The purpose of lead injection is to improve the energy absorption effect of the bearing and ensure that the bearing has moderate damping; Second, increase the early stiffness of the bearing, which is beneficial to control the wind response and resist the micro vibration of the foundation
As the leading product, the isolation system composed of this bearing has been widely used in large and medium-sized bridges abroad, and has achieved good results
High damping bearings are made of high damping materials
High damping can be obtained by adding graphite into NR or synthesis, and the damping characteristics of the material can be adjusted according to the amount of graphite added