Simplified method for determining the moment-rotation curve in eco-sustainable wind tower foundations. (15th April 2023)

• Record Type: Journal Article
• Authors: Campione, Giuseppe
• Is Part Of: Engineering structures. Volume 281(2023)
• Publication Date: 2023-04-15
• Subjects: Wind tower -- Shallow foundation -- Shaft foundation -- Stress analyses -- Soil-foundation interaction; Structural engineering -- Periodicals; Structural analysis (Engineering) -- Periodicals; Construction, Technique de la -- Périodiques; Génie parasismique -- Périodiques; Pression du vent -- Périodiques; Earthquake engineering; Structural engineering; Wind-pressure; Periodicals; 624.105
• DOI: 10.1016/j.engstruct.2023.115760
• Languages: English
• ISSNs: 0141-0296

Abstract

Highlights: Soil-structure interaction of eco-sustainable reinforced concrete foundations of wind towers, Moment-rotation capacity curve including the soil plasticization or RC structure crisis in flexure and shear. Moment-rotation curve with purposes of the ultimate and operating limit state verifications of wind towers. Direct plinth and single piers or shaft foundation in elastic and plastic phases considered as rigid bodies. Winkler soil model for in elastic state and fully plastic model to model for non-linear behavior of soil. Corrective coefficients to consider of type of soils (cohesive and not cohesive) and to take into account of the flexibility of foundation. Abstract: The objective of the study, concerning the soil-structure interaction of eco-sustainable reinforced concrete foundations of wind towers, was to determine the moment-rotation capacity curve including the soil plasticization or RC structure crisis in flexure and shear. The study was based on elastic and plastic analyzes of shallow and deep foundations. The moment-rotation curve of the soil-foundation complex was determined, useful for the purposes of the ultimate and operating limit state verifications of wind towers. The displacement component induced by the rotation of the foundation on the overhead displacement of the wind tower was calculated. Finally, an experimental validation of the proposed model was made with the data available from the literature.