Abstract
The purpose of this study is to investigate the relation between the damping model used in the horizontally laminated ground model and the accuracy in identification of the parameters using vertical array records of ground motions. The stiffness and damping parameters are generally identified in this type of problem, supposing onedimentional multiple reflection of shear wave. As to the stiffness, the shear wave velocity of each layer is identified. On the other hand, as to the damping, several models have been proposed, moreover some researchers identified uniform parameters through the layers and others identified the parameters of each layer. In this paper, it is demonstrated how the difference of damping model and conditions of analysis influence on the accuracy of identification of damping parameters.
