Structure for widening, widening structure, widening method of floor slab, and renewal method of floor slab

摘要

Problem to be solved: to provide a structure for widening which can be made lightweight and effective in rigidity, a widening structure using it, a floor plate widening method and a floor plate renewal method.The widening structure of the present invention comprises an additional digit and a wall column.The additional digit is provided with an inner plate portion projecting from the floor plate portion to the lower side of the floor plate portion and an outer digit portion projecting in the vertical direction of the floor plate portion on the other end side of the floor plate portion on the one end side of the floor plate portion having the wall high section and the floor plate portion.The wall column is placed on the floor plate.The widening structure of the present invention is a structure of a floor plate which is widened by using the widening structure of the present invention.The floor plate widening method of the present invention is a floor plate widening method for widening existing floor plates using the widening structure of the present invention.The floor plate renewal method of the present invention is a method for updating an existing floor plate to a new floor plate using the widening structure of the present invention.Diagram