VERIFICAÇÃO DE GALPÃO EM ESTRUTURA METÁLICA EM SITUAÇÃO DE INCÊNDIO: comparativo entre medidas de proteção passiva

Abstract

The subject of this work is the verification of a shed in metallic structure in a fire situation. In this verification, four passive protection methods will be described, being: intumescent paint, gypsum plaster, projected mortar and concrete with unique thermal insulation function. In addition, a mixed steel and concrete pillar, which has the concrete not only as a thermal coating material, but also as a structural part that resists a portion of the requesting efforts, will also be dimensioned and analyzed. Finally, the advantages and disadvantages of each protection method will be compared, in addition to a cost estimate. For this, a hypothetical case study of an industrial shed was carried out. The importance of the study was because fire was always present in people's daily lives and their dominance was crucial to the development of society. However, the occurrence of this phenomenon without proper control can generate a number of damages to structures and people. Therefore, it is necessary to carry out analyzes that certify the structural elements, such as pillars and beams, subjected to high temperatures, so that they do not lose their structural capacity and, if this happens, they allow as much time as possible in order to the escape of users. The methods used to reach the comparative criteria were taken from academic materials, construction manuals and Brazilian norms. In summary, it was concluded that the development of the analysis of structures in a fire situation is of paramount importance, since the absence of this can lead to disastrous damages for civilians. Moreover, in relation to the comparative of the protection measures, one of the studied materials showed, in view of the problem situation, extremely viable in comparison with the others.