Análise estrutural em edificação híbrida com proteção contra incêndio em elementos de aço

• Autor(a) principal: Barreto, Estefane Bispo
• Data de Publicação: 2022
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UFS
• Texto Completo: http://ri.ufs.br/jspui/handle/riufs/17152
• topic: Engenharia Civil; Ensino de engenharia civil; Estruturas hibridas; Fogo; Sistemas de proteção contra incêndio; Tempo Requerido de Resistência ao Fogo (TRRF); Hibrid structures; Fire; Fire protection systems; ENGENHARIAS::ENGENHARIA CIVIL::ESTRUTURAS

With the advancement of technologies, civil construction has added new dimensioning methods to its area, enabling predictions, from the incompatibility of projects to even the simulation of fires in the building, analyzing its behavior, in such a situation. Along with the usual dimensions, ABNT also added fire resistance standards as mandatory in buildings, meeting all the minimum requirements listed by NBR14323:2013 and NBR 14432:2001, due to the increase in fire occurrences across the country. With this, the present work had, as objective, linear elastic analysis of the structural behavior of a Church, built in mixed structure, under fire situation simulated by the Robot software, in order to analyze, also its behavior adding a material of thermal protection , in its structural elements. The material chosen for thermal protection in the case study was the mortar designed Blaze Shield II, in view of its low cost and easy handling, compared to other protection materials on the market. In the comparison, it was possible to see that the mortar is able to thermally insulate the profiles considerably, reducing the temperature that reaches the profile by about 90% of the temperature of the hot gases in the compartment in fire. Thus, it was concluded that the building without fire protection material does not meet the TRRF required by the standard, since its elements would lose flow resistance in the first 5 minutes after the fire started. Therefore, an adaptation would be necessary for the studied building to offer greater security for its users.