Seismic Responses of Piping System with Friction Sliding on a Plane

Abstract

This report deals with the experimental and analytical study of seismic response behavior of piping systems in industrial facilities. Piping is generally set up on the supporting structures, therefore when shaking motion is given, frictional vibration should take place between the piping and the supports, and two dimensional sliding motion occurs. A three dimensional mock-up piping and supporting structure model is excited by large scale (15m×15m) shaking table. First mode and second mode of FEM piping model are calculated independently, and maximum responses and dissipated energy considering the frictional behavior are compared with the responses obtained by experiment. The process to calculate the response of friction system is evaluated.