SHEAR REINFORCING APPARATUS OF REINFORCED CONCRETE STRUCTURE AND METHOD FOR REINFORCED CONCRETE STRUCTURE

A shear reinforcing apparatus of a reinforced concrete structure and a construction method of a reinforced concrete structure are provided to prevent the brittle fracture of a reinforced concrete structure by repeated load such as seismic load by increasing strength on axial load by resistance enlargement effect and restraint effect of tensile stress. A shear reinforcing apparatus of a reinforced concrete structure comprises many main reinforcing bars(5) arranged in the shape of a cylinder or a prism at regular intervals, many positioning spacers(10) coupled with rings(S) and connecting one of the main reinforcing bar with another main reinforcing bar to keep the arranged main reinforcing bars at regular intervals, a fixture provided with joints coupled to the main reinforcing bars and many projections(D) formed at regular intervals, and rope type fiber reinforced polymer bars(15) arranged to the main reinforcing bars by forming knots on the projections of the fixture or the main reinforcing bars at regular intervals. A construction method of a reinforced concrete structure comprises the steps of: arranging plural reinforcing bars to the inside of a form, and mounting positioning spacers to the main reinforcing bars; attaching fixtures to the arranged main reinforcing bars; applying tensile force to the main reinforcing bars attached with the fixtures using fiber reinforced polymer bars and winding round the main reinforcing bars while tying knots to projections of the fixtures or the main reinforcing bars at regular intervals; and placing concrete to a form and curing the concrete, and then stripping off the form.