NBN ISO 22762-2:2021

This document specifies minimum requirements and test methods for elastomeric seismic isolators
used for bridges, as well as rubber material used in the manufacture of such isolators.
It is applicable to elastomeric seismic isolators used to provide bridges with protection from earthquake
damage. The isolators covered consist of alternate elastomeric layers and reinforcing steel plates, which
are placed between a superstructure and its substructure to provide both flexibility for decoupling
structural systems from ground motion and damping capability to reduce displacement at the isolation
interface and the transmission of energy from the ground into the structure at the isolation frequency.