REINFORCEMENT METHOD

PROBLEM TO BE SOLVED: To provide a new reinforcement method intended for not a column but a beam or a girder of a reinforced concrete structure viaduct.SOLUTION: A through-hole, through which a through bolt 28 passes, is provided in an approximately central part in a vertical direction or an almost equally allocated position and in a direction orthogonal to a horizontal direction, in a target horizontal part (vertical beam 6) to be reinforced. A U-shaped cross-section reinforcement member 22 is temporarily arranged by being applied to the target horizontal part, and the through bolt 28 passes through the through-hole of the vertical beam 6 from the outside of the side part of the reinforcement member 22 and is fastened by a nut 30 (fastener).