Análise dinâmica de pontes: estudo comparativo entre cargas móveis rodoviárias e ferroviárias com o uso do software ANSYS
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A atuação de fatores dinâmicos nas estruturas nos leva a uma preocupação com vibrações e respostas estruturais geradas sob essas novas solicitações, pois elas podem gerar desconforto aos usuários e até mesmo causar o colapso da estrutura. Atualmente a análise dinâmica já passa a ser indispensável para o cálculo de grandes estruturas como pontes de concreto armado. Este trabalho apresenta uma comparação gerada com o software ANSYS a cerca das deformações sofridas por um modelo de ponte submetido a
carregamentos rodoviários ou ferroviários. Como resultados, notaram-se deformações similares, porém vibrações muito mais intensas no modal ferroviário
This present paper has as objective study the modes and frequencies of bridges' structures caused by dynamic vibrations analyzing different live loads, considering highway and rail road loads. There will be analyzed acceptance, comfort and safety criteria, and there will be demonstrated the design and discretizations of the structure with the finite elements method in the software ANSYS. There was described and analyzed comparatively the most significant modes and frequencies caused by vibrations in both models generated in the software. This paper shows a comparison between the deformation in a bridge model under traffic loads and railroad loads. As results, the deformations were similar, but the vibrations were much more intense with the railroad load
This present paper has as objective study the modes and frequencies of bridges' structures caused by dynamic vibrations analyzing different live loads, considering highway and rail road loads. There will be analyzed acceptance, comfort and safety criteria, and there will be demonstrated the design and discretizations of the structure with the finite elements method in the software ANSYS. There was described and analyzed comparatively the most significant modes and frequencies caused by vibrations in both models generated in the software. This paper shows a comparison between the deformation in a bridge model under traffic loads and railroad loads. As results, the deformations were similar, but the vibrations were much more intense with the railroad load
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MACEDO, T. A; LOMBARDI, D. B.; DUTRA, R. D. F. Análise dinâmica de pontes: estudo comparativo entre cargas móveis rodoviárias e ferroviárias com o uso do software ANSYS. In: CONGRESSO BRASILEIRO DE CONCRETO, 58., 2016, Belo Horizonte. Anais... Belo Horizonte, 2016