REINFORCEMENT MEMBER FOR PREVENTING PUNCHING SHEAR AND CONSTRUCTION METHOD USING THE SAME

摘要

PURPOSE: A stiffener for punching shear prevention and a construction method for a base plate using the same are provided to use a dish-shaped reinforcing material installed on the head of a hollow pile, thereby preventing punching shear and reducing the thickness of the base plate and the amount of arranged reinforcing bars. CONSTITUTION: A stiffener(10) for punching shear prevention includes an upper disk, a conical skirt portion, truss member installation-cum-filler injection holes, an inner shaft, and a circular flange. The upper disk has a prescribed thickness. The conical skirt portion is inclined at a prescribed angle against the plane of the upper disk, and has cross sections increasing downwardly. The truss member installation-cum-filler injection holes are formed on the circumference of the conical skirt portion at regular intervals. The inner shaft is vertically and downwardly installed at the underside of the upper disk, and is inserted into a hollow pile(100). The circular flange is formed at the lower end of the conical skirt portion. The circular flange having a certain width is horizontally bent to be parallel to the upper disk.