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Volume Title: ICASGE2023

DOI: ICASGE-STL

¹Omar Elgendy ; ²Dr Mohamed Mohamedein; Dr Mohamed Mohamedein

¹Tanta

²Department of Civil Eng., Faculty of Eng., Suez Canal University, Ismailia, Egypt

This paper presents a structural system for offshore wind turbines on monopiles that enhance the lateral stiffness of the tubular tower by supporting it with outrigger system which is widely used in high rise buildings. This new system is studied as Timoshenko beam-column elements under static and dynamic loads considering the nonlinearity in geometry and the soil-structure interaction effect. As a practical application for the proposed system, a numerical study was carried out to study the behavior of the suggested system under different load cases using soil data from the Red Sea region in Egypt, which is preferred for wind turbine structures. The study presents guidelines and diagrams for the suggested system that may be helpful for designers and researchers

Wind energy is one of the renewable energy sources that is widely used to produce electricity. With the technological progress, and the large number of research on the subject, wind turbines have developed, producing a greater amount of electricity. The development of wind turbine towers with heights above 150 meters is required to generate more power due to the rise in wind speed with height. However, due to the significant values of stresses and displacements on the tower body, the construction of tubular towers that act as cantilevers with a height of 150 meters or larger needs large sections at the base.

Offshore Wind Turbines; Outrigger; Tapered element; Timoshenko Beam, Geometrical Nonlinear analysis

Steel Structures (STL)