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RUSSIAN JOURNAL
OF BUILDING CONSTRUCTION
AND ARCHITECTURE
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ISSN 2542-0526
RUSSIAN JOURNAL
OF BUILDING CONSTRUCTION
AND ARCHITECTURE
N 4 (52)
BUILDING STRUCTURES, BUILDINGS AND CONSTRUCTIONS
BASES AND FOUNDATIONS, UNDERGROUND STRUCTURES
HEAT AND GAS SUPPLY, VENTILATION, AIR CONDITIONING, GAS SUPPLY AND ILLUMINATION
BUILDING MATERIALS AND PRODUCTS
TECHNOLOGY AND ORGANIZATION OF CONSTRUCTION
DESIGNING AND CONSTRUCTION OF ROADS, SUBWAYS, AIRFIELDS, BRIDGES AND TRANSPORT TUNNELS
BUILDING MECHANICS
THEORY AND HISTORY OF ARCHITECTURE, RESTORATION AND RECONSTRUCTION OF HISTORICAL
AND ARCHITECTURAL HERITAGE
ARCHITECTURE OF BUILDINGS AND STRUCTURES. CREATIVE CONCEPTIONS OF ARCHITECTURAL ACTIVITY
CITY PLANNING, PLANNING OF VILLAGE SETTLEMENTS
Voronezh 2021
Russian Journal
of Building Construction and Architecture
Periodical scientific edition
Published since 2009 |
Comes out 4 times per annum |
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Founder and publisher: Voronezh State Technical University.
The territoryof distribution — Russian Federation.
The articles are reviewed and processed with the program ANTIPLAGIARISM. This publication cannot be reprinted without the prior permission of the publisher, references are obligatory.
Previous name: «Scientific Herald of the Voronezh State University of Architecture and Civil Engineering. Construction and Architecture».
EDITORIAL BOARD
Editor-in-Chief: Melkumov V. N., D. Sc. in Engineering, Prof.,
Voronezh State Technical University
Boldyrev А.М., Corresponding Member of the Russian Academy of Architecture and Engineering Science, D.Sc. in Engineering, Prof., Voronezh State Technical University, Russia
Bondarev B. А., D. Sc. in Engineering, Prof., Lipetsk State Technical University, Russia
Gagarin V. G., Corresponding Member of RAABS, Moscow State University ofCivil Engineering, Russia
Gelfond А. L., Corresponding Member of the Russian Academy of Architecture and Construction Science, D. Sc. in Architecture, Nizhniy Novgorod State University of Architecture and Construction, Russia
Enin A. Ye., PhD in Architecture, Prof., Voronezh State Technical University, Russia
Karpenko N. I., Academician of RAABS, Research Institute of Building Physics(NIISF RAABS), Russia
Kirsanov М.N., D.Sc. in Physics and Mathematics, Professor (National Research University “Moscow Power Engineering Institute”)
Kolchunov V. I., Academician of RAABS, Southwest State University, Kursk, Russia
Ledenyev V. I., D. Sc. in Engineering, Prof., Tambov State Technical University, Russia
Lyahovich L. S., Academician of RAABS, Tomsk State University of Architecture and Building, Russia
Mailyan L. R., D. Sc. in Engineering, Prof., Don State Technical University, Rostov, Russia
Osipova N.N., D. Sc. in Engineering, Yury Gagarin Saratov State Technical University, Russia
Panibratov Yu. P., Academician of RAABS, Saint Petersburg State University of Architecture and Civil Engineering, Russia
Podolsky Vl.P., D. Sc. in Engineering, Prof., Voronezh State Technical University, Russia (Dep. of the Editor-in-Chief)
Suleymanov А.М.,D. Sc. in Engineering, Prof., Kazan State University of Architecture and Engineering, Russia
Fyedorov V. S., Academician of RAABS, Moscow State University of Railway Engineering, Russia
Fedosov S. V., Academician of RAABS, Moscow State University ofCivil Engineering, Russia
Shubenkov М. V., Academician of the Russian Academy of Architecture and Construction Science, D. Sc. in Architecture, Prof., МоscowInstitute of Architecture (State Academy), Russia Asanowicz Alexander, Prof., Dr. of Sn., Technical University of Bialystok, Poland
Figovsky Oleg L., Prof., Dr. of Sn., Member of EAS, Israel Korsun V. I., D. Sc. in Engineering, Prof., The Donbas National Academy ofCivil Engineering and Architecture, Ukraine
Nguyen Van Thinh, Prof., Dr. of Sn., Hanoi University of Architecture, Vietnam
Editor: Kotlyarova E. S. Translator: Litvinova O. A. Executive secretary: Aralov E. S.
Publication date 15.11.2021. Format 60×84 1/8. Conventional printed sheets 15,3. Circulation 500 copies. Order 197. Number of the certificate of registration of the media ПИ № ФС 77-67855
Issued bythe Federal Service for Supervision of Communications, Information Technology, and MassMedia (Roskomnadzor)
Priceissubject to change
THE ADDRESS of EDITORIAL AND THE PUBLISHER OFFICE:
room2230,84 20-letiya Oktyabrya str., Voronezh, 394006, Russian Federation Tel./fax: (473)2-774-006; e-mail: vestnik_vgasu@mail.ru
Published in Printing Office of Voronezh State Technical University 84 20-letiya Oktyabrya str., Voronezh, 394006, Russian Federation
© Voronezh State Technical University, 2021
Issue № 4 (52), 2021 |
ISSN 2542-0526 |
CONTENTS |
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BUILDING STRUCTURES, BUILDINGS AND CONSTRUCTIONS................................................... |
7 |
Umnyakova N. P. |
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Engineering Method for Calculating the Temperature on the Inner Surface |
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of the Outer Corner of a Building ........................................................................................... |
7 |
Fedorova N. V., Vu Ngoc Tuyen , Medyankin M. D. |
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Analysis of Nonlinear Static-Dynamic Deformation |
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of Reinforced Concrete Frames in Out-of-Limit States......................................................... |
20 |
HEAT AND GAS SUPPLY, VENTILATION, |
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AIR CONDITIONING, GAS SUPPLY AND ILLUMINATION........................................................ |
36 |
Chuikina A. A., Panov M. Ya., Kuznetsov S. N. |
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Development of a Methodology for Determining the Best Option |
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for the Routeof the Heat Network at the Initial Design Stage............................................... |
36 |
BUILDING MATERIALS AND PRODUCTS................................................................................ |
44 |
Bobrova E. Yu., Popov I. I., Gandzhuntscev M. I., Zhukov A. D. |
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Thermosetting Binder for Fibrous Insulating Materials......................................................... |
44 |
Popov I., Levchenko A. |
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Experimental Investigation of Internal Friction |
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in Rubber Concrete and Fiber-Reinforced Rubber Concrete.................................................. |
53 |
Selyaev V. P., Nizin D. R., Kanaeva N. S. |
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Quantitative Assessment of the Kinetics |
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of Damage Accumulation in the Polymer Matrix |
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Structure Under Full-Scale Climatic Factors and Tensile Loads............................................ |
63 |
Slavcheva G. S., Britvina E. A., Shvedova M. A. |
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Fresh Properties and Mix Design for 3D-Printable Decorative Concrete............................... |
72 |
5
Russian Journal of Building Construction and Architecture
Chandrasekaran Vijayvenkatesh, Rajupalem Rahul Reddy |
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Behaviour of Ternary Blended Cement Concrete Slab |
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with Steel Fiber under Impact Loading................................................................................. |
82 |
TECHNOLOGY AND ORGANIZATION OF CONSTRUCTION...................................................... |
95 |
Mishchenko А. V., Gorbaneva E. P., Preobrazhensky M. A. |
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Reduction of the Bim Dimension |
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of the Full Life Cycle of Building and Facilities................................................................... |
95 |
BUILDING MECHANICS ...................................................................................................... |
106 |
Kozlov A. V., Safronov V. S. |
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Numerical Simulation of Aerodynamic Stability |
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of Long-Span Bridges......................................................................................................... |
106 |
CITY PLANNING, PLANNING OF VILLAGE SETTLEMENTS .................................................. |
115 |
Ilyichev V. А., Kolchunov V. I., Bakaeva N. V., Kormina A. A. |
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Urban Environment Design: New Methodological Approaches |
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Based on the Biosphere Compatibility Paradigm (Part 2).................................................... |
115 |
INSTRUCTIONS TO AUTHORS.............................................................................................. |
131 |
6
Issue № 4 (52), 2021 |
ISSN 2542-0526 |
BUILDING STRUCTURES,
BUILDINGS AND CONSTRUCTIONS
DOI10.36622/VSTU.2021.52.4.001
UDC 699.86
N. P. Umnyakova1
ENGINEERING METHOD FOR CALCULATING THE TEMPERATURE
ON THE INNER SURFACE OF THE OUTER CORNER OF A BUILDING *
Research Institute of Building Physics of the Russian Academy of Architecture and Building Sciences 1
Russia, Moscow
1 D. Sc. in Engineering, Assoc. Prof., Deputy Director, e-mail: n.umniakova@mail.ru
Statement of the problem. The temperature on the inner surface of the outer corner is always lower than on the inner surface of the outer wall. This temperature difference might lead to the formation of condensation on the inner surface of the wall at low outdoor temperatures. Therefore the problem of developing an engineering method for calculating the temperature in the outer corner to exclude the possibility of condensation on the inner surface in the design process of the outer wall structures is extremelyrelevant.
Results. To address this problem, based on solving the heat balance equation, taking into account the amplitude of air temperature fluctuations in the room and heat absorption of the inner surfaces of walls, intermediate bottoms (ceiling and floor surfaces), parting walls, a formula was obtained to calculate the temperature on the inner surface of the outer corner. Also, during the study, natural tests of the wall structure with an outer corner were carried out and the temperatures on the inner and outer surfaces were obtained.
Conclusions. Comparison of the calculation results using the developed engineering calculation method and experimental data showed that the temperatures on the inner surface of the outer corner almost coincided. This makes it possible to use the suggested engineering method for calculating the temperature on the inner surface of the outer wall corner in the design of enclosing structures to exclude the appearance of condensation.
Keywords: corner, inner surface, outer wall, temperature, heat transfer coefficient.
Introduction. The outer corner in wall structures always has a lower temperature on the inner surface than on the smooth surface of the wall [1, 4, 9, 13, 14, 16, 17]. This phenomenon is due to the geometric shape of the outer corner, i.e., the cooling area of the outer surface is much larger than the inner surface that receives heat. Therefore, the nature of the distribution of temperatures in the thickness of the wall differs from their distribution in the area of the outer corner: the temperatures on the smooth surface of the wallτв are much higher than in the
© Umnyakova N. P., 2021
*A part of the experimental studies has been carried out using the facilities of the Collective Research Center named after Professor Yu.M. Borisov, Voronezh State Technical University, which is partly supported by the Ministryof Science and Education of the Russian Federation, Contract No 075-15-2021-662.
7
Russian Journal of Building Construction and Architecture
corner intcor . Such a decrease in temperature on the inner surface of the corner at low winter outdoor temperatures can be below the dew point and contribute to the formation of condensation. Therefore, taking into account the thermophysical features in determining the temperature intcor is an important thermophysical problem.
The problem of determining the temperature on the inner surface of the corner was studied by both Russian and foreign scientists. In [13], a number of heat engineering calculations were carried out to determine the amount of heat Qext lost by the outer surface of the inner corner. For this calculation, this formula is proposed
Qext 0,72 k( int ext ), |
(1) |
where δ – wall thickness, m; k – heat transfer coefficient, W/m2 0C; τint, τext – temperatures of the inner and outer surfaces along the smooth surface of the wall, 0С.
However, the determination of the temperature on the inner surface of the corner face is not considered in the work. Carried out by K. F. Fokin [17] numerical calculations of the temperature difference τint – intcor depending on thethermal resistance ofthe outer walls made it possible to obtain graphs of the decrease in the temperature of the inner surface of the outer corner in comparison with the temperature along the smooth surface of the wall. In this case, it is taken into account that the heat transfer coefficient in the outer corner intcor , in comparison with the
smooth surface ofthe wall, αв, can decreaseto a value of intcor = 5.8 W/m2 0С. Then the temperature is found along the surface of the wall τв and according to the graph of the values of τint – intcor and thetemperature ontheedgeofthe inner corner intcor is determined.
In [16], the determination of the temperature on the inner surface of the outer corner is approximately represented by the formula (2)
cor t |
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tint |
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int |
int |
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int |
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int |
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where Λ – heat transfer coefficient, W/m2 0C; αint – heat transfer coefficient of the inner surface of the wall, W/ m2 0C. However, it is not clear on what basis a coefficient equal to 3 was introduced into formula (2).
V. N. Bogoslovsky [1] when determining the amount of heat through the inner surface of the outer corner, he considers that heat loss through 1 m of the outer corner of a uniform fence with a width of 2 calibers (2λR0) taking into account the form factor is
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Issue № 4 (52), 2021 |
ISSN 2542-0526 |
Q |
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(t |
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t |
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cor |
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where is the form factor fcor = 0.68.
Additional heat loss is recommended to be determined through the angle of a homogeneous wall using the formula
Qcor 2 (tint text ) (fcor 1). (4)
With regard to the change in excess temperature on the inner surface along the smoothsurface of the wall and along the axis ofthe angle ofa uniform fence, depending onRint/R0 the graph is con-
structed according to the data [17]. In this case, it is assumed that αint = 8.7 W/m2 0C and
intcor =5.8 W/m2 0C. The issuesofassessing the influence ofthermal engineering inhomogeneities
on the heat-shielding qualities of fences are discussed in [6––12, 20, 22], in which, based on the calculation of temperature fields, it is proposed to take into account their effect on the reduced resistance to heat transfer and heat losses of the building envelope, including external corners. Taking into account the urgency of the problem for determining the temperature on the inner surface of the corner, numerical modeling was carried out with the construction of temperature fields in the zone of the outer corners of buildings. However, when carrying out numerical modeling and corresponding calculations in [19, 23, 24], the heat transfer coefficient of the inner surface of the corner is the same as for the smooth surface of the wall, which increases the calculation error. Studies on the nature of the temperature distribution of the inner surface of the wall at different distances from the corner on the basis of numerical modeling and the determination of the dew point are given in [21]. Moreover, most of the works [5, 6–– 12, 14, 19, 20, 23, 24] consider stationary conditions without taking into account changes in the temperature of the indoor air in the room.
For the stationary mode in works [2, 3], a relationship for calculating the temperature and approximation formulae for determining the temperature in the corner of the outer wall are proposed. A number of works are devoted to the study of the influence of the shape of the outer corner on the temperature on its inner surface and heat losses [14, 19]
In [14], the calculation of the temperature fields in the zone of the outer corners of various geometric shapes with a step of 15 °C was carried out, and the value of x was proposed to determine thetemperatureofthe inner surfaceofthecorner, depending on itsgeometry, in the formula(5)
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cor |
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int |
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tint text |
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(5) |
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intR0 х |
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