- Shear reinforcement structure for flat plate slab-column connection using shear reinforcement band

摘要

The present invention is a slab of a weightless plate structure using a mesh-type shear reinforcement, which is easy to manufacture and installs a simple mesh shear reinforcement so that it can more effectively exert the restraining force against punching fracture for vertical load and eccentric shear fracture for seismic load It provides a reinforcement structure at the shear joint of the column. According to an embodiment of the present invention, the lower reinforcing bar 12 supported and reinforced by the main head 102 of the column 10; One end is located around the upper periphery of the main head 102 of the column 10 and is installed to be supported by the lower reinforcing bar 12, and is made of expanded metal having a net hole 210a and has a triangular base 211 of a certain width. ), a triangular hypotenuse 212 that is symmetrical with each other, and a triangular support foot 213 bent inward from the lower end of the triangular hypotenuse 212 to form an expanded triangular mesh body 210 having a triangular cross section over a certain length ) and a network-type shear reinforcement 20 including both ends of the expanded triangular mesh body 210 and one or more triangular mesh reinforcement members 220 installed therebetween; an upper reinforcing bar 14 reinforced on the upper end of the reticulated shear reinforcing bar 20; a concrete slab 16 formed by pouring concrete to a certain thickness so that the upper reinforcing bar 14 is built-in over the formwork installed in the lower part of the lower reinforcing bar 12; The hypotenuse reinforcing plate 230 is installed on the inner surface of the triangular hypotenuse 212 of the expanded triangular mesh 210 and has a plurality of concrete composite holes 230a in the longitudinal direction in a plate-like shape made of a steel plate having a certain thickness; It is characterized in that it includes.