GRS INTEGRAL BRIDGE WITH PC GIRDER –GENSHU VIADUCT BRIDGE IN KYUSHU SHINKANSEN (NISHI-KYUSHU ROUTE)

Abstract

Kyushu Shinkansen (Nishi-Kyushu route) is the route of about 66km between Takeo-Onsen and Nagasaki stations, which is currently under construction. The Genshu Viaduct Bridge in Nishi-Kyushu route is GRS integral bridge with PC girder to be located in the valley of about 70m a short tunnel are continuous in Isahaya city (Takeo-Onsen station origin 47k263m). GRS integral bridge had been built with RC girder and SRC girder so far, but this is the first time GRS integral bridge is built with PC girder. In this paper, we report on the design and construction of the GRS integral bridge with PC girder will be the first case while thinking into account past achievement of GRS integral bridge buildings.