MAIN REINFORCEMENT ANCHORING PLATE

PROBLEM TO BE SOLVED: To facilitate the setting by providing a guide groove opened along the outer periphery of the main body of a plate and arranging a fixed groove connected to the guide groove perpendicularly to each other, and then by inserting a main reinforcement anchoring plate to the gap between units installed at predetermined intervals to the end portions of the reinforcement. SOLUTION: This main reinforcement anchoring plate 10 has openings made along the outer periphery of the plate main body at constant intervals d, and this opening 11a forms a guide groove 11 opened to a taper shape. Also, a fixed groove 12 is connected normal to the guide groove 11, and a deep end portion 12a of the fixed end groove 12 is formed to a half-circle shape so as to secure the reinforcing bar. At first, a reinforcing bar 14 connected to a nut 13 at the end is entered from the guide groove 11a and inserted to the deepest part in the guide groove 11 and then moved prepedicularly and pushed until the fixed groove 12 is linked to the deepest portion 12a, and the nut 13 is tightened and foxed. By this way, the main reinforcement anchoring plate is imply inserted for installation and the reinforcing bar 14 can be accurately positioned.