FRICTION PENDULUM-TYPE BASE ISOLATION DEVICE AND INSTALLING METHOD FOR IT

摘要

PROBLEM TO BE SOLVED: To provide a friction pendulum-type base isolation device capable of allowing approximately double horizontal displacement and not to be largely projected outward from a building outer contour by miniaturizing the flat outer shape, and an installing method for the friction pendulum-type base isolation device, capable of reducing machining costs and material costs by constituting curved receiving surfaces of an upper load receiving part and a lower load receiving part of the friction pendulum-type base isolation device through a process of integrating a metallic thin plate and a grout solidification layer with each other. ;SOLUTION: A metallic thin plate having a curved receiving surface 5a is mounted on anchor bolts 3 erected from the ground 1, and a nonshrinkage grout material is filled and integrated between the metallic thin plate and the ground 1. A nonshrinkage grout material is filled and integrated between a metallic thin plate 24 having a curved receiving surface 24a constituted at the same radius of curvature as the receiving surface 5a of the metallic thin plate and a flat plate 25, the flat plate 25 is fixed to an H-type steel 16, and a shoe 9 is interposed between the curved receiving surfaces 5a, 24a so as to be freely slid.;COPYRIGHT: (C)1999,JPO