IMPACT LOADING AND DYNAMIC RESPONSE OF CAISSON BREAKWATERS

H. Oumeraci, H.W. Partenscky, S. Kohlhase, P. Klammer

Abstract


The results of large-scale model tests on impact loading and dynamic response of a caisson breakwater are presented. Hydraulic model tests are performed in which the impact loading is induced by breaking waves on the structure. Horizontal impact forces, uplift forces and the related overturning moments are determined. The transmissibility of the impact loads and the accelerations of the structure are investigated (dynamic response).. The hydraulic model tests are supplemented by pendulum tests on the same caisson breakwater model used in the hydraulic model tests in order to determine the characteristics of the structural model itself. The added mass of water oscillating with the structure, the stiffness of the foundation and the damping ratio are evaluated from these tests.

Keywords


breakwater; impact loading; dynamic response; caisson

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