鉄道の既設盛土・橋梁境界部の一体的な補強技術(<特集>土構造物の補強)

概要

論文の詳細を見る
Since Japan started railway operations about 140 years ago, a number of steel bridges have been constructed for railways across the country, with the majority now reaching 50 years or more in service. Therefore, it is supposed that the number of steel bridges requiring repair, reinforcement or replacement will continue to increase in the future. To extend the life and strengthen the earthquake resistance of deteriorated steal-beam- and abutment-type bridges without replacing steel beams, RTRI proposes a method to integrate the following structures: (1) Abutments and backfills with reinforced concrete (RC) walls that are rigid with nail-reinforced soil, and (2) Connecting steel beams and abutments with reinforced concrete. These measures improve the functions of steel beams, abutments and backfills in normal service periods and during earthquakes.
2013-01-01