ERECTION STRUCTURE OF FLOOR SLAB FOR BRIDGE

PURPOSE: To prevent any lost motion from occurring by way of forming a floor slab for a bridge into an isosceles triangle as well as to connect and integrate two isosceles triangular floor slabs adjacent in the bridge longitudinal direction through lateral tightening prestressed concrete structural steel. CONSTITUTION: In a lot of isosceles triangular floor slabs 1, these apexes are set up so as to be alternately turned to one side and the other side in the bridge cross direction, and they are mounted on plural pieces of support beams. Lateral tightening PC structural steel 3 is inserted through over two isosceles triangular floor slabs 1 adjacent in the bridge longitudinal direction, and with the PC structural steel 3, the isosceles triangular floor slabs 1 adjacent in the bridge longitudinal direction are connected together.