Uplifting Slide Bearing (2) – Verification Tests of Seismic Response –

A new type of slide bearing characterized by horizontal and inclined sliding surfaces was developed. With the application of this bearing, which will be referred to as Uplifting Slide Bearing, girders are allowed to move on the horizontal sliding surface during temperature changes while sliding takes place on the inclined sliding surface for large displacement response in case of strong earthquakes. The kinetic energy of the superstructure will be transformed to the gravitational potential energy during the sliding on the inclined sliding surfaces, thus controlling the seismic response and the distribution of inertia force. In order to evaluate the influence of this impact, component tests as well as shaking table tests using a shaking table were performed. As a result, we could verify the characteristic of a collision at the beginning of the inclined sliding surface.