A simple procedure for the wave impact forces for circular structure member in breaking wave zone

Abstract

The characteristics of breaking wave forces are studied and the corresponding estimation procedures for them are proposed. For the characterization of the wave forces, three parts, i.e., drag force, inertia force, impact force are introduced and identified, respectively. Among drag force and inertia force and impact force, the impact force is mainly studied and a concise form of the force is proposed with the application calculation scheme. Example calculations of impact force are presented by the proposed scheme for a circular structural member. For a typical sea condition and member size, the proposed procedures for the breaking wave forces calculation are well demonstrated. It is found that this procedure for wave impact forces calculation for cicular structure member is simple and easily applicable especially for the early design stage.