PAN STRUCTURE OF BASE ISOLATING BEARING

摘要

PROBLEM TO BE SOLVED: To provide a pan structure of a base isolating bearing which can eliminate the problem of corrosion due to the infiltration of water and reduce costs. SOLUTION: Base-isolating support 4 having a ball 3 is provided on the structure 2 side of a base isolating bearing, and a pan 5 whose upper surface 5a is formed in the shape of a cone with an almost rectilinearly slanted face is secured to the foundation 1 side of the base isolating bearing, the ball 3 making contact with the upper surface 5a. A through hole 7 is formed in the center of the pan 5 in such a way that the bore R of the through hole 7 at the surface of the pan 5 meets the relation: R