Nippon Steel & Sumikin Materials Co., Ltd.

Nippon Steel Chemical & Material Co., Ltd.

Atsuya Komori

Akira Kobayashi

Yuya Hidekuma

Kazuo Ohgaki

A laminate material for reinforcement is provided that can reduce on-site work steps and facilitate quality control of a resin to be used to achieve improvement in work efficiency, and that can suppress debonding of a reinforcing member to obtain a high reinforcing effect. A laminate material for reinforcementbonded to and integrated with a surface to be reinforced of a structureto reinforce the structure has a fiber-reinforced composite member, a high-elongation elastic resin layerformed on a surface on a bonding side to the structure of the fiber reinforced composite member, and an intermediate resin layerdisposed between the fiber-reinforced composite memberand the high-elongation elastic resin layer

Laminate material for reinforcement, reinforcing method, and reinforcing structural body for structure

A reinforcing method and structure for a steel structure and an elastic layer forming material for reinforcing a steel structure are provided that can prevent a reinforcing effect from being lowered by direct sunlight, can obtain a sufficient reinforcing effect, and can prevent a fiber sheet from being peeled away from a steel structure surface before the fiber sheet is torn. The reinforcing method for a steel structure, in which a fiber sheet including reinforcing fibers is bonded to a surface of the steel structure to integrate the fiber sheet with the steel structure, includes (a) a step of applying and hardening a polyurea resin putty to the surface of the steel structure to form an elastic layer, and (b) a step of bonding the fiber sheet to the surface of the steel structure having the elastic layer formed thereon with an adhesive agent.

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Tokyo, Japan

Atsuya Komori