https://repositorio.ufu.br/handle/123456789/5144 2026-04-23T03:49:13Z https://repositorio.ufu.br/handle/123456789/48577 Title: Fluxo auxiliar para tomada de decisão em projetos de fundações em solos colapsíveis 2026-02-23T00:00:00Z https://repositorio.ufu.br/handle/123456789/48564 Title: Memorial descritivo 2026-03-17T00:00:00Z https://repositorio.ufu.br/handle/123456789/48449 Title: Análise experimental de blocos sobre duas estacas metálicas com armadura metálica e não-metálica de barras de polímeros reforçada com fibra de vidro (GFRP) Abstract: Pile caps are fundamental structural elements in deep foundation systems, responsible for transferring loads from the superstructure to the piles. Due to their typical exposure to aggressive environments, such as high moisture conditions, these elements are prone to deterioration associated with steel reinforcement corrosion, which motivates the investigation of more durable reinforcement alternatives. In this context, this study experimentally evaluated the structural behavior of rigid pile caps supported by two steel piles, designed according to the strut-and-tie method, comparing models reinforced with CA-50 steel bars and glass fiber-reinforced polymer (GFRP) bars. All models were designed with identical geometry, loading conditions, and concrete strength, varying only the type and distribution of the main tensile reinforcement. The experimental program included material characterization tests, load tests up to failure, and detailed instrumentation to monitor strains, displacements, crack development, and load distribution at the supports. The results showed that steel-reinforced pile caps exhibited behavior consistent with rigid block assumptions, presenting lower deformations and better crack control. Conversely, GFRP-reinforced pile caps showed larger deformations and crack widths, indicating a more flexible structural response, even when designed using the same criteria. It was also observed that distributing the GFRP reinforcement along the entire length of the tie resulted in improved structural performance compared to concentrating the reinforcement only in the anchorage region. The study concludes that the use of GFRP bars in pile caps is structurally feasible in terms of ultimate strength; however, additional design criteria related to deformation and crack control are required. 2026-02-06T00:00:00Z https://repositorio.ufu.br/handle/123456789/48109 Title: Desempenho mecânico de treliças de madeira em coberturas: análise howe, pratt e belga Abstract: This study aims to analyze the structural performance of three wooden truss typologies Howe, Pratt, and Belg ianapplied to the roof of an industrial shed, through structural design and computational simulations. The analyses followed the criteria established by ABNT standards NBR 7190:2022, NBR 6120:2019, and NBR 8681:2004, with verification of the ultimate (ULS) and serviceability (SLS) limit states. The study compared the original configurations and evaluated the influence of variations in cross-sections, wood strength class, and geometric modifications of the trusses. The results showed that the original Howe truss presented the most balanced and stable performance, while reductions in stiffness and geometric simplifications made the compressed elements of the Pratt and Belgian trusses more susceptible to instability. The use of Ftool and VisualVentos software proved essential for accurately determining internal forces and displacements, allowing a consistent assessment of the proposed structural scenarios. It is concluded that proper structural design, combined with computational tools, supports safer engineering decisions, with the Howe truss standing out as the most efficient configuration among those analyzed. 2025-12-18T00:00:00Z