Assessment of Brazilian onshore wind turbines foundations
نویسندگان
چکیده
Abstract Onshore wind turbine foundations are subjected to large overturning moments. The action imposes cyclic and dynamic loading conditions which occur in extreme service scenarios. Deep foundations, when used, transfer this moment through a pile group combines the axial lateral resistance of all piles. paper explored key aspects onshore Brazil. main reason explore subject is that several authors consider well-understood topic; however, limited data from actual situations have been published, especially developing countries where energy projects only recently started. Thus, survey Brazilian companies foundation designers was conducted, first database created. This contains more than three thousand foundations. aspects, types dimensions these were summarized. Worldwide, concrete gravity most used type for turbines. In Brazil, 43.3% turbines shallow essentially gravity, 56.7% deep mostly continuous flight auger stage research identified significantly different ones other countries. Approximately 70% piles, them embedded sandy soils. Concrete steel materials structures.
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ژورنال
عنوان ژورنال: Revista IBRACON de Estruturas e Materiais
سال: 2022
ISSN: ['1983-4195']
DOI: https://doi.org/10.1590/s1983-41952022000500008