HEADED RIB PRECAST CONCRETE SLAB AND CONNECTION METHOD USING THE SAME

摘要

The present invention relates to: a headed rib half precast concrete slab which includes a horizontal rib and a hollow part in order to form the hollow part using vertical ribs and the horizontal rib by forming the vertical ribs and the horizontal rib connecting the vertical ribs in the upper side in a single united body. A desirable embodiment of the headed rib half precast concrete slab, having the horizontal rib and the hollow part, comprises: a flat board which is formed in a board shape; a lateral end rib which is formed in a longitudinal direction by protruding upwards from both horizontal end parts of the upper side of the flat board; a plurality of central ribs which is formed in a longitudinal direction by protruding upwards from each separated point at a predetermined distance in both horizontal end parts of the upper side of the flat board; a central horizontal rib at the longitudinal center of the flat board to connect the lateral end rib with the plurality of central ribs in a horizontal direction; and a lateral horizontal rib which is formed to have the hollow part between the central horizontal ribs by being formed to connect the lateral end rib with the plurality of central ribs in a horizontal direction by being separated at a predetermined distance from the central horizontal rib to both horizontal sides of the flat board.