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Fire design of reinforced concrete columns. An alternative to the tabular method presented by the Brazilian standard NBR 15200:2004
| Revista IBRACON de Estruturas e Materiais
Fire design of reinforced concrete columns. An alternative to the tabular method presented by the Brazilian standard NBR 15200:2004
Valdir Pignatta e Silva
Resumo
The Brazilian standard ABNT NBR 15200:2004 - Fire design of concrete structures gives a tabular method to the fire design of concrete columns, which associates the load level and the minimal dimensions of the cross-section and the place of the reinforcement centroid to the required time of fire resistance. This paper presents the theory of those tables and a study as a contribution to a future review of NBR 15200. A structural design more optimized, more correct and economic than the tabular method given by the Brazilian standard can be attained using alternative methods.
