Damping Ratios of a Steel Framed Conical Shell

Abstract

Damping vibration experiment on an actual shell structure (a steel framed conical shell) was carried out to clarify damping characteristics of the shell structure, and also to aid in preparing a data base on damping ratios of shell and spatial structures for use in dynamic response analysis. The experimental methods are the microtremor observation, impact vibration test and the vibration test by human power. The analytical methods for evaluating damping ratios are the half-power method, the random decrement technique and so on.