Dynamic Foundation-Fluid-Structure Interaction of a Concrete Gravity Dam: Influence of Input Signal Frequency Content and of Water Modelling on Wave Propagations—Example of Pine Flat Dam

Abstract

This paper presents a contribution to the analysis of the Pine flat concrete dam, for the 15th ICOLD benchmark. Models developed and main results are presented, as well as additional developments, regarding the influence of some factors on the response of the model to the high frequency impulse and the low frequency impulse defined by the formulators. In order to investigate this frequential behaviour, frequency response analysis is performed. The effect of mesh size, of compressibility of water, and of reflection factor of water in the reservoir is investigated.