FUNDAMENTAL STUDY OF ENERGY TRANSITION IN BASIC DYNAMIC SYSTEMS CONTROLLED BY UPLIFTING SLIDE SHOE

Abstract

 The Uplifting Slide Shoe (UPSS) is proposed as one of the method for upgrading the seismic performance of multi-span continuous girders. UPSS transfers the kinetic energy to the potential energy in the vertical direction by sliding girders up on the inclined slope during earthquake, and restricts horizontal displacement. This study is aimed at grasping the energy transferring during earthquake using UPSS. A basic dynamic problem was examined by using single mass system in this paper. The result shows that the horizontal energy was temporarily transferred to the potential energy of UPSS and the strain energy of the superstructure, and was reduced steady by friction and viscous damping.