Role of temperature factor in the work of a cellular reinforced concrete ice-resistant platform

Abstract

The article presents materials reflecting the results of calculations by the finite element method on a computer (according to a special program) of the thermal state of the cellular fragment of the reinforced concrete support block LSP taking into account the influence of seasonal and decadal outdoor temperatures, as well as the effect of changes in the thermal characteristics of the backfill soil on the thermal state of the ice-resistant stationary platform. This made it possible for the first time to evaluate the joint work of a thin reinforced concrete frame and a massive body of backfill soil under temperature effects. In the case of the operation of the cellular structure without the backfill soil, seasonal and ten-day temperature fluctuations create a more unfavourable temperature regime in comparison with the cellular structure with the backfill soil. In the absence of backfill soil, negative temperatures penetrate most deeply into the thickness of the structure. The presented data can also serve as the basis for a preliminary assessment of the thermal state of LSP in the form of a fully cellular reinforced concrete structure and in the future to determine its thermally stressed state. Only considering the combined effect of ice, wave and temperature loads can we really evaluate the operation of such a complex structure in terms of its reliability and safety.