bachelorThesis
Análise do comportamento estrutural de uma ponte ferroviária de concreto armado submetida a esforços de natureza dinâmica
Fecha
2015-02-25Registro en:
ALBUQUERQUE, Filippi Seuanes Cavalcanti de; KRAMAR, Wagner Felipe. Análise do comportamento estrutural de uma ponte ferroviária de concreto armado submetida a esforços de natureza dinâmica. 2015. 92 f. Trabalho de Conclusão de Curso (Graduação) – Universidade Tecnológica Federal do Paraná, Curitiba, 2015.
Autor
Albuquerque, Filippi Seuanes Cavalcanti de
Kramar, Wagner Felipe
Resumen
This work dynamically analyzes the structural behavior of a railway bridge will short reinforced concrete composed of two "I" section beams parallel and bi supported, from the stresses and strains to which it is subject due to the load of a railway vehicle, using for this the rail vehicle and the computational routine implemented by Beghetto (2006).The beams that make up the structure have been subdivided into twenty finite element Euler-Bernoulli beam and the amplitude of irregularities of the rails were taken with a value of 2.5mm.The problem was analyzed for a speed range of the railway vehicle 1 to 100km/h.After that, we compare the results with the dynamic analysis with the values of a pseudo-static analysis increased by the dynamic impact coefficient of NBR 7187 (ABNT, 2003).In this comparison, it appears that the values found for the dynamic analysis outweigh the pseudo-static analysis of values when the vehicle moves on the bridge at nearly the speed resonant condition. On the other hand, when the resonant speeds far condition, the coefficient of impact prescribed by NBR 7187 (ABNT, 2003) meets expectations.