Brasilia National Stadium: A Dynamic Finite Element Analysis

Autores

  • SUZANA MOREIRA AVILA Universidade de Brasília
  • Gustavo Valença Fiuza Lima Universidade de Brasília
  • Leonardo José Guimarães Rabelo Universidade de Brasília
  • Graciela Doz

Palavras-chave:

structural dynamics; human induced vibration; finite element analysis; structural control; stadium structures

Resumo

Recently due to development of new materials and computational tools it has been noticed an increasing occurrence of excessive vibration on civil structures. Many of the brazilian soccer arenas presented problems of excessive vibration, needing monitoring and even intervention. For the World Cup held in Brazil (2014), many of these stadiums have undergone structural changes and some were demolished for the construction of new arenas. It is important to conduct a careful analysis in the dynamic design of these structures. This work deals with a numerical dynamic analysis of the Brasilia National Stadium analyzing different scenarios considering dynamic loads developed by human activities in grandstands, such as jumping and bobbing. The dynamic responses of the stadium are compared to limit ranges suggested by an international standard. Some of the results exceed code limits established. A structural control system, using tuned mass dampers is proposed to reduce the dynamic response.

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Referências

CEB. “Vibration Problems in Structures. Practical Guidelines”. Bulletin d’Information N 209.Comité European du Béton, Switzerland, 1991.

FAISCA R. G. “Caracterização de Cargas Dinâmicas geradas por Atividades Humanas”. Doctor’s degree Thesis. Universidade Federal do Rio de Janeiro, Brazil, 2003.

LIMA, G. V. F., Análise Dinâmica via Método dos Elementos Finitos do Estádio Nacional de Brasília. Master’s degree Thesis. University of Brasilia, Brazil, 2013.

SAAED T.E. et al. A state-of-the-art review of structural control systems. Journal of Vibration and Control. Volume 21, número, páginas 919-937, 2015.

SIM J. H. H., Human-Structure Interaction in Cantilever Grandstands. Doctor’s degree Thesis. University of Oxford, England, 2006. .

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Publicado

2023-03-30