DYNAMIC MODELING OF THIN-WALLED SLENDER COLUMNS BRACED BY LINTELS IN SYSTEMS Z AND X

A THEORETICAL AND NUMERICAL APPROACH BY THE CONTINUOUS MEDIUM TECHNIQUE

Autores

  • Weslley Imperiano Gomes de Melo Universidade Federal Rural de Pernambuco
  • Pedro Vitor Carvalho de Alencar Luz Unidade Acadêmica do Cabo de Santo Agostinho
  • Normando Perazzo Barbosa Universidade Federal da Paraíba

Palavras-chave:

Thin-walled slender columns, Bracing by lintels in Z and X, Continuous Medium Technique (CMT), Dynamic analysis, Modes of vibration.

Resumo

The thin-walled slender columns are significantly stressed by flexion-torsion, mainly to overcome deep valleys, as is the example of bridge columns, which makes the action of the wind very relevant and, consequently, the analysis of the bracing system. Thus, in resistance to wind action, lintels arranged in Z and X were used. For this purpose, the Continuous Medium Technique (CMT) is used with emphasis on the Wall Panel Theory (WPT). It is worth mentioning that the validation of the theoretical approach via CMT is carried out by numerical simulation in FEM through ANSYS Release 11. With an average accuracy of CMT in the order of 95.85 % for Z lintels, while in X-Bracing, 94.71 % accuracy in the first three modes of vibration.

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Publicado

11-08-2021

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