REINFORCING METHOD FOR THROUGH HOLE IN CONCRETE CONSTRUCTION BEAM AND DIAGONAL REINFORCING BAR USED THEREIN

摘要

PURPOSE: To provide a reinforcing method for a concrete construction beam through hole, capable of inserting the arrangement of reinforcement easily into a range from top to bottom of a beam bar assembly becoming a weak point from the standpoint of strength in the case where the circumference of this beam through hole is reinforced by a ring through hole reinforcement metal fitting and simultaneously being inexpensive in manufacturing cost. ;CONSTITUTION: A ring through hole reinforcement metal fitting (10) is set up at both ends of a predetermined through hole axis (O) of a beam bar assembly (8) inclusive of a main reinforcement (1) and a stirrup (2) and this metal fitting is bound to a reinforcing bar around a through hole. A sleeve (4) to form the through hole in an opening (13) bormed by an end extending in the radial direction is inserted into the center of the reinforcing metal fitting, and then each diagonal bar (20) of straight bar material with a hook at the tip is inserted into the beam bar assembly (8) aslant in the opposite direction with two pieces at one amin reinforcement with each other from the center of each main reinforcement (1) in space between two stirrups (2 and 2') at both sides of the through hole in making an end of the diagonal bar at the opposite side to the hook. In succession, each hook of respective diagonal bars is wrapped on each main reinforcement in up and down of the through hole toward the inside of beam width, binding the hook.;COPYRIGHT: (C)1996,JPO