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Influence of density on bending resistance of wooden beams under fire situation and proposal of a new equation

Perini PV;
Bolina FL

Pedro Verona Perini

Fabrício Longhi Bolina


Resumen

Targeting to identify the correlation between density, charring rate and bending resistance, the different methods presented by Eurocode 5 to verify wooden beams under fire exposure were compared, with the use of the software Abaqus/CAE to obtain the isotherms of the beams in the advanced calculation method, and then proposed a new equation to obtain their charring depth according to time of fire exposure. It was confirmed that the density of the wood is inverse to its charring rate and its bending resistance loss, and the advanced calculation method presents less conservative results than the simplified methods. The equation that was proposed in this study had slightly more conservative results than the advanced calculation, proving to be suitable in relation to time spent in calculation, computational effort and economy.

 

DOI:https://doi.org/10.56238/sevened2024.026-028


Creative Commons License

Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial 4.0.

Derechos de autor 2024 Pedro Verona Perini, Fabrício Longhi Bolina

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  • Pedro Verona Perini
  • Fabrício Longhi Bolina