抄録
This paper deals with the experimental and analytical study of seismic response behavior of piping systems in industrial facilities.In industries, Piping systems are generally supported on hangers, rod restraints, friction supports etc.A three dimensional mock-up piping supported on rod restraints and friction support is excited by large scale(15m×15m)shaking table.At the friction support, two dimensional nonlinear sliding motion is observed between the piping and friction support due to simulated earthquake excitation.Free vibration analysis is carried out using FE model of the piping system.A modal analysis procedure is evolved to calculate the responses of the piping supported on friction support.Maximum responses and dissipated energy at the friction support obtained analytically are compared with those obtained in experiments.A good agreement is observed between the experiment results and those obtained analytically.
