PURPOSE: To save the labor of field-work, and to shorten the term of work by making a lower layer floor of framework precast concrete and forming an upper layer floor in a wall type precast concrete structure.
CONSTITUTION: Precast concrete columns 1, precast concrete girders 2 and precast concrete beams 3 are carried on a field, and erection is carried out. Concrete is placed onto the connection sections 4 of each member and a floor section. Wall type precast concrete wall slabs 5 and precast concrete floor slabs 6 are built. joint reinforcements are buried to connecting sections, and connected to the Joint reinforcements 8 of members. The wall slabs 5 are unified by sleeves 7. Consequently, the upper layer floor C of framework precast concrete and the lower layer floor B of wall type precast concrete are unified. Accordingly, the labor of forms, the arrangement of reinforcements and concrete works on the field is saved, and workability is improved and the term of work can be shortened.
ASHIKAWA SHIGERU