Nuianzin O. Improving the efficiency of fire tests for fire resistance of horizontal elements of reinforced concrete structures

This thesis is devoted to solving an important scientific and technical problem of improving the efficiency of fire tests by identifying the dependence between values of fire resistance limit of horizontal reinforced concrete structures and temperature variance on their heating surfaces as a scientific basis for improving the efficiency of results evaluation of such tests. The following results were obtained: For the first time the dependence between values of fire resistance limit of horizontal reinforced concrete structures and temperature variance on their heating surfaces and errors in determining the limit of fire resistance were found out. The author proves that it is possible to get constitutive parameters of horizontal fire test furnace which reduce temperature variance on the heating surface during fire resistive tests on horizontal reinforced concrete structures.Application of computing experiments for designing new and improving the parameters of existing furnaces for fire tests evaluating fire resistance of horizontal elements of reinforced concrete structures received further development.