A IMPORTÂNCIA DO USO DE REVESTIMENTO TÉRMICO EM ESTRUTURAS DE AÇO EM SITUAÇÃO DE INCÊNDIO

Abstract

Fire Safety (SCI) is the solution to the rapid growth of increasingly tall and complex steel structures making it difficult to access firefighting. SCI is now a must for a secure steel structure, ensuring safety for building users and heritage preservation. Fire Safety encompasses various fire protection methods and measures. The protection measures are active and passive protection, the active protection being the proper use of fire extinguishers, smoke detectors, alarms, fire hydrants among others in the building and the passive measures the use of partitioning, emergency exits and thermal lining. This paper aims to present thermal coatings, also known as thermal protection materials, available in the market and their costs in structural design. The main function of thermal coatings is to protect steel from hot gases and flames from a fire in the metal frame. For such protection it is necessary that the thermal coating has its own characteristics, such as low thermal conductivity, for effective insulation and tightness, compatible cost to not burden the cost of the work and low specific mass not to overload the steel structure's own weight, dispensing with it. the resizing of the structure. Working according to the main fire steel structure standards ABNT NBR 14323 (2003) - Design of fire resistance structure of building construction elements, and Technical Instruction of the Minas Gerais Military Fire Department - IT 06 (2005) - Structural safety of buildings.