Abstract
The main reason of the violation of the thermal regime of buildings from lightweight steel-framed constructions (LSFC) are established. Considering the low efficiency of the additional thermal insulation of the outer envelopments it is proposed to construct a cold under-floor space with heat-insulated fences. Such constructive approach reduces the influence of air infiltration in the winter period and thereby improves the thermal regime of low-rise frame buildings. A mathematical model of the thermal interaction of the buildings with permafrost soils has been developed considering the climate, thermophysical parameters of the foundation soils, the size and configuration of buildings, and the thermal characteristics of the external fencing. The results of numerical calculations of soils thawing depth and under-floor air temperature are given when enveloping them with heat insulated panels. The most optimal parameters of the outer panels of the vented under-floor space are proposed for the preservation of the soils of buildings in the frozen state during exploitation.
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More From: IOP Conference Series: Materials Science and Engineering
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