Form Unit with Drawing-out Type Coupler Bar for Hollow Core Slab System Form Using the Same and Construction Method of Hollow Core Slab

摘要

In the present invention, since the draw-out joint reinforcing bars are provided instead of the reinforcing bars protruding from the reinforcing bar integrated slab die unit for a hollow slab in which the hollow ball, the reinforcing bars and the mold are integrally assembled, the reinforcing bar integrated slab die units can be installed to face each other, A system structure for a hollow slab to be completed by applying such a slab form unit to a tunnel form, a table form, a flying form, etc., and a hollow slab construction method preferably using such a system form . A reinforced concrete integral slab die unit (FU) for a hollow slab according to the present invention comprises: a slab form panel; Reinforcing spacer; Slab primary reinforcement; Pullout type rebar; Hollow ball rebar assembly; And a slab second reinforcing bar. Here, the joint reinforcing bar is provided as a pull-out joint reinforcing bar so that the entire length of the reinforcing bar can be taken out of the slab formwork panel while being installed on the first reinforcing bar of the slab. Thus, the reinforcing bar integrated slab die unit for a hollow slab according to the present invention can be installed to face each other without interference and to realize lap joint.