2018

№ 2 (february) 2018

ARCHITECTURE OF BUILDINGS AND STRUCTURES. TOWN PLANNING
NOPRIZ Professional Competition for the Best Project of 2017
Mikhail M. POSOKHIN, е-mail: info@nopriz.ru
The National Association of Prospectors and Designers, ul. Novyy Arbat, 21, Moscow 119019, Russian Federation
Multifunctional Complex "Oruzheyny"
"Breath": All the Advantages of Respectable Life
BUILDING STRUCTURES, BUILDINGS AND FACILITIES
Regulation in Large-Panel Housing Construction: the New Set of Rules on Design of Large-Panel Structural Systems
UDC 69.057.12-413:624.012.4(083.75)
Sergey A. ZENIN, e-mail: lab01@mail.ru
Ravil S. SHARIPOV, e-mail: lab01@mail.ru
Oleg V. KUDINOV, e-mail: lab01@mail.ru
JSC Research of Construction, NIIZHB named after A. A. Gvozdev, 2-ya Institutskaya ul., 6, Moscow 109428, Russian Federation
Gennady I. SHAPIRO, e-mail: g-shapiro@mail.ru
JSC MNIITEP, Petrovka ul., 15, str. 1, Moscow 107031, Russian Federation
Abstract. The appearance of new technologies of erection of large-panel buildings and increased requirements for designing such objects necessitated an amendment to the current regulatory base in the field of design of reinforced concrete structures of buildings and facilities and development of a new document concerning the design of structural systems of large-panel buildings. The basic provisions of the Code of Rules "Large-panel structural systems. Rules of design" developed by NIIZHB named after A.A. Gvozdev at participation of TSNIISK named after V.A. Kucherenko, JSC MNIITEP, and JSC "TSNIIEPzhilishcha" are considered. The Code consists of seven sections and eight applications containing the general and detailed requirements for design of structural systems of large-panel buildings, and also their basic elements (walls, plates, foundations), their joints and communications. Requirements of the Code of Rules cover large-panel buildings made of precast reinforced concrete elements of 75 m height not more. The introduction of these norms in the general system of normative documents in the field of designing reinforced concrete structures makes it possible for designers to take reliable and substantiated structural decisions.
Key words: constructive system, large-panel building, reinforced concrete, panel, plate, joint.
REFERENCES
1. GOST 2850-95. Leaflet. Technical conditions.
2. GOST 4598-86.The fibreboard. Technical conditions.
3. GOST 7473-2010. Concrete mixtures. Technical conditions.
4. GOST 8829-94. Equipment: concrete and reinforced concrete prefabrication. Test methods the loading. Rules for the evaluation of strength, stiffness and fracture toughness.
5. GOST 13015-2012. Products of concrete and reinforced concrete for construction. General technical requirements. Rules for acceptance, marking, transportation and storage.
6. GOST 25192-2012. Concretes. Classification and General technical requirements.
7. GOST 27751-2014. Reliability of structures and bases. The main provisions and requirements.
8. GOST 28013-98. Construction mortars. General specifications.
9. GOST R 54923-2012. Composite flexible coupling for multilayer enclosing structures.
10. SP 16.13330.2011 "SNiP II-23-81* Steel structure".
11. SP 20.13330.2011 "SNiP 2.01.07-85* Loads and impacts".
12. SP 22.13330.2011 "SNiP 2.02.01-83* The grounds and buildings construction".
13. SP 24.13330.2011 "SNiP 2.02.03-85 Pile foundation".
14. SP 28.13330.2012 "SNiP 2.03.11-85 Protection of building structures against corrosion".
15. SP 50.13330.2012 "SNiP 23-02-2003 Thermal protection of buildings".
16. SP 51.13330.2011 "SNiP 23-03-2003 Noise protection".
17. SP 63.13330.2012 "SNiP 52-01-2003 Concrete and reinforced concrete structures. Fundamentals".
18. SP 70.13330.2012 "SNiP 3.03.01-87 Bearing and enclosing structures".
19. SP 130.13330.2011 "Precast concrete structures and products".
20. SP 131.13330.2012 "SNiP 23-01-99* Building climatology".
For citation: Zenin S. A., Sharipov R. S., Kudinov O. V., Shapiro G. I. Regulation in Large-Panel Housing Construction: the New Set of Rules on Design of Large-Panel Structural Systems. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 2, pp. 10-15. (In Russian).
About Development of a New Code of Rules "Concrete and Reinforced Concrete Structures. Rules of Repair and Strengthening"
UDC 69.059.25(083.75)
Andrey N. BOLGOV, e-mail: 200651@mail.ru
Valentina F. STEPANOVA, e-mail: vfstepanova@mail.ru
Sergey I. IVANOV, e-mail: 5378018@mail.ru
Dmitry V. KUZEVANOV, e-mail: sdn-2@mail.ru
JSC Research of Construction, NIIZHB named after A. A. Gvozdev, 2-ya Institutskaya ul., 6, Moscow 109428, Russian Federation
Andrey A. SHILIN, e-mail: Andrey.Shilin@mail.ru
Triada Holding, prosp. Marshala Zhukova, 6, str. 2, Moscow 123308, Russian Federation
Absract. Construction and operation of buildings and structures are always accompanied by the appearance of various defects and damages of building constructions. Solving such problems makes it possible to provide required mechanical safety performance and durability in the further usage. The article describes the state of normative documents in the field of repair and strengthening of reinforced concrete structures, it reasons the development a new code of rules "Concrete and reinforced concrete structures. Rules of repair and strengthening" devoted to designing the repair of concrete and reinforced concrete structures as a whole, and strengthening heavy concrete structures of buildings and facilities of different purposes. The main provisions and key requirements of the new standard are presented. The developed code of rules will enable specialists to make reasonable solutions determining the volume of repair required for reinforced concrete structures, design rehabilitation measures as well as to provide the economic efficiency within the reduction in operation cost and extend inter-maintenance periods for existing and newly constructed buildings and structures.
Key words: code of rules "Concrete and reinforced concrete structures. Rules of repair and strengthening", reinforced concrete structures, repair, strengthening, durability, defects, damages, standardization.
REFERENCES
1. ISO 16311-2014. Maintenance and repair of concrete structure. Part 1. General principles. 2014. 19 p.
2. ACI 562M-13. Code requirements for evaluation, repair and rehabilitation of concrete buildings. 2013.
3. GOST 31384-2008. Zashchita betonnykh i zhelezobetonnykh konstruktsiy ot korrozii. Obshchie tekhnicheskie trebovaniya [Protection of concrete and reinforced concrete structures from corrosion. General technical requirements]. (In Russian).
4. GOST 32016-2012. Materialy i sistemy dlya zashchity i remonta betonnykh konstruktsiy. Obshchie trebovaniya [Materials and systems for protection and repair of concrete structures. General requirements]. (In Russian).
5. GOST 32017-2012. Materialy i sistemy dlya zashchity i remonta betonnykh konstruktsiy. Trebovaniya k sistemam zashchity betona pri remonte [Materials and systems for protection and repair of concrete structures. Requirements for protection of the concrete in the repair]. (In Russian).
6. GOST 32943-2014. Materialy i sistemy dlya zashchity i remonta betonnykh konstruktsiy. Trebovaniya k kleevym soedineniyam elementov usileniya konstruktsiy [Materials and systems for protection and repair of concrete structures. The requirements to adhesive joints of elements of strengthening of structures]. (In Russian).
7. GOST 33762-2016. Materialy i sistemy dlya zashchity i remonta betonnykh konstruktsiy. Trebovaniya k in"ektsionno-uplotnyayushchim sostavam i uplotneniyam treshchin, polostey i rasshchelin [Materials and systems for protection and repair of concrete structures. Requirements-injection of sealing compositions and sealing of cracks, cavities and crevices]. (In Russian).
8. GOST R 56378-2015. Materialy i sistemy dlya zashchity i remonta betonnykh konstruktsiy. Trebovaniya k remontnym smesyam i adgezionnym soedineniyam kontaktnoy zony pri vosstanovlenii konstruktsiy [Materials and systems for protection and repair of concrete structures. Requirements for repair compounds and adhesive connections of the contact zone when restoring designs]. (In Russian).
9. Falikman V. R. About European and Russian construction standards the design and challenges of their harmonization. Available at: http://info.snip.kz/standards/downloads/publications.php. (accessed 12.01.2018). (In Russian).
10. Khodakov A. E., Tochenyy M. V., Belyaeva S. V., Nikonova O. G., Pakrastin'sh L. Features of Russian and European standards in the field of repair and protection of concrete structures from corrosion. Stroitel'stvo unikal'nykh zdaniy i sooruzheniy, 2015, no. 3, pp. 130-142. (In Russian).
For citation: Bolgov A. N., Stepanova V. F., Ivanov S. I., Kuzevanov D. V., Shilin A. A. About Development of a New Code of Rules "Concrete and Reinforced Concrete Structures. Rules of Repair and Strengthening". Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 2, pp. 16-22.
Taking into Account the Decrease in Strength of External Layers of Concrete when Calculating Reinforced Concrete Columns by Normal Cross-Sections
UDC 624.012.45.075.23
Dmitry V. KUZEVANOV, e-mail: kuzevanovd@gmail.com
JSC Research of Construction, NIIZHB named after A. A. Gvozdev, 2-ya Institutskaya ul., 6, Moscow 109428, Russian Federation
Abstract. The problem of calculation of reinforced concrete columns with non-uniform concrete strength over the cross-section is considered. Cases and conditions when such heterogeneity arises are shown. An approach to the account of this phenomenon, when controlling the strength of high-strength concrete by introducing a correction factor for the transition from surface strength to strength in the depth of the structure, is presented. The necessity of taking into account such heterogeneity not only when controlling the strength of concrete but when calculating is substantiated. An assessment of correctness of calculations of bearing capacity of compressed elements, when ignoring the fact of the low strength of external concrete layers, is made. The most "cautious" values of permissible limits of changes in the strength of outer and inner layers of concrete in structures, when there are no significant differences in assessing the bearing capacity of elements, are determined. It is shown that the admissible values of the correction factor can vary depending on the sizes of cross-sections of elements controlled. Ways of adapting the existing calculation methods according to normal cross-sections to account the inhomogeneous strength of concrete in section are proposed. Proposals that account non-uniform concrete strength over the cross-section depending on the value of revealed change in the strength of concrete on the surface and in the depth are formulated for practical application.
Key words: high-strength concrete, deformation model, strength control, strength heterogeneity, reinforced concrete columns, calculation by normal cross-sections.
REFERENCES
1. Korevitskaya M. G, Ivanov S. I., Tukhtaev B. Kh. Features of nondestructive testing of concrete strength with the addition of silica fume. Promyshlennoe i grazhdanskoe stroitel'stvo, 2017, no. 1, pp. 88-91. (In Russian).
2. Antsibor A. V., Brusser M. I. Determination of heterogeneity of concrete properties over the cross section of concrete and reinforced concrete structures. Stroitel'nye materialy, 2013, no. 12, pp. 24-25 (In Russian).
3. Veretennikov V. I. To address the heterogeneity of properties of concrete in terms of large-scale vertical rod elements. Sovremennoe promyshlennoe i grazhdanskoe stroitel'stvo, 2011, no. 1, vol. 7, pp. 19-29. (In Russian).
4. Baiburin A. K., Pogorelov S. N. Study of concrete strength heterogeneity in monolithic structures. Inzhenerno-stroitel'nyy zhurnal, 2012, no. 3, pp. 12-18 (In Russian).
5. Gorokhov E. V., Yugov A. M., Veretennikov V. I., et al. Accounting effects of systematic heterogeneity of heavy concrete properties for the volume elements in the selection of safe structural systems of buildings, type and form of bearing and protecting designs, the parameters of their manufacture and operation. Bezopasnost' ekspluatiruemykh zdaniy i sooruzheniy, Moscow, 2011. Pp. 146-167. (In Russian).
6. Bulavitskiy M.S. Equations for concrete strength distribution in the monolithic structure using point calculus mathematical method. Naukoviy v_snik bud-va, 2009, no. 52, pp. 272-278. (In Russian).
7. Yuasa N., Kasai Y., Matsui I. Inhomogeneous distribution of compressive strength from surface layer to interior of concrete in structures. Special Publication, 2002, vol. 192, pp. 269-282.
8. Zalesov A. S., Chistyakov E. A., Laricheva I. Yu. New methods of normal sections calculations for reinforced concrete structures on the basis of deformation model method. Beton i zhelezobeton, 1997, no. 5, pp. 31-34. (In Russian).
9. Zvezdov A. I., Zalesov A. S., Chistyakov E. A., Mukhamediev T. A. Strength calculation for reinforced concrete structures loaded with axial force and bending by new standards. Beton i zhelezobeton, 2002, no. 2, pp. 21-26. (In Russian).
10. Simbirkin V. N., Matkovskiy V. V. The calculation of stress-strain state and strength of reinforced concrete structures for the normal section. Stroitel'naya mekhanika i raschet sooruzheniy, 2010, no. 4, pp. 20-26. (In Russian).
11. Mordovskiy S. S. Calculation of reinforced concrete eccentrically loaded elements using the deformation diagrams. Beton i zhelezobeton, 2012, no. 2, pp. 11-15. (In Russian).
12. Mukhamediev T. A., Kuzevanov D. V. To the problem of calculating reinforced concrete elements loaded with eccentricity by SNiP 52-01. Beton i zhelezobeton, 2012, no. 2, pp. 21-23. (In Russian).
For citation: Kuzevanov D. V. Taking into Account the Decrease in Strength of External Layers of Concrete When Calculating Reinforced Concrete Columns by Normal Cross-Sections. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 2, pp. 23-27.
To the Issue of Actual Work of Pliable Nodes of Steel Frames of Multistory Buildings
UDC 624.014
Valentina M. TUSNINA, e-mail: valmalaz@mail.ru
Aleksej A. KOLYAGO, e-mail: alex777002@gmail.com
Moscow State University of Civil Engineering (National Research University), Yaroslavskoe shosse, 26, Moscow 129337, Russian Federation
Abstract. Taking into account the wide spread in modern construction of multistory public buildings with steel frames designed as a braced structural system with hinge joints of bearing structural elements, the issue of studying the actual behavior of "girder-column" connections remains actual one. Numerous studies in this field prove that such connections are characterized by certain grades of stiffness which directly depends on their structural solution. Therefore, when determining the forces and displacements in calculations of frames of a braced framing, it is necessary to consider the layouts with joints which are able to perceive an appropriate portion of bending moments. To obtain a reliable picture of the stress-strain state of frame blocks at the elastic-plastic stage of work is possible on the basis of numerical calculation methods widely used when designing buildings. The article presents the results of the study of the stress-strain state and bearing capacity of a pliable girder-to-column connection at the elastic-plastic stage of work with the use of CAE ABAQUS on the example of the design of the pin joint with connecting elements in the form of paired vertical angles.
Key words: steel frame; girder; column, pliable node, stiffness; rotation angle; support moment.
REFERENCES
1. Dykhovichny Yu. A. Konstruirovanie i raschet jilih i obschestvennih zdanii povishennoi etajnosti [Designing and calculation of residential and public buildings of the increased number of storeys]. Moscow, Stroyizdat Publ., 1970. 248 p. (In Russian).
2. Troitsky P. N. Issledovanie i sovershenstvovanie konstruktivnih form i uzlov metallicheskih karkasov mnogoetajnih zdanii [Research and improvementof constructive forms and knots of metal frameworks of multystoried buildings]. Dis. kand. tekhn. nauk. Moscow, 1973. 235 p. (In Russian).
3. Li F. X., Xin B. Experimental research and finite element analysis on behavior of steel frame with semi-rigid connections [Экспериментальные исследования и численный расчет стальной рамы с податливыми узлами]. Advanced Materials Research, 2011, vols. 168-170, pp. 553-558.
4. Hu X. B., Yang Y. W., He G. J., Fan Y. L., Zhou P. A moment-shear story model for the design of steel frames with semi-rigid connections [Изгибно-сдвиговая модель для расчета стальных рам с податливыми узлами]. Applied Mechanics and Materials, 2013, vols. 256-259, pp. 821-825.
5. Arul Jayachandran, Marimuthu S., Prabha V., Sectharaman P., Pandian N. Investigation on the behaviour of semi-rigid endplate connections [Исследование работы податливых фланцевых соединений]. Advanced Steel Construction, 2009, vol. 5, no. 4, pp. 432-451.
6. Morris G., Packer J. Beam-to-column connections in steel frames [Сопряжения балок с колоннами в стальных каркасах]. Canadian Journal of Civil Engineering, 1987, vol. 14, no. 1, pp. 68-76.
7. Concepciуn D., Pascual M., Mariano V., Osvaldo M. Review on the modelling of joint behaviour in steel frames [Обзор моделирования действительной работы узлов стальных рам]. Journal of Constructional Steel Research, 2011, vol. 67, pp. 741-758.
8. Аnan'in M. Yu., Fomin N. I. Method of the account of a pliability in joints of metal designs of buildings. Akademicheskij vestnik URALNIIPROEKT RAASN, 2010, no. 2, pp. 72-74. (In Russian).
9. Tusnina V. M. Nesushchaya sposobnost' i deformativnost' podatlivykh uzlov stal'nykh karkasov mnogoetazhnykh zdaniy [The bearing ability and deformation of flexible joints of steel frameworks of multystoried buildings]. Dis. kand. tekhn. nauk. Moscow, 1989. 166 p. (In Russian).
10. Ferdous W. Effect of beam-column joint stiffness on the design of beams [Влияние жесткости соединения балки с колонной на работу балок]. 23rd Australian Conference on the Mechanics of Structures and Materials, 2014, pp. 701-706.
11. Tusnina O., Danilov A. The stiffness of rigid joints of beam with hollow section column [Жесткость рамных узлов сопряжения ригеля с колонной коробчатого сечения]. Magazine of Civil Engineering, 2016, no. 4, pp. 40-51.
12. Vatin N., Bagautdinov R., Andreev K. Advanced method for semi-rigid joints design [Усовершенствованный метод проектирования податливых узлов]. Applied Mechanics and Materials, 2015, vols. 725-726, pp. 710-715.
13. Lui E.M., Chen W.P. Analysis and behavior of flexibly-jointed frames [Расчет и действительная работа каркасов с податливыми узлами]. Engineering Structures, 1986, vol. 8, pp. 107-118.
14. Frye M., Morris G., Glenn A. Analysis of flexibility connected steel frame [Расчет стальной рамы с податливыми узлами]. Canadian Journal of Civil Engineering, 1975, vol. 2, pp. 280-291.
15. Тimofeev G. A. To a question of the correcting moments in calculation of elasto-plastic rod systems. Prochnost ustoichivost i kolebaniya stroitelnih konstrukcii. Mejvuzovskii tematicheskii sbornik trudov. Leningrad, LISI Publ., 1987, pp. 159-162. (In Russian).
16. Вzdawka K., Heinisuo M. Fin plate joint using component method of EN 1993-1-8 [Расчет узла на планке с использованием метода компонентов по EN 1993-1-8]. Rakenteiden Mekaniikka (Journal of Structural mechanics), 2010, vol. 43, no. 1, pp. 25-43.
17. Вandyopadhyay M., Banik A. Numerical analysis of semi-rigid jointed steel frame using rotational springs [Численный расчет стальной рамы с податливыми узлами с учетом поворотной жесткости]. International conference on structural engineering and mechanics (ICSEM), 20-22 Dec. 2013. Rourkela, India.
18. Bandyopadhyay M., Banik A. K., Datta T. K. Numerical modeling of compound element for static inelastic analysis of steel frames with semi-rigid connections [Численное моделирование составного элемента для статического расчета в пластической стадии стальных рам с податливыми соединениями]. Advances in Structural Engineering, 2015, vol. 3, pp. 543-558.
19. Тroitskiy P. N., Levitanskiy I. V. Opornye soedineniya razreznyh balok na vertikal'nyh nakladkah, privarivaemyh k stenke balki (uzly UNS) [Basic connections of cutting beams on the vertical slips welded with a wall of a beam (UNS joints)]. Materialy po metallicheskim konstrukciyam. Moscow, TsNIIproektstal'konstruktsiya Publ., 1970, iss. 4. 120 p. (In Russian).
For citation: Tusnina V. M., Kolyago A. A. To the Issue of Actual Work of Pliable Nodes of Steel Frames of Multistory Buildings. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 2, pp. 28-34. (In Russian).
Load Test of a Precast-Monolithic Floor Supported on Bearing Walls of a Multistory Building
UDC 624.073
Sergey V. BOSAKOV, e-mail: sevibo@yahoo.com
Institut BelNIIS, ul. F. Skoriny, 15, Minsk 220114, Republic of Belarus
Alexander I. MORDICH, e-mail: alex.mordich@mail.ru
BESTinzhiniring, prosp. Masherova, 9, Minsk 220029, Republic of Belarus
Anatoly A. KARYAKIN, e-mail: karyakinaa41@mail.ru, Sergey A. SONIN, e-mail: sonin22@is74.ru,
Iliya S. DERBENTCEV, e-mail: kirpich@list.ru, Pavel V. POPP, e-mail: polkobnik@mail.ru
South Ural State University (National Research University), prosp. Lenina, 76, Chelyabinsk 454080, Russian Fereration
Abstract. Investigations by various authors, experience of domestic and foreign construction make it possible to assume that a bearing frame which includes bearing walls and flat precast-monolithic floors with hollow-core slabs will be technologically attractive and cost-effective for high-rise buildings. The test of a natural floor and its joints with bearing walls has been conducted. Loading test results and theoretical analysis show that this floor supported on bearing walls is designed according to current Russian normative documentation and have the bearing capacity and stiffness much higher than required. It is ensured by tight contacts between elements of the floor and with bearing walls as well as by the presence of internal connections. In the floor, due to tight contacts and internal connections, the structural integrity was provided. Each cell operates like a one-piece plate supported along the contour. Redistribution of forces between elements of the floor contributes to significant reduction in the value of forces in each hollow-core slab comparing with the scheme of free bearing. The test results of the floor deck, theoretical analysis and experience in the construction of 25-story building fully confirmed the high reliability and efficiency both of the floor structure and the bearing frame as a whole.
Key words: flat floor deck, hollow-core slabs, bearing walls, plate, strength, stiffness.
REFERENCES
1. Yanko A. E. The place of frame-wall system "Jubileiny" in structural designs of residential houses. Promyshlennoe i grazhdanskoe stroitel'stvo, 2004, no. 12, pp. 7-9. (In Russian).
2. Professionals met at the VI International scientific-practical conference "Development of panel construction in Russia" InterConPan 2016 in Krasnodar. Zhilishchnoe stroitel'stvo, 2016, no. 10, pp. 3-10. (In Russian).
3. Drozdov P. F., Senin N. I., Kiyashko V. Yu. A new design of monolithic high-rise buildings. Beton i zhelezobeton, 1990, no. 10, pp. 10-11. (In Russian).
4. Krylov S. M. Experimental study of reinforced concrete beams of frame buildings. Issledovanie svoystv betona i zhelezobetonnykh konstruktsiy. Trudy NIIZhB. Moscow, Gosstroyizdat Publ., 1959, iss. 4, pp. 276-334. (In Russian).
5. Semchenkov A. S. Testing of precast slabs are simply supported along the contour. Beton i zhelezobeton, 1981, no. 1, pp. 11-13. (In Russian).
6. Ayvazov R. L., Lapitskiy I. V. Precast slab, simply supported on the contour and working with cross spacers. Beton i zhelezobeton, 1991, no. 11, pp. 7-9. (In Russian).
7. Bosakov S. V., Mordich A. I., Simbirkin V. N. About improving the bearing capacity and rigidity of floors made of hollow-core slabs. Promyshlennoe i grazhdanskoe stroitel'stvo, 2017, no. 4, pp. 44-49. (In Russian).
8. Karyakin A. A., Sonin S. A., Popp P. V., Aliluev M. V. The test field of a fragment of precast-monolithic frame systems "ARCOS" with flat ceilings. Vestnik YuUrGU. Seria "Stroitel'stvo i arkhitektura", 2009, no. 35(168), iss. 9, pp. 16-20. (In Russian).
9. EN 1991-1-7. Eurocode 1. Accidental Actions. 1. General actions.
10. ACI 318-14. Building Code Requirements for Structural Concrete and Commentary (ACI 318R-14).
11. Rekomendatsii po ispytaniyu i otsenke prochnosti, zhestkosti i treshchinostoykosti opytnykh obraztsov zhelezobetonnykh konstruktsiy [Recommendations on testing and evaluation of strength, stiffness and fracture toughness of prototypes of reinforced concrete structures]. Moscow, NIIZhB Publ., 1987. 36 p. (In Russian).
12. Timoshenko S. P., Voynovskiy-Kriger S. Plastinki i obolochki [Of plates and shells]. Moscow, Nauka Publ., 1966. 636 p. (In Russian).
For citation: Bosakov S. V., Mordich A. I., Karyakin A. A., Sonin S. A., Derbentcev I. S., Popp P. V. Load Test of a Precast-Monolithic Floor Supported on Bearing Walls of a Multistory Building. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 2, pp. 35-42. (In Russian).
Ways to Improve Structural-and-Technological Solutions of Bearing Brick Walls
UDC 692.23
Vyacheslav N. CHERNOIVAN, e-mail: vnchernoivan@list.ru
Vladimir G. NOVOSELTSEV, e-mail: vgnovoseltsev@yandex.ru
Nikolay V. CHERNOIVAN, e-mail: chernoivan@inbox.ru
Vitaliy I. YUSKOVICH, e-mail: yuskovich_vitaly@mail.ru
Anna V. CHERNOIVAN, e-mail: bel_anna@list.ru
Brest State Technical University, ul. Moskovskaya, 267, Brest 224013, Republic of Belarus
Abstract. The article contains information about research in the improvement of design solutions of bearing brick walls which has been held in Russia since the beginning of the XIX century. Mass construction of brick buildings has shown that the massive brickwork on heavy mortars is more technological, than the massive brick work on light mortars. It is noted that further improvement of structural-technological solutions of the bearing brick walls has been directed to decline of mass of a brick work. An analysis of the constructive decision, technology of construction and operational efficiency of external load-bearing walls made of multi-layered brick masonry with slab insulant with flexible connections is carried out. A new design solution and technology of construction of external walls with prefabricated heat insulation-decorative structural elements have been developed. It is offered to make load-bearing brick walls from fully prefabricated separate brick elements (partitions). Such technology will make it possible to transfer the construction of bearing brick walls on the building site from manual process of brick work to the semi-mechanized mounting process. The recommended constructive and technology solution will provide substantial reduction in labor intensiveness and cost of construction of brick residential buildings.
Key words: solid brick work, multi-layered brick masonry with slab insulant, facing wall panel, prefabricated brick element.
REFERENCES
1. Vasilev B. F. Naturnye issledovaniya temperaturno-vlazhnostnogo rezhima zhilykh zdaniy [Field studies of temperature and humidity conditions of residential buildings]. Moscow, Gosudarstvennoe izdatel'stvo literatury po stroitel'stvu i arkhitekture Publ., 1957. 210 p. (In Russian).
2. Kolodtsevaya kladka sistemy Popova i Orlyankina [Hollow masonry system Popov and Orlyankina]. Available at: http://vlastra.ru/encyclopedia/books/detail.php?SECTION_ID=233 (accessed 30.04.2017). (In Russian).
3. Franchuk A. U. Tablitsy teplotekhnicheskikh pokazateley stroitel'nykh materialov [Tables of thermal properties of building materials]. Мosow, Gosstroy SSSR, NIISF Publ., 1969. 144 p. (In Russian).
4. Ananev A. I., Lobov O. I. Ceramic brick and its place in the construction of modern buildings. Promyshlennoe i grazhdanskoe stroitel'stvo, 2014, no. 10, pp. 62-65. (In Russian).
5. Chernoivan V. N., Novoseltsev V. G., Chernoivan N. V., Kovenko Ju. G., Matvienko E. V. To the assessment of the operational efficiency of multilayer brick masonry bearing walls with slab insulation. Stroitel'naya nauka i tekhnika, 2013, no. 2, pp. 27-31. (In Russian).
6. Umnyakova N. P. Durability of three-layered walls with brick facing that provides high thermal protection. Vestnik MGSU, 2013, no. 1, pp. 94-100. (In Russian).
7. Patent na poleznuyu model' BY 8892. Teploizolyatsionnaya oblitsovochnaya stenovaya panel' [Heat-insulating cladding wall panel]. Chernoivan V. N., Novoseltsev V. G., Chernoivan N. V. Opubl. 02.04.2012. (In Russian).
8. Chernoivan V. N., Chernoivan A. V., Chernoivan N. V. Estimate of operation and technical and economic characteristics for warmth-keeping bearing brick walls. Vestnik BrGTU. Stroitel'stvo i arkhitektura, 2015, no. 1, pp. 80-83. (In Russian).
9. Stupishin L. U., Masalow A. V. Features of measurement of the thermal parameters of masonry. Applied Mechanics and Materials, 2014, vol. 501-504, pp. 2217-2220.
For citation: Chernoivan V. N., Novoseltsev V. G., Chernoivan N. V., Yuskovich V. I., Chernoivan A. V. Ways to Improve Structural-and-Technological Solutions of Bearing Brick Walls. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 2, pp. 43-47. (In Russian).
STRUCTURAL MECHANICS
The Use of Generalized Equations of Finite Difference Method for Calculation of Orthotropic Plates
UDC 624.072
Nataliya B. UVAROVA, e-mail: nbuvarova@yandex.ru
Vladimir V. FILATOV, e-mail: fofa@mail.ru
Moscow State University of Civil Engineering (National Research University), Yaroslavskoe shosse, 26, Moscow 129337, Russian Federation
Anastasia A. CHUBAROVA, e-mail: achubarova@yandex.ru
Terra Auri Proekt, ul. Leninskaya Sloboda, 19, str. 6, Moscow 115280, Russian Federation
Abstract. The article deals with the calculation of orthotropic plates for a range of loads. The resolving differential equilibrium equation of orthotropic plates in partial derivatives of the fourth order is reduced to the differential equation of the second order concerning the second partial derivative functions of deflections. To construct the numerical solution, the modified differential equation is approximated by the generalized equation of the method of finite differences. The second difference equation for the unknowns is the equation resulting from the consideration of compatibility of deformations of the elements, on which the grid of coordinate lines divides the region of integration. The finite differences method algorithm makes it possible to take into account the finite discontinuities of the right part of differential equation, calculate the plates for linear and concentrated impacts without the involvement of peripheral points and condensation of the grid at discontinuous impacts. On the basis of equations obtained, the calculations of hinged orthotropic plates under the effect of uniformly distributed load, simple bending, and strip load have been made. The reliability of the solutions is confirmed by the study of convergence of results on several meshes, comparing the obtained solutions with some existing data, executing static and kinematic tests.
Key words: orthotropic plate, differential equation, numerical solution, generalized equations of finite difference method, hinge support, boundary conditions.
REFERENCES
1. Lekhnitskiy S. G. Anizotropnye plastiny [ Anisotropic plates]. Moscow-Leningrad, Gostekhizdat Publ., 1947. 355 p. (In Russian).
2. Timoshenko S. P., Voynovskiy-Kriger S. Plastinki i obolochki [Plates and shells]. Moscow, Nauka Publ., 1966. 635 p. (In Russian).
3. Gabbasov R. F., Gabbasov A. R., Filatov V. V. Chislennoe postroenie razryvnykh resheniy zadach stroitel'noy mekhaniki [Numerical construction of discontinuous solutions to the problems of structural mechanics]. Moscow, ASV Publ., 2008. 277 p. (In Russian).
4. Gabbasov R. F., Solomon Tadesse Demisse. Efficient numerical method to the calculation of the orthotropic bending plate. Izvestia vuzov. Stroitelstvo, 2005, no. 8, pp. 24-28. (In Russian).
5. Gabbasov R. F., Kao Z. B. The calculation of compressed curved orthotropic plates by the method of successive approximations. Vestnik MGSU, 2010, no. 4, pp. 47-54. (In Russian).
6. Gabbasov R. F., Uvarova N. B., Aleksandrovskiy M. V. Numerical solution of the problem of natural oscillations of bending orthotropic plats. Promyshlennoe i grazhdanskoe stroitel'stvo, 2015, no. 11, pp. 37-39. (In Russian).
7. Smirnov V. A. Numerical method of calculation of orthotropic plates. Issledovaniya po teorii sooruzheniy, Iss. XVIII. Moscow, Stroyizdat Publ., 1970. Pp. 56-64. (In Russian).
8. Smirnov V. A. Raschet plastin slozhnogo ochertaniya [Сalculation of plate of complex shape]. Moscow, Stroyizdat Publ., 1978. 300 p. (In Russian).
9. Gribov A. P., Velikanov P. G. Application of Fourier transform to obtain the fundamental solution to the problem of bending of an orthotropic plate. Matematicheskoe modelirovanie i kraevye zadachi, 2004, no. 3, pp. 67-71. (In Russian).
10. Dem'yanushko I. V., El'madavi M. E. Modeling of orthotropic plates using software complex Patran-Nastran. Vestnik MADI, 2008, no. 3, pp. 61-65. (In Russian).
11. Guang-Nah Fanjiang, Qi Ye, Fernandez Omar N., Taylor Larry R. Fatigue analysis and design of steel orthotropic deck for Bronx-Whitestone bridge, New York City. Transportation Research Board, 2004, vol. 1892, pp. 69-77.
12. Tsakopoulos Paul A., Fisher John W. Full-scale tests of steel orthotropic deck panel for the Bronx-Whitestone bridge rehabilitation. Bridge Structures, 2005, vol. 1, iss. 1, pp. 55-66.
For citation: Uvarova N. B., Filatov V. V., Chubarova A. A. The Use of Generalized Equations of Finite Difference Method for Calculation of Orthotropic Plates. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 2, pp. 48-52. (In Russian).
On the Theory of Strength of Reinforced Concrete Elements along Oblique Sections
UDC 624.072.2
Aleksei N. MOROZOV, e-mail: aleksei.morozofff@gmail.com
St. Umera, 7, apt 25, 13816 Tallinn, Republic of Estonia
Abstract. The studies were carried out using aerated concrete with low workability and in the absence of a large aggregate, which allows more accurate evaluation of stresses and the use of small base sensors. Calculations of strength of reinforced concrete structures by normal and oblique sections have significant difference in terms of strength criteria. If in the first case the strength criterion is an actual compression strength determined by standard methods, in the second case the strength criterion is a rather vague shear strength, which has different values relative to the tensile strength and is a function of the shape of the normal stress distribution diagram in the vertical section passing through the top of the oblique crack and attributed to the value of the relative shear span. Because of this, taking into account the cutout of the indicated diagram, the formula was derived at the end of the oblique crack, which brings about change in the value of shearing stresses, and in some cases results in their maximum spot. The value of shearing stresses was determined on the basis of aerated concrete strength criterion and experimental values of its strengths derived for this condition, with said value used to determine the effective value of these stresses subject to the coefficient m, which is equal to the axial tension strength. It is shown that the strength of the normal section passing through the top of the critical oblique crack reflects well the actual bearing capacity of the oblique section, on which basis the equilibrium condition for the moments by normal and oblique sections was derived. A comparison of the experimental values of transverse load with their calculated values according to the given methodology shows good coincidence. An analysis of the experimental data on the strength of oblique sections of heavy concrete beams given in the literature also produces positive results.
Key words: oblique and normal section passing through the top of oblique crack, shear stresses, transverse force.
REFERENCES
1. Zalesov A. S., Il'in O. F. Soprotivlenie zhelezobetonnykh balok deystviyu poperechnykh sil [Shear force resistance of reinforced concrete beams]. Moscow, Stroyizdat Publ., 1977, pp. 115-140. (In Russian).
2. Gusakov V. N., Fortuchenko Yu. A. Investigation of deformed state of shear reinforcement in heavy silicate concrete structures. Sb. tr. VNIISTROM. Moscow, 1966, no. 6, pp. 171-207. (In Russian).
3. Morozov A. N. Aerated concrete structure shear strength calculation. Beton i zhelezobeton, 1991, no. 5, pp. 13-14. (In Russian).
4. Morozov A. N. Aerated concrete structure strength calculation by normal sections. Beton i zhelezobeton, 1988, no. 7, pp. 18-19. (In Russian).
5. Morozov A. N. Cinder-shale aerated concrete structure strength calculation by oblique sections. Tallinn, NII stroitel'stva Gosstroya ESSR Publ., 1985. 80 p. (In Russian).
6. Morozov A. N. On new approaches and theory of calculating the strength of aerated concrete elements by oblique sections. Tallinn, NII stroitel'stva Estonii Publ., 1992, pp. 10-25. (In Russian).
7. Geniev G. A., Kissyuk V. N., Levin N. I., Nikonova G. A. Prochnost' legkikh i yacheistykh betonov pri slozhnykh napryazhennykh sostoyaniyakh [Strength of light and cellular concretes in a combined stress state]. Moscow, Stroyizdat Publ., 1978, pp. 32-74. (In Russian).
8. Kani G. N. I. Basic facts concerning shear failure. Journal of ACI, 1966, vol. 63, no. 6, pp. 675-692.
9. Morozov A. N. Refining the procedure for calculating the strength of cinder-shale aerated concrete structures. Tallinn, NII stroitel'stva Gosstroya ESSR Publ., 1986, pp. 1-17. (In Russian).
10. Morozov A. N. On some concepts for shear strength calculating the strength of reinforced concrete elements by oblique sections. Problemy sovremennoy nauki i obrazovaniya, 2015, no. 4(34), pp. 48-58. (In Russian).
11. Zalesov A. S., Klimov Yu. A. Prochnost' zhelezobetonnykh konstruktsiy pri deystvii poperechnykh sil [Shear Strength of Reinforced Concrete Structures]. Kishinev, Budivel'nyk Publ., 1989. 104 p. (In Russian).
12. Silant'ev A. S. Strength of bent ferro-concrete elements without clamps by oblique sections subject to parameters of longitudinal reinforcement. Vestnik MGSU, 2012, no. 2, vol. 1, pp. 163-169. (In Russian).
For citation: Morozov A. N. On the Theory of Strength of Reinforced Concrete Elements along Oblique Sections. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 2, pp. 53-59. (In Russian).
BUILDING MATERIALS AND PRODUCTS
Application of High Quality Concrete on the Basis of Local Materials for Production of Paving Slabs in Vietnam
UDC 666.97:625.881
Tang Van LAM, e-mail: lamvantang@gmail.com
Boris I. BULGAKOV, e-mail: fakultetst@mail.ru
Olga V. ALEKSANDROVA, e-mail: aleks_olvl@mail.ru
Oksana A. LARSEN, e-mail: larsen.oksana@mail.ru
Nadezda A. GALCEVA, e-mail: galcevanadezda@mail.ru
Ngo Xuan HUNG, e-mail: xuanhung1610@gmail.com
Moscow State University of Civil Engineering (National Research University), Yaroslavskoe shosse, 26, Moscow 129337, Russian Federation
Abstract. The use of self-compacting concrete mixes for producing paving slabs makes it possible to avoid the need for vibration compaction of raw material compositions. In this case, the resulting products have the required strength, resistance to abrasion and water absorption not exceeding the permissible values. For obtaining self-compacting concrete mixtures, ashes and slag, wastes generated by the industry and agriculture, can be used that will contribute to the solution of environmental problems, and also allow to improve the operational properties of the concrete product and increase the economic efficiency of their production. As a result of the conducted experimental studies, it was found that colored paving slabs based on self-compacting concrete mixes of the developed compositions meet the requirements of the standard TCVN 6476: 1999 (Vietnam). In addition, they have a wide variety of sizes and a wide range of colors which will contribute to the creation of a rational and aesthetically attractive urban landscape. The rough surface of such tiles makes them non-slip in rainy weather, it is important for the humid climatic conditions of Vietnam.
Key words: colored paving slab, self-compacting concrete mix, industrial waste, environmental pollution, fly ash, rice husk ash.
REFERENCES
1. Trinh Quoc Thang. Technology and organization of construction works. Hanoi, Construction Publ., 2010. 186 p.
2. Tang Van Lam, Bulgakov B. I., Aleksandrova O. V., Larsen O. A. The possibility of using ash residues for the production of construction materials in Vietnam. Vestnik BGTU im. V. G. Shukhova, 2017, no. 6, pp. 6-12. (In Russian).
3. Trinh Hong Tung. Use of industrial waste for the production of building materials. Collection of lectures for graduate students of the specialty "Building Materials" of the Hanoi Civil Engineering University. Hanoi, 2010, 25 p.
4. Government Office. Results of the implementation of the production program for the utilization of unburned materials and the use of ash, slag and gypsum - wastes from the operation of thermal power plants and chemical plants. Advertisement no. 218/TB-VPCP. Hanoi, 17/06/2013, 3 p.
5. Shesternin A. I., Korovkin M. O., Yeroshkina N. A. Basics of self-compacting concrete technology. Molodoy uchenyy, 2015, no. 6(86), pp. 226-228. (In Russian).
6. Ahmed Loukili. Self-Compacting concrete. British Library Cataloguing-in-Publication Data, 2011, 272 p.
7. Nguyen Nhu Quy. The theory of concrete technology. Collection of lectures for graduate students of the specialty "Building Materials" of the Hanoi Civil Engineering University. Hanoi, 2010, 43 p.
8. Voylokov I. A. Self-sealing concrete. A new stage in the development of concreting. Betony, 2008, no. 4, pp. 5-8. (In Russian).
9. Kalashnikov V. I. The calculated composition of high-strength self-compacting concrete. Stroitel'nyye materialy, 2008, no. 10, pp. 4-6. (In Russian).
10. Nguyen Quang Phu. Selection of raw materials for the production of self-compacting concrete. Science and technology of water resources and environment, no. 44(3/2014), pp. 43-48.
11. Recommendations for the selection of concrete mixes for heavy and fine-grained concrete. Moscow, 2016. 100 p. (In Russian).
12. ACI Committee 211.4R-08. Guide for selecting proportions for high-strength concrete using portland cement and other cementitious materials. 2008, 13 p.
13. Тоan Van Ngo. Study on the effect of husk ash and superplasticizer on the properties of lakes, mortar and concrete. Journal of Science and Technology, 2013, no. 3-4, pp. 41-51.
14. Biznes-plan organizatsii proizvodstva trotuarnoy plitki i stenovogo kamnya na baze linii "Rifey-Universal" [Business plan for the organization of production of paving tiles and wall stone-based "Riphean-Universal" line]. Zlatoust, 2014, 22 p. (In Russian).
15. A contractor's guide to installing interlocking concrete pavers. 1996-2006- Ideal concrete block company, inc., 48 р.
16. Kim Huy Hoang, Bui Рuc Vinh, Tran Van Manh, Ha Son Tri. The optimal composition of high-quality self-compacting concrete. Scientific and technical development, 2010, vol. 13, no. 2. pp. 5-15.
17. Wetzel A., Piotrowski S., Middendort B. Paving slabs with ultra-high performance concrete face concrete. Institute of Structural Engineering, Dept. of Structural Materials and Construction Chemistry, University of Kassel, Germany, 2016, 7 p.
18. The Office of the Prime Minister of Vietnam. Order №121 / 2008 / QD-TTg, dated 29 August 2008 "On approval of the master plan for the development of production of construction materials in Vietnam until 2020", 8 p.
19. Nguyen Van Chanh, Tran Van Mien, Nguyen Hoang Duy, Tran Thi Hong Van. Research of self-compacting concrete for the production of concrete paving bricks. Materials of the scientific and technical conference. Ho Chi Minh, Technological University Publ., 2009, pp. 113-120.
20. TCVN 6476:1999. Footway concrete slabs. Specifications. Hanoi, 1999, 4 p.
For citation: Tang Van Lam, Bulgakov B. I., Aleksandrova O. V., Larsen O. A., Galceva N. A., Ngo Xuan Hung. Application of High Quality Concrete on the Basis of Local Materials for Production of Paving Slabs in Vietnam. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Construction], 2018, no. 2, pp. 60-66. (In Russian).
Wood as a Building Material: Problems and Prospects of Use
UDC 691.11:674.21
Valentina V. ZOZULYA, e-mail: zva-inga@mail.ru
Ol'ga V. ROMANCHENKO, e-mail: Romanchenko.OV@rea.ru
Plekhanov Russian University of Economics, Stremyanny per., 36, Moscow 117997, Russian Federation
Viktor V. SAKHANOV, e-mail: sakhanov@rambler.ru
State Research Center for the Timber Industry Complex, N. Syromyatnicheskaya ul., 5/3a, Moscow 105120, Russian Federation
Andrey A. FITCHIN, e-mail: fitchin.gizelking@yandex.ru
Mytishi branch of Bauman Moscow State Technical University, 1-ya Institutskaya ul., 1, Mytischi 141005, Russian Federation
Abstract. According to the "Concept of Long-Term Social and Economic Development of the Russian Federation for the period until 2020," one of the directions for the development of housing construction should be low-rise wooden housing, including the use of prefabricated wooden structures on the basis of modern technologies. Wood, unlike other building materials, is a renewable resource, it has a high specific strength, processability in application, decorative and environmental friendliness. The effectiveness of the use of wood in wooden housing construction is shown on the example of a number of industrially developed countries, including the European Union, the USA and Canada. Based on the analysis, the authors determined the directions and scale of the development of innovative production of construction materials based on wood, wood-composite products and wood-based sheet materials, including when used in the construction for the foreseeable future until 2030. The main problems that hamper the use of new materials based on wood in housing and civil construction, including wooden and low-rise housing are considered. Results of the study make it possible to conclude that there is a significant share of modern wood materials in civil engineering, in housing construction especially. The most significant effect from the use of wood can be achieved in low-rise construction.
Key words: timber industry complex, wooden and low-rise housing, civil engineering, innovative wood materials, production capacity.
REFERENCES
1. Available at: https://www.greenga.ru/news/derevyannaya-evropa/ (accessed 10.06.2017). (In Russian).
2. Kazeykin V. S., Baronin S. A., Chernykh A. G., Androsov A. N. Problemnye aspekty razvitiya maloetazhnogo zhilishchnogo stroitel'stva Rossii [Problematic aspects of the development of low-rise housing construction in Russia]. Moscow, INFRA-M Publ., 2011. 278 p. (In Russian).
3. Kislyy V. Prospects for the development of low-rise housing construction: estimates, forecasts, proposals. LesPromInform, 2014, no. 4 (102), pp. 126-130. (In Russian).
4. Kondratyuk V. A. State and prospects of the development of wooden housing construction in Russia. Lesnoy ekonomicheskiy vestnik, 2013, no. 1, pp. 12-27. (In Russian).
5. Zhukovskiy O. E., Saraev V. N., Chernykh A. G. Worthy life through decent housing. Ekonomicheskie strategii, 2006, vol. 8, no. 7, pp. 102-109. (In Russian).
6. Federal'naya sluzhba gosudarstvennoy statistiki [Federal State Statistics Service]. Available at: resource: http://gks.ru. (accessed 10.06.2017). (In Russian).
7. Kobeleva S. A. Prospects of wooden house-building. Aktual'nye problemy lesnogo kompleksa, 2012, no. 32, pp. 83-86. (In Russian).
8. Prognoz razvitiya lesnogo kompleksa Rossiyskoy Federatsii do 2030 goda [Outlook for forest sector of the Russian Federation up to 2030]. Moscow, Rosleskhoz Publ., 2012. 96 p. (In Russian).
9. Available at: http://www.rosleshoz.gov.ru/ (accessed 10.06.2017). (In Russian).
10. Tarasenko M. Manufacture of glued wooden structures. LesPromInform, 2014, no. 3 (101), pp. 120-123. (In Russian).
11. Available at: http://www.customs.ru/ (accessed 10.06.2017). (In Russian).
12. Nikol'skaya V. The Russian OSB market is oriented to growth. LesPromInform, 2016, no. 2 (116), pp. 16-20. (In Russian).
13. Nikol'skaya V. Russian laminate market: dynamic development. LesPromInform, 2016, no. 3 (117), pp. 122-125. (In Russian).
14. Available at: http://economy.gov35.ru/rcpp/klaster35/wood/ (accessed 10.06.2017). (In Russian).
15. Fitchin A. A. House-building cluster in Tver region: conditions and prerequisites for formation. Tendentsii i perspektivy razvitiya sotsiotekhnicheskoy sredy: materialy II mezhdunarodnoy nauchno-prakticheskoy konferentsii [Proc. 2nd Int. Sci. Conf. on December 14, 2016 "Trends and prospects for the development of the socio-technical environment"]. Moscow, SGU Publ., 2016, pp. 179-183. (In Russian).
16. Fitchin A. A., Kozhemyako N. P. Cluster approach as the basis of the effective use of forest resources. Ekonomika i predprinimatel'stvo, 2016, no. 11-2(76-2), pp. 538-545. (In Russian).
For citation: Zozulya V. V., Romanchenko O. V., Sakhanov V. V., Fitchin A. A. Wood as a Building Material: Problems and Prospects of Use. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 2, pp. 67-71.
INFORMATION SYSTEMS IN CONSTRUCTION
Approaches to the Analysis of Information Models of Buildings and Complexes
UDC 65.011.56
Pavel D. CHELYSHKOV, e-mail: chelyshkovpd@mgsu.ru
Moscow State University of Civil Engineering (National Research University), Yaroslavskoe shosse, 26, Moscow 129337, Russian Federation
Abstract. Simulation modeling is a promising way to improve the quality of realization of the objects of industrial and civil construction. The article considers approaches to the analysis of information models of buildings and complexes of various purposes which make it possible to implement the optimization of management processes. Two criteria for assessing the quality of the model are proposed; they are the criterion of information saturation of the model and relevance criterion of the model. Practical application of the first criterion makes it possible to determine the optimal plan for filling the information model, herewith optimization is executed according to the maximum amount of useful information. The criterion is applied at all stages of the life cycle of the model in the process of actualizing the model data. The second criterion makes it possible to assess the need for actualization of model data. Being a vector (in the space of significant values of the modeling object) of deviating the model data from the values of the modeling object, the criterion gives a signal of the need to start the procedure for updating the model data according to the specified rules. The proposed group of criteria provides the analytical support for the control process over the information modeling of construction objects.
Key words: information modeling, criterion of information saturation, relevance criterion of models, construction objects.
REFERENCES
1. Volkov A. A. Fundamentals of homeostatic buildings and structures. Promyshlennoe i grazhdanskoe stroitel'stvo, 2002, no. 1, pp. 34-35. (In Russian).
2. Volkov A. A. Systems of active safety of construction objects. Zhilishchnoe stroitel'stvo, 2000, no. 7, p. 13. (In Russian).
3. Volkov A. A. Cybernetics of construction systems. Cyber-physical construction systems. Promyshlennoe i grazhdanskoe stroitel'stvo, 2017, no. 9, pp. 4-7. (In Russian).
4. Volkov A. A. Gomeostat in construction: a system approach to monitoring methods. Promyshlennoe i grazhdanskoe stroitel'stvo, 2003, no. 6, pp. 68. (In Russian).
5. Dobrynin A. P., et al. Digital economy - the different ways to the effective use of technology (BIM, PLM, CAD,Ion, Smart City, BIG DATA and other). International Journal of Open Information Technologies, 2016, vol. 4, no. 1, pp. 4-11. (In Russian).
6. Namiot D. E. Smart cities. International Journal of Open Information Technologies, 2016, vol. 4, no. 1, pp. 1-3. (In Russian).
7. Kupriyanovskiy V. P., Namiot D. E., Kupriyanovskiy P. V. Standardization of Smart cities, the Internet of things and Big Data. Considerations for practical use in Russia. International Journal of Open Information Technologies, 2016, no. 2, pp. 34-40. (In Russian).
8. Ginzburg A. V. Building life cycle information modelling. Promyshlennoe i grazhdanskoe stroitel'stvo, 2016, no. 9, pp. 61-65. (In Russian).
9. Ginzburg A. V. BIM technologies throughout the life cycle of a building object. Informatsionnye resursy Rossii, 2016, no. 5, pp. 28-31. (In Russian).
10. Ginzburg A. V., Shilova L. A., Shilov L. A. Modern standards of information modeling in construction. Nauchnoe obozrenie, 2017, no. 9, pp. 16-20. (In Russian).
11. Ginzburg A. V., Kozhevnikov M. M. Improving the organization of construction of bridge structures on the basis of information modeling. Vestnik BGTU im. V. G. Shukhova, 2017, no. 8, pp. 52-56. (In Russian).
12. Kozhevnikov M. M., Ginzburg A. V., Kozhevnikova S. T. Modern directions of information modeling in the aspect of road construction. Transportnoe delo Rossii, 2017, no. 3, pp. 67-69. (In Russian).
13. Kozhevnikov M. M., Ginzburg A. V., Kozhevnikova S. T. Prospects for the development of information modeling in bridge construction. Nauka i biznes: puti razvitiya, 2017, no. 8, pp. 22-27. (In Russian).
For citation: Chelyshkov P. D. Approaches to the Analysis of Information Models of Buildings and Complexes. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 2, pp. 72-75.
STAFF TRAINING
Рroblems and Directions of Improving the Training of Personnel in the Context of Implementing the Strategy of Innovative Development of Construction Industry
UDC 69.007
Vasily A. PRASLOV, е-mail: praslov_vasiliy@inbox.ru
Inna I. AKULOVA, е-mail: akulovaii@yandex.ru
Tatyana V. SHCHUKINA, е-mail: schukina.niki@yandex.ru
Voronezh State Technical University, ul. 20 letiya Oktyabrya, 84, Voronezh 394006, Russian Federation
Abstract. Modern problems of the personnel training for the construction industry are considered. The stages and processes of personnel training are indicated, their interrelation with programming of development of a building complex is shown. The main problems formed due to the inconsistency between the requirements of the currently implemented strategy of innovative development and the existing system of personnel training are highlighted, namely: the lack of relevance of existing educational standards and programs, the reduction of the level of necessary engineering training and practical skills of graduates of universities, lack of proper professionalism of skilled workers. The system-wide problems of personnel training include the structural deficit of certain categories of workers; absence of an effective multi-level system of continuous training and retraining of personnel; reduction in the number of students entering educational institutions of construction profile; decrease of interest of enterprises and organizations in retraining of employees; falling interest among graduates of educational institutions for further professional activities in the construction industry, etc. Taking into account the above-mentioned urgent problems, directions and a set of organizational, structural and vocational-educational measures for improving the sectoral training of personnel are identified. As modern forms of training for specialists, modular vocational training programs have been identified, they should be developed on the basis of consideration of sectoral priorities and professional competencies that ensure the solution of innovative tasks of improving the efficiency of construction production.
Key words: personnel training, innovative development of construction industry, educational standards and programs.
REFERENCES
1. Adamtsevich A. O. Innovative development of Russia's construction industry. Vestnik MGSU, 2015, no. 10, pp. 5-7. (In Russian).
2. Akulova I. I., Chernyshov Ye. M., Praslov V. I. Prognozirovaniye razvitiya regional'nogo stroitel'nogo kompleksa: teoriya, metodologiya i prikladnyye zadachi [Forecasting the development of the regional construction complex: theory, methodology and applied problems]. Voronezh, VGTU Publ., 2016. 162 p. (In Russian).
3. Kolmykova M. A., Khristoforova M. A. Modern socio-economic problems of the construction industry, Intellekt. Innovacii. Investicii, 2012, no. 5-1 (22), pp. 23-25. (In Russian).
4. Krasikova O. V. Development of the construction industry of the region on the basis of an innovative component. Strategiya ustoychivogo razvitiya regionov Rossii, 2014, no. 24, pp. 76-78. (In Russian).
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For citation: Praslov V. A., Akulova I. I., Shchukina T. V. Рroblems and Directions of Improving the Training of Personnel in the Context of Implementing the Strategy of Innovative Development of Construction Industry. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 2, pp. 76-81. (In Russian).