Evaluation of the effectiveness of additional thermal insulation of the basement floor of frame-monolithic buildings in extreme operating conditions

Terentii Kornilov,Petr Fedotov,Aleksandr Nikiforov,P Akimov,N Vatin,A Tusnin,A Doroshenko

doi:10.1051/e3sconf/202126304041

Terentii Kornilov, Petr Fedotov + Show 5 more

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https://doi.org/10.1051/e3sconf/202126304041

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Abstract

The issues of saving energy resources are of particular relevance for the regions of Russia with an extremely cold climate. The increased air pressure difference in winter and the presence of volumetric cold bridges in the form of pile and column grillages, basement slabs and concrete block masonry often leads to a violation of the temperature regime of the first floors of multi-storey buildings with a monolithic reinforced concrete frame. Thermal analysis of fragments of basement floors in areas with columns and grillages with additional thermal insulation from the outside was carried out. The low efficiency of the external thermal insulation of the basement elements of the operated frame-monolithic buildings is shown.

Highlights

The main global trend in construction is to improve the energy efficiency of buildings and reduce energy consumption for their operation
As a result of the implementation of state program measures to improve the energy efficiency of the housing sector, Russia has significantly improved its position in the ranking among countries for the implementation of energy efficiency policies [2]
For the Republic of Sakha (Yakutia), the issues of saving energy resources are of particular relevance, since, according to climatic conditions, Yakutia is the coldest vast territory in the world, where there is a negative average annual temperature

Summary

Introduction

The main global trend in construction is to improve the energy efficiency of buildings and reduce energy consumption for their operation. Losses of thermal energy through external enclosing structures are the main ones and account for more than 50% in the structure of thermal energy consumption of a building for heating during the heating period [3]. In this regard, in the regulatory documents on thermal protection of European countries and Russia, the normalized values of the reduced resistance to heat transfer of enclosing structures have been significantly increased [4,5]. In the Russian system for standardizing the thermal protection of buildings, the increase in requirements for the energy efficiency of buildings is carried out by increasing the required values of the reduced resistance to heat transfer of enclosing structures, and by standardizing the specific thermal characteristics of a building [4]

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