A mockup piping system damping evaluation and a simulation of the mockup piping vibration tests

A mockup piping system vibration test was performed to investigate the piping system seismic damping ratio when the piping system vibrate with large displacement under strong earthquake conditions. The present paper describes evaluated mockup piping system damping ratios by analyzing vibration test data and a simulation for the vibration test. The mockup piping system used in this test was made of stainless steel and had 46.5-m. total length with 10-in. diameter. The simulations were performed to confirm the evaluated piping system vibration properties obtained in the present study by applying a linear structural analysis model.