General vibration monitoring: Coupling between the experimental hall structure and storage ring tunnel and basemat

摘要

The primary objective of this study was to measure the coupling between the experimental hall structure and the storage ring tunnel. The study was motivated in part by concern over the potential for wind excitation of the building to couple through the ground and/or piping/ductwork to the storage ring basemat. Unfortunately, there was very little wind on the measurement date. However, it can be assumed that the wind turbulence would excite the experimental hall structure at one or more of its resonant frequencies. Similar coupling information can be obtained by using ambient vibration as the excitation source and measuring the resultant structure/basemat response and associated coupling. This was the approach taken in this study.