Construction construction method null of the box-frame construction which uses the precast concrete board and the precast concrete board

摘要

PURPOSE:To place concrete only at the joint sections of concrete boards and reduce the number of man-hours of the work by arranging joint recessed channels on end surfaces of the precast concrete boards over the partial sections of reinforcements. CONSTITUTION:Between the top reinforcements 11 and bottom reinforcements 12 of precast concrete boards 10, lattice reinforcements 13 and horizontal reinforcements 14 are formed in triangular shapes. Then, on the end surfaces of the precast concrete boards 10, recessed channels 15 are formed over the lattice reinforcements 13, and the partial sections of the lattice reinforcements 13 are exposed. After that, the recessed channels 15 adjacent to the composed precast concrete boards 10, 10 are arranged to be confronted with each other, and in the jointed recessed channels 15, cast-in-place concrete is placed. As a result, only at the joint sections of the precast concrete boards 10, the concrete is placed, and so the number of man-hours of the work can be remarkably reduced.