Banca de DEFESA: DIEGO LIMA DANTAS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : DIEGO LIMA DANTAS
DATE: 29/11/2021
TIME: 14:00
LOCAL: meet.google.com/wtx-uqmy-gds
TITLE:

NON-LINEAR ANALYSIS OF REINFORCED CONCRETE PILE CAPS AS A FOUNDATION OF ONSHORE AIR GENERATOR CONSIDERING THE LATERAL FRICTION BETWEEN PILES AND THE SOIL

KEY WORDS:

Keywords: Structural Analysis, Wind Turbine Foundation, Numerical Modeling, FEM

PAGES: 135
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Estruturas
SPECIALTY: Estruturas de Concreto
SUMMARY:

In the search for alternative sources to meet the growing demand for energy, wind production has been highlighted due to the great potential for its use in Brazil. Given the magnitude of the foundations of wind turbines, understanding their structural behavior is essential for designing optimized solutions that reduce costs and facilitate the implementation of this technology on a large scale. From this perspective, this research seeks to deepen the studies on the structural behavior of foundations for onshore wind turbines, represented by reinforced concrete pile caps. Computational models were developed using the Finite Element Method (FEM) with the aid of the Ansys Workbench R20 software, considering the contribution of the lateral friction of the pile shaft in the conduction of loads to the ground, using non-linear numerical modeling. The reinforcements of a wind tower foundation were designed and two different mesh organizations were proposed: circular (CR) and orthogonal (OR). It was observed that the reinforced blocks, although classified as flexible foundations due to their geometry, presented a behavior similar to that of rigid blocks, with a tendency to linearize the reactions and vertical displacements. The results showed that the distribution of reinforcement in orthogonal mesh provided smaller vertical displacements for the blocks. In the different types of soils considered, the vertical displacements of the OR models were, on average, 10.74% lower than those of the CR models. On the other hand, the consumption of steel, in kilograms, was considerably lower in the CR models. The amount of steel used in the reinforcement of the CR models was 30.97% smaller than in relation to the OR models.

BANKING MEMBERS:
Presidente - 2087565 - RODRIGO BARROS
Interno - 1451817 - JOEL ARAUJO DO NASCIMENTO NETO
Interno - 1515200 - JOSE NERES DA SILVA FILHO
Externo à Instituição - RODRIGO GUSTAVO DELALIBERA - UFU