Análise de lajes unidirecionais em situações de incêndio

Abstract

The structural elements that make up a building are subject to temperature variations, whether they occur during the day, or in extreme cases when the building is exposed to a fire. In this case, the elements are exposed to extreme temperatures, and their physical, chemical and mechanical properties are altered, causing instability of the structure, and in more severe cases, collapse. Thus, the present study was carried out with the objective of analyzing the behavior of solid slabs of reinforced concrete, with different boundary conditions and nominal coverings, exposed to high temperatures, simulating a fire. Through the computer program ANSYS WORKBENCH, which uses Finite Element Methods, a total of eight slabs were modeled and analyzed. Based on the results obtained, it can be seen that cover and boundary conditions alter displacement values under fire.