Anti-collapse buffer chain for bridge

Abstract

Provided is an anti-collapse buffer chain for bridge that enables the prevention of stress concentration on a contact portion between rings when an impact load acts. In an anti-collapse buffer chain for bridge 1 that includes a ring linked body 2 in which a plurality of rings are linked to one another, and a covering body 3 covering a peripheral area of the ring linked body 2, and prevents a bridge upper structure, such as a bridge girder, from collapsing by linking the bridge upper structure to a bridge lower structure, such as a bridge abutment and a bridge pier, excluding a part of an end ring 21a (21b) at an end portion, the ring linked body 2 is covered with a rubber elastic body, the end ring 21a (21b) is brought into contact with an adjacent ring 22a (22b) that is adjacent to the end ring 21a (21b), and a wire diameter of a ring steel material of one or both rings of the end ring 21a (21b) and the adjacent ring 22a (22b) is set to be larger than a wire diameter of a ring steel material of another ring of the ring linked body 2.

Dependencies are inferred from the claim text.