Abstract
The Kyushu Shinkansen (Nishi-Kyushu route) between Takeo-Onsen station and Nagasaki station, 66km in length, is under construction. The Genshu bridge is placed in a valley between tunnels in Isehaya city (47.263km from Takeo-Onsen station). The bridge structure is adopting a GRS integral bridge using a PC girder. Although, in the past, there were cases of GRS integral bridges using a RC girder or a SRC girder. The structure used for the Genshu bridge is the first case for railway infrastructures. This paper presents the initial railway infrastructure project of the GRS integral bridge with the PC girder.
