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DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

Determination of heat losses of a window frame to the wall joint when replacing the outdated constructions of window blocks with modern ones

Вестник МГСУ 11/2015
  • Bedov Anatoliy Ivanovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Professor, Department of Reinforced Concrete and Masonry Structures, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Gaysin Askar Miniyarovich - Ufa State Petroleum Technological University (USPTU) Candidate of Technical Sciences, Associate Professor, Department of Building Structures, Ufa State Petroleum Technological University (USPTU), Office 225, 195, Mendeleeva St., Ufa, 450062, Russian Federation.
  • Gabitov Azat Ismagilovich - Ufa State Petroleum Technological University (USPTU) Doctor of Technical Sciences, Professor, Department of Building Structures, Ufa State Petroleum Technological University (USPTU), 195 Mendeleeva str., Ufa, 450062, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Galeev Rinat Grigor’evich - Ufa State Petroleum Technological University (USPTU) Candidate of Technical Sciences, Associate Professor, Department of Highways and Technology of Construction Production, Ufa State Petroleum Technological University (USPTU), 195 Mendeleeva str., Ufa, 450062, Russian Federation.
  • Salov Aleksandr Sergeevich - Ufa State Petroleum Technological University (USPTU) Candidate of Technical Sciences, Associate Professor, Department of Highways and Technology of Construction Production, Ufa State Petroleum Technological University (USPTU), 195 Mendeleeva str., Ufa, 450062, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Shibirkina Marina Sergeevna - Ufa State Petroleum Technological University (USPTU) engineer, Department of Highways and Technology of Construction Production, Ufa State Petroleum Technological University (USPTU), 195 Mendeleeva str., Ufa, 450062, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .

Страницы 46-57

In the Soviet Union a lot of residential buildings with wooden window systems were built. In the last 15 years the requirements to heat protection of buildings have strengthened and the technologies of window systems production have developed. New window constructions appeared, in which window frames of PVC profiles are used. So now double-casement windows with glass are replaced by single-casement with glass units. The replacement of windows is associated with a number of specific problems. The authors analyzed the quantitative parameters of the heat losses in the claddings of brick buildings. It was revealed that significant heat leakage occurs in the joint areas of window frame with the wall, at the junction of slopes. The authors offer a quantitative calculation of heat losses in these units in case of two-dimensional heat flux based on thermal conductivity matrix taking into account the convective heat transfer. On the basis of this calculation a computer program was developed that allows pinpointing the most problematic areas for choosing rational actions for elimination of cold bridges.

DOI: 10.22227/1997-0935.2015.11.46-57

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