STRUCTURE REINFORCEMENT METHOD BY ENLARGEMENT OF SECTION AREA OF REINFORCEMENT MEMBER END-PORTION

摘要

PURPOSE: A method for reinforcing a structure is provided to reduce dropout destroy generated on the structure by dispersing shearing force applying to an end portion and to prevent the dropout of stiffener. CONSTITUTION: A concrete structure(120) is reinforced by attaching a joining steel plate(124) on an end portion(E) of a reinforcing plate(122) attached on a lower end of the concrete structure. If load is applied to the concrete structure, tensile force is applied to the reinforcing plate to disperse shearing force for increasing area of the end portion. The shearing force applied to unit length of the reinforcing plate is reduced to reduce shearing stress generated in concrete by dispersing the shearing force as much as improved area. Thereby, the crack of the concrete in the end portion of the reinforcing plate is controlled by reducing the shearing stress to increase attachment load resistance of the end portion.