Abdulameer Qasim Hasan¹, Rafi Mohammed Qasim^1,

Fixed offshore structures are designed to resist lateral dynamic loading due to wave, wind, current and ships impact loading. Pile foundations are very important part in fixed offshore structures that is supported these structure, the behaviour of fixed offshore structure is affected by the pile response. The aim of this study is to investigate the effect of location and soil side slope on the response of these structures under wave loading. Three dimension analyses has been performed by using ABAQUS program, structure was represented by three dimension Euler-Bernoulli beam and used twenty node brick element to represented the soil element. Penalty method is used to represent the interface between soil and pile. The calculation of wave loading based on Morison Equation, this equation includes the velocity and acceleration of water particles that is calculated from nonlinear wave theory (Stock’s theory). The result show the response is increased at distance about 10 m for the coast and when the side slope angle is 90° due to the effect of turn wave.

offshore pile, ABAQUS, offshore location, soil side slope