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이준석(Lee Jun. S.),최은수(Choi Eunsoo),이인규(Rhee Inkuy),이주범(Lee Joo. B.) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
Open-Steel-Plate-Girder railway bridges, in general, have plain concrete gravity pier without piles at foundations. Such piers are vulnerable to be overturned against braking forces and ground shakings during an earthquake. Thus, this study suggests a strengthening method using earth anchors to improve the resistance of plain concrete gravity piers to the overturn of themselves. Also, a filed test was performed for the as-built and the strengthened pier and the test results were compared to assess the strengthening effect. The earth anchors increased the ultimated capacity for the pier"s overturn. Finally, a FE analysis was conducted using nonlinear elements for soil to understand the distribution of the soil stresses for the as-built and the strengthened pier.