| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a full precast concrete floor slab which can suppress deflection by virtue of lightness in weight even in the case of a large span without increasing the thickness of the whole floor slab, and a rational structure of a floor, using the full precast concrete floor slab. <P>SOLUTION: This rectangular full precast concrete floor slab longer in one direction comprises a flat plate section 2 which forms like a rectangular flat plate with a fixed plate thickness, both the ends of which are supported by beams and which is laid between the beams, and a reinforcing rib 3 which is integrally formed along the longitudinal direction of the flat plate part in the state of protruding to the side of its undersurface except for both the ends of the flat plate part. Both ends of prestressing steel 5 are anchored to both ends of the reinforcing rib, so that prestress can be introduced into the reinforcing rib. A standard floor slab 1A with a fixed width dimension, and an adjusting floor slab smaller in width dimension than the standard floor slab 1A are adopted as the full precast concrete floor slab in a combined manner; and the floor is composed of a set of the plurality of standard floor slabs and the single adjusting floor slab. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
