during earthquakes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
