Jfe Steel Corporation

Osaka University

Jfe Civil Engineering & Construction Corporation

Ryota Tobari

Tomohiro Kinoshita

Kazuaki Miyagawa

Susumu Kuwahara

Mitsutoshi Yoshinaga

Yuki Hatanaka

Hiromitsu Morioka

An upper board fixed to a lower part of a structure; a lower board fixed to a foundation at the same position in a plan view with respect to the upper board; and four seismic isolation plates fixed to the upper and lower boards and extending in a cross direction in a plan view. The seismic isolation plates are U-shaped members obtained by bending a long steel sheet, and include an upper fixing part parallel to a lower fixing part, an upper inclined part and a lower inclined part that are closer to each other while separated from the upper and lower fixing parts, and a connecting part that connects the upper and lower inclined parts. The four seismic isolation plates are fixed to upper board at position where upper fixing parts do not overlap and are fixed to lower board at position where lower fixing parts do not overlap.

Steel damper for seismic isolation and seismic isolation structure

Growing community of inventors

Tokyo, Japan

Ryota Tobari