Abstract
There are so many problems like narrow site space, overlapping works and limited available cranes to construct a Railway bridge in a great city. To make its at Akabane station and its connections for an example of these severe conditions using precast elements, we compare the structural system, the construction period and the actual cost with that of an ordinary way. After considering them, we apply the RC half precast slab for the Tohoku passenger and freight line and try to adopt the PC half precast slab for the Tohoku line. This report describes the outline of making railway land bridges using prefabricated members.