Substantiation of the Method for Studying the Behavior of Enclosing Structures with Glazing Under Conditions of Fire Thermal Influence

Abstract

The work is devoted to the actual scientific and technical task of researching the behavior of enclosing structures with glazing under the conditions of the thermal influence of fire. For this, a method is proposed, the essence of which is to create a standard fire temperature regime on model samples of glass elements of enclosing building structures using an experimental installation based on a fire furnace, the fuel system of which ensures the creation of a standard fire temperature regime. With the help of measuring and recording equipment, the temperature indicators in the space of the furnace and in the samples are fixed, as well as the onset of the limit states of loss of integrity and heat-insulating capacity. The purpose of these studies is to experimentally determine the patterns of changes in the parameters of thermal processes and the stress-strain state in glass elements of enclosing building structures under the conditions of thermal influence of the standard fire temperature regime as a scientific basis for the development of standardized calculation methods for assessing their fire resistance. The tasks of the research are checking and obtaining additional data on the thermophysical properties of glass and other additional materials and substances that can be used in the enclosing building structure, checking and obtaining additional data on heat exchange in the air cavities between the glazing, checking mathematical models of the stress-strain state of the glass elements of the enclosing structures under the conditions of thermal exposure of the standard fire temperature regime. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.