A simplified method for calculating the accumulation of irreversible rotations of wind turbine shallow foundations
Luca Flessati (Geo-engineering)
Pietro Marveggio (Politecnico di Milano)
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Abstract
Wind turbines represent a convenient source of renewable energy and their diffusion is a fundamental step for reducing carbon dioxide emissions, main responsible for global warming. Turbine towers are characterized by large heights, therefore the wind load induces considerable bending actions at the base of the structure. Although, especially offshore, deep foundations are usually adopted, shallow foundations are still an option in case of onshore installations. These circular shallow foundations are massive concrete structures that counteract the bending moment with their own weight. The optimization of the design and the extension of the service life are fundamental from both economic and environmental perspectives. These will increase the competitiveness of energy production from renewable wind sources over fossil ones, thus boosting the transition toward sustainable energy.
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