RESEARCH OF REFINED CONCRETE WALL HEATING UNEVENNESS DURING FIRE RESISTANCE TEST

In this article the heat engineering problem is solved concerning the determination of the unevenness of the temperature distribution in the inner layers of the reinforced concrete wall during tests on fire resistance in special fire units. During work, computational experiments using CFD programs and the finite element method were used. To study the influence of temperature dispersion on the surface of bearing walls on their fire resistance limit at the limiting state of loss of bearing capacity, a reinforced concrete wall with known parameters was considered. The temperature of the fire was modeled in accordance with the standard temperature regime of the fire.