ESTUDO COMPARATIVO DE ESTRUTURAS DE CONCRETO ARMADO DE MULTIPLOS PAVIMENTOS: dimensionado com e sem situação de incêndio

Abstract

Fire is a fundamental element in the human history since beginnings. These element, discovery thousand of years ago have been doing ally of human on several activities. On the constructions that couldn’t be different, fire is an element which could cause major fires, loss os lives and financial damages. These and another factors motivated the study in this work to compare and evaluate armed concrete bases considering or not burn situation. The armed concrete is a most used type of base in construction industry, thus fire resistance evaluation is very important. Consequently, was created the regulation ABNT NBR 15200:2012, to verify the time of fire resistance in the bases, contributing to prevention and evaluation of possible burns on bases, as comercial as residencial. In the present work the objective is to compare two processes, analyzing the influence of fire consideration in reinforced concrete structures, checking the impact on material consumption in the conventional procedure. With the development of the work, the complexity of the fire is remarkable and its impact on the structure has relevance in consumption and in the final cost, but in relation to safety and cost benefit, the consideration of the fire is very valid in reinforced concrete buildings , among the analyzed results it was possible to identify very restrictive parameters of the norm and of the verification methods of the structural elements.