PURPOSE: To lighten a slab by reduction of used concrete and simplify the process thereof, by arranging truss structures between the upper and lower slabs by making use of vertical reinforcing rods of the slabs at both upper and lower sides.
CONSTITUTION: The vertical reinforcing rods 5 arranged in the upper end slab 3 and the lower end slab 2 are regarded as the upper string and the lower string respectively and a plurality of truss beams provided with slanting members between the reinforcing rods 5 are installed laterally every certain interval between the upper end slab 3 and the lower end slab 2. Next, the upper part of the truss beam is buried in the upper end slab concrete and the lower part of the truss beam is buried in the lower end slab concrete respectively to unify the whole body.
TOMITA SHIYOUJI
YOSHIGAI SHIGERU
NIWA NAOMIKI
| JPS547721A | 1979-01-20 |