NUT FIXING DEVICE AND REINFORCING STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a nut fixing device and a reinforcing structure capable of restraining deformation of a structure even when tensile force exceeding an elastic limit repeatedly acts. SOLUTION: This reinforcing structure has a bolt member 52 engaged on one end side with a basic structure 40, and a nut member 53 engaged with the basic structure 40 By being threadedly engaged with the other end side of this bolt member 52. The reinforcing structure 10 has the nut fixing device 20 for urging the nut member 53 in the fastening direction to the bolt member 52.