REINFORCING MATERIAL FOR PREVENTING PUNCHING SHEAR, AND CONSTRUCTION METHOD USING SAME FOR AREAS WHERE PILLARS JOIN WITH SLABS AND SPREAD FOUNDATIONS

摘要

The present invention provides: a reinforcing material for preventing punching shear, whereby punching shear is prevented by constituting a conical or semi-spherical reinforcing material, of which the cross-sectional size gradually increases downwards, such that the range of resistance to shearing forces is spread widely; and a construction method using same for areas where slabs join with pillars and where pillars join with spread foundations. The reinforcing material for preventing punching shear of the present invention comprises: an upper disk having a predetermined thickness; a skirt section which extends from the circumference of the upper disk, and widens from the top to the bottom as the cross sectional area gradually spreads in a zone of a fixed height; and a concrete charging chamber which opens towards the bottom such that the inside of the skirt section can be filled with concrete.