RESEARCH OF A RIBBED REINFORCED CONCRETE COATING PANEL UNDER THE CONDITIONS OF THE STANDARD FIRE TEMPERATURE REGIME

Abstract

The work includes an analysis of the latest research and publications related to the calculation of the fire resistance assessment of reinforced concrete ribbed panels. The issue of determining the temperature distribution of these structures under the conditions of exposure to high temperatures from a fire is highlighted.

With the help of the software complex, a geometric model of a reinforced concrete ribbed covering panel was created. A finite-element mesh was constructed using finite elements, which allows solving the nonlinear problem of temperature distribution under the influence of the standard fire temperature regime. Simulated thermal mathematical models for determining the temperature distribution in the reinforced concrete ribbed panel of the coating under the influence of fire, not taking into account the stress-deformed state of the structures. According to the results of the computational experiments, temperature curves were constructed to determine the temperature distribution on the ribbed reinforced concrete panel under the condition of exposure to the standard fire temperature regime for 30 min, 45 min, 60 min.