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Monografia
Simulação Computacional De Efeito Degradante Em Ponte De Concreto Protendido E Seus Impactos Sobre A Estrutura
The bridges are among the main Civil Engineering works of art, they are essential for the transport of freight on roads and railways, being responsible for connecting them at critical points, ensuring a trajectory of continuity. In nature there is a tendency to wear down every structure leading t...
Autor principal: | Silva, Horiano Gomes da |
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Grau: | Monografia |
Idioma: | pt_BR |
Publicado em: |
Universidade Federal do Tocantins
2022
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Assuntos: | |
Acesso em linha: |
http://hdl.handle.net/11612/3510 |
Resumo: |
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The bridges are among the main Civil Engineering works of art, they are essential for the
transport of freight on roads and railways, being responsible for connecting them at critical
points, ensuring a trajectory of continuity. In nature there is a tendency to wear down every
structure leading to the appearance of pathological manifestations or problems, which makes it
necessary to use tools to predict these possible problems. Thus, this monograph aims to study the
effects of a localized corrosion in a prestressed concrete stringer through numerical simulations
using the ANSYS Workbench program that internally uses the finite element method. Two
reinforcement approaches for simulation employed in the literature were used, the discrete and
the embedded. 84 simulations were performed, divided into four groups each with twenty-one, as
well as the calculations of the expected result. The groups that used a discrete approach have had
a better result when the mesh quality is low, while the other approach have had more attractive
results with a finer mesh. By observing the results of the simulations and comparing with the
calculated ones, it was understood that they were demonstrating a non-elastic behavior of the
concrete, as expected, the displacements seen were greater than those calculated. When seeing
that the tension in the steel cables did not reach the yield limit and that the main tensions were,
in some cases, above the concrete limit, such reasons lead to believe that the crushing of the
concrete may have occurred and that the element used did not managed to demonstrate such
behavior. Finally, it was concluded that the tool used can be used for the proposed objective and
new works were suggested. |