METHOD AND DEVICE FOR CONSTRUCTION OF FLOOR SLAB

摘要

PROBLEM TO BE SOLVED: To construct safely and efficiently a floor slab in a high accuracy. SOLUTION: A floor slab is constructed by placing concrete through a center form 18 and a wing form 22. The wing form 22 is arranged so as to be vertically movable and to be detachable on a scaffold 40 extended down from a gantry crane 38 arranged on the main girders of both sides of bridge girders 14 and the constructing slab to freely move the wing form 22 back and forth together with the transfer of the gantry crane 38. The wing form 22 is fixed by a fixing tool 52 constituted of a lateral beam 54 of the rear face of the wing form 22 and an expansible jack 56 pivoted to the basal end of the lateral beam 54.