SYSTEMS AND METHODS FOR PROVIDING BASE ISOLATION AGAINST SEISMIC ACTIVITY

摘要

A pedestal base isolation system assembly including a base plate having an anchoring layer and a top plate slidably positioned above the base plate. At least one of the top and base plates includes a textured surface, wherein desired coefficients of static and kinetic friction between the top plate and the base plate prevent relative movement of the two plates with normal operation and yet allow the top plate to move relative to the base plate during a seismic event. In one example, the sliding surface has a coating such as a polyester (e.g., polyester triglycidyl isocyanurate) or a low surface energy coating (e.g., silicone-epoxy coating). In another example, the seismic isolation system further includes a pedestal for supporting an object on the isolation assembly.

主权项

1. A pedestal base isolation system assembly comprising
a base plate having a bottom surface and a top surface; an anchoring layer at least partially covering the bottom surface of the base plate; a top plate slidably positioned above the top surface of the base plate and having a bottom surface and a top surface; a pedestal mounted to the top surface of the top plate; wherein at least one of the top surface of the base plate or the bottom surface of the top plate includes a textured surface; and a coating at least partially covering at least one of the top surface of the base plate or the bottom surface of the top plate, the coating providing a coefficient of static and kinetic friction between the top plate and the base plate that prevents relative movement of the two plates with normal operation and yet allows the top plate to move relative to the base plate during a seismic event.