
Tang Van Lam 
Moscow State University of Civil Engineering (National Research University) (MGSU)
Postgraduate Student, Department Technology of Binders and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Bulgakov Boris Igorevich 
Moscow State University of Civil Engineering (National Research University) (MGSU)
Candidate of Technical Sciences, Associate Professor, Department of the Technology of Binders and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Aleksandrova Olga Vladimirovna 
Moscow State University of Civil Engineering (National Research University) (MGSU)
Candidate of Technical Sciences, Associate Professor, Department Technology of Binders and Concretes, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
Subject of Study: the creation and analysis of mathematical models adequately describing the effect of the input variable factors  the proportions of raw components of the concrete mix  on the compressive strength of high performance finegrained concrete at the age of 28 days of normal hardening, which are considered as output objective functions. Objectives: to determine the optimum ratios of ingredients of finegrained concrete mixture, which allow us to achieve the maximum strength of concrete in compression. Materials: for obtaining finegrained concrete mix, a finely distributed binder was used consisting of Portland cement of the type CEM II 42,5 N produced by the “Hoang Thach” factory, fly ash, rice husk ash (all  Vietnam) with addition of superplasticizer Ace 388 BASF (Germany) and polypropylene fine fibers Mega Mesh (Malaysia). As for the fine filler, quartz sand from the Lo river (Vietnam) was used. Methods: the compressive strength of high performance finegrained concrete was determined in accordance with the requirements of GOST 101802012 “Concretes. Methods of strength determination by control samples”; the initial composition of the concrete mix was calculated using the absolute volume method. Results: the paper presents results of mathematical modeling of the effect of raw materials on the compressive strength of high performance finegrained concrete at 28 days of normal hardening. First and second order regression equations for the dependence of the compressive strength on the ratio of raw materials x2 () and x3 () and also the image of the surface expression and the contour of the objective function for these regression equations were obtained. Conclusions: The maximum value of compressive strength of high performance finegrained concrete at 28 days of age, evaluated by using the computer program Maple 13 in the regression equation of the second order, is R = 75.85 MPa at = 0.854 and = 0.324.
DOI: 10.22227/19970935.2017.9.9991009

Bondarev Aleksey Borisovich 
Joint Stock Company "Matrosov Mine" (JSC "RiM")
engineer on metal constructions, Joint Stock Company, Joint Stock Company "Matrosov Mine" (JSC "RiM"), 12 Proletarskaya str., Magadan, 685000, Russian Federation.

Yugov Anatoliy Mikhaylovich 
Donbas National Academy of Civil Engineering and Architecture (DonNACEA)
Doctor of Technical Sciences, Professor, Head of Construction Engineering and Management Department, Donbas National Academy of Civil Engineering and Architecture (DonNACEA), 2 Derzhavina str., Makiivka, Donetsk obl., 86123, Ukraine.

Garanzha Igor’ Mikhaylovich 
Moscow State University of Civil Engineering (National Research University)
Candidate of Technical Sciences, Associate Professor, Department of Metal Structures, Moscow State University of Civil Engineering (National Research University), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Shchukina Liliya Sergeevna 
Donbas National Academy of Civil Engineering and Architecture (DonNACEA)
graduate student, Construction Engineering and Management Department., Donbas National Academy of Civil Engineering and Architecture (DonNACEA), 2 Derzhavina str., Makiivka, Donetsk obl., 86123, Ukraine.
Subject: In this article we review and analyze structural forms and methods for accounting for deviations in metal roof structures. The article also reviews and analyzes previously performed works and methods for accounting for deviations in the design of metal structures. Research objectives: analysis of deviation values and mounting stressstrain state (MSSS) of the transverse diaphragm of a singlechord hingerod metal shell. A comparative calculation of deviations and calculation results analysis was made on the example of a transverse diaphragm of a singlechord hingerod metal shell of the roof structure for different technological assemblymounting schemes: from the supports to the arch center, and vice versa, from the arch center to its supports. Materials and methods: geometrical method for determining deviations is implemented in the the author’s computer program  computing complex of dimensional analysis (CP CCDA); method of finite elements (FEM) is used for determining mounting stressstrain state and is implemented in SCAD 11.5. Results: The calculation and analysis of the mounting stressstrain state (MSSS) of the diaphragm was performed. Out of two assembly schemes considered in the paper we recommend the second technological scheme of assemblymounting and also possible ways of compensation for the assembly deviations in the end diaphragm of the cylindrical roof structure of the hangar. We suggest possible options for modeling deviations of individual members of rod systems for several types of profiles and we propose possible cross sections of diaphragms of arched roof structures. Conclusions: the methodology for determining the installation deviations and the method for determining the MSSS, proposed in this article, can be used to determine deviations in a variety of largespan hingerod metal structures.
DOI: 10.22227/19970935.2017.11.12481260

Sinelnikov Aleksey Sergeevich 
Saint Petersburg State Polytechnical University (SPbGPU)
postgraduate student, Department of Unique Buildings and Structures Engineering, Saint Petersburg State Polytechnical University (SPbGPU), 29 Polytechnicheskaya, st., St.Petersburg, 195251, Russian Federation;
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Orlova Anna Vladimirovna 
Saint Petersburg State Polytechnical University (SPbGPU)
student, Department of Unique Buildings and Structures Engineering, Saint Petersburg State Polytechnical University (SPbGPU), 29 Polytechnicheskaya, st., St.Petersburg, 195251, Russian Federation;
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This summary report is based on the experimental and numerical research of thinwalled crosssection’s compression resistance carried out in St. Petersburg State Polytechnical University. Current situation on the Russian market concerning the usage of coldformed thin walled crosssections is aimed at finding out a base foundation to start up a stipulation of the elements under discussion in the building industry. Some questions about the compression resistance of such crosssections were raised at different conferences by scientific community and such companies as Arsenal ST, Baltprofile (Russia) and Rautaruukki Oyj (Finland). In this field a number of Doctoral theses have been defended during recent years in Russia (A.R. Tusnin, G.I. Belyy, I.V. Astakhov, D.V. Kuz'menko). Steel galvanized Cand Uprofiles and thermoprofiles are the types of thinwalled crosssections are normally used in small houses construction. Thermoprofiles have slots in webs that decrease the thermal flow through the web, but have negative effect on strength of the profiles. Reticularstretched thermoprofile is a new type of thinwalled crosssections that found its place on Russian market. These profiles were an object of the research. The carried out investigations included tests to prove the compression resistance of the thinwalled crosssections. The compression tests as a result showed the behavior of stud’s profile under critical load. The specimen was compressed under various loads and deformation was recorded. In order to get buckling force a loaddeformation diagram was plotted and analyzed. Analytical modeling of thinwalled crosssections was done with contemporary analysis software (SCAD Office) using finite element method (FEM). During the modeling process the thinwalled profile based on shelland barelements were created and buckling analysis task showed good results.
DOI: 10.22227/19970935.2013.12.4154
References
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 Gordeeva A.O., Vatin N.I. Raschetnaya konechnoelementnaya model' kholodnognutogo perforirovannogo tonkostennogo sterzhnya v programmnovychislitel'nom komplekse SCADOffice. Inzhenerno stroitel'nyy zhurnal [Calculation Finite Element Model of a Coldformed Perforated Thinwall Shank in Programming and Computing Suite SCADOffice]. 2011, no. 3, pp. 36—46.
 Zhmarin E.N. Mezhdunarodnaya assotsiatsiya legkogo stal'nogo stroitel'stva [International Assosiation of Light Steel Engineering]. Stroitel'stvo unikal'nykh zdaniy i sooruzheniy [Construction of Unique Buildings and Structures]. 2012, no. 2, pp. 27—30.
 Yurchenko V.V. Proektirovanie karkasov zdaniy iz tonkostennykh kholodnognutykh profiley v srede «SCADOffice» [Buildings Framework Modellng Made of Thinwall Coldformed Profiles in SCADOffice]. Inzhenerno stroitel'nyy zhurnal [Engineering Construction Journal]. 2010, no. 8, pp. 38—46.
 Vatin N.I., Popova E.N. Termoprofil' v legkikh stal'nykh stroitel'nykh konstruktsiyakh [Thermal Profile in Light Steel Building Structures]. Saint Petersburg, SPbGPU Publ., 2006, 63 p.
 Kolesov A.I., Lapshin A.A., Valov A.V. Sovremennye metody issledovaniya tonkostennykh stal'nykh konstruktsiy [Modern Methods of Examining ThinWall Steel Structures]. Privolzhskiy nauchnyy zhurnal [Volga Scientific Journal]. 2007, no. 1, pp. 28—33.
 Kretinin A.N., Krylov I.I. Osobennosti raboty tonkostennoy balki iz gnutykh otsinkovannykh profiley [Operation Features of Thinwall Beam Made of RollFormed ZinkCoated Sections]. Izvestiya vysshikh uchebnykh zavedeniy. Stroitel'stvo [News of Institutions of Higher Education. Engineering]. 2008, no. 6, pp. 1—11.
 Hartmut Pasternak and John Ermopoulos. Design of Steel Frames with Slender Jointpanels. Journal of Constructional Steel Research. 1995, vol. 35, no. 2, pp. 165—187.
 Kesti J. Local and Distortional Buckling of Perforated Steel Wall Studs. Dissertation for the Degree of Doctor of Science in Technology. Espoo, 2000, 101 p. + app.19 p.
 Markku Heinisuo. Comparative Study of Multiple Criteria Decision Making Methods for Building Design. Advanced Engineering Informatics. October 2012, vol. 26, no. 4, pp. 716—726.
 Tusnin A.R. Chislennyy raschet konstruktsiy iz tonkostennykh sterzhney otkrytogo profilya [Numerical Calculations of the Structures Made of ThinWall Shanks of Open Profile]. Moscow, ASV Publ., 2009, 143 p.
 Tusnin A.R. Osobennosti chislennogo rascheta konstruktsiy iz tonkostennykh sterzhney otkrytogo profilya [Features of Numerical Calculations of the Structures Made of ThinWall Shanks of Open Profile]. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering]. 2010, no. 11, pp. 60—63.
 Perel'muter A.V., Slivker V.I. Raschetnye modeli sooruzheniy i vozmozhnost' ikh analiza [Calculation Models of Structures and Possibilities of Their Analysis]. Moscow, DMK Press Publ., 2002, 618 p.
 Slivker V.I. Stroitel'naya mekhanika [Structural Mechanics]. Moscow, ASV Publ., 2005, 736 p.
 Perel'muter A.V., Kriksunov E.Z., Karpilovskiy V.S., Malyarenko A.A. Integrirovannaya sistema dlya rascheta i proektirovaniya nesushchikh konstruktsiy zdaniy i sooruzheniy SCAD Office [Integrated System for Calculation and Design of the Bearing Structuresnof Buildings in SCAD Office]. Novaya versiya, novye vozmozhnosti. Inzhenerno stroitel'nyy zhurnal [New Version, New Possibilities. Engineering Construction Journal]. 2009, no. 2, pp. 10—12.
 Kriksunov E.Z., Perel'muter A.V., Yurchenko V.V. Proektirovanie flantsevykh soedineniy ramnykh uzlov [Design of Flanfe Seams of Frame Nods]. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering]. 2010, no. 2, pp. 33—37.
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 Pekoz T. Development of a Unified Approach to the Design of Coldformed Steel Members. Research Report CF 871, American Iron and Steel Institute, 1987.
 Hancock G.J. Light Gauge Construction. Progress in Structural Engineering and Materials. 1997, pp. 25—26.
 Gioncu V. General theory of coupled instabilities. ThinWalled Structures, 1994, p. 19(2—4).
 Belyy G.I., Astakhov I.V. Issledovanie vliyaniya razlichnykh faktorov na prostranstvennuyu ustoychivost' sterzhnevykh elementov iz kholodnognutykh profiley [Research on the Influence of Various Factors on Spatial Stability of Axial Elements Made of ColdFormed Profiles]. Aktual'nye problemy sovremennogo stroitel'stva: Doklady 68y nauchnoy konferentsii professorov, prepodavateley, nauchnykh rabotnikov, inzhenerov i aspirantov universiteta [Current Issues of Contemporary Engineering: Reports of the 68th Scientific Conference of the Professors, Lecturers, Research Workers, Engineers and Postgraduate Students of the University]. Saint Petersburg, SPbGASU Publ., 2011, p. 27.
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Pugin Konstantin Georgievich 
Perm National Research Polytechnic University (PNRPU)
Candidate of Technical Sciences, Associate Professor, Department of Automobiles and Production Machines, Perm National Research Polytechnic University (PNRPU), 29 Komsomol’skiy prospekt, Perm, 614990, Russian Federation;
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Vaysman Yakov Iosifovich 
Perm National Research Polytechnic University (PNRPU)
Doctor of Medical Sciences, Professor, Scientific Supervisor, Department of Environmental Protection, Perm National Research Polytechnic University (PNRPU), 29 Komsomol’skiy prospekt, Perm, 614990, Russian Federation;
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Boyarshinov Mikhail Gennad’evich 
Perm National Research Polytechnic University (PNRPU)
Doctor of Technical Sciences, Professor, Department of Automobiles and Production Machines, Perm National Research Polytechnic University (PNRPU), 29 Komsomol’skiy prospekt, Perm, 614990, Russian Federation;
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At the present time industrial waste is considered to be an alternative to primary natural resources when producing construction materials and products. The use of industrial waste in the construction branch allows reducing ecological load on the environment and population as a result of reducing the amount of unrecyclable waste and reducing the use of primary natural resources. Though when involving waste products as raw material in the preparation of building materials there occur environmental risks of anthropogenic impact increase on the environment. These risks are related to possible emission of heavy metals from construction materials in use. The article describes a tool which allows predicting this issue, depending on the acidity of the medium, the residence time of the material in the environment. The experimental data obtained in determining the migration activity of metals from cement concretes to aqueous solutions served as the basis for the mathematical model. The proposed model allows us to make a prediction of anthropogenic impact on the environment and commensurate this impact with the possibility of assimilation of the environment area where the building materials are applied. This will allow conducting an effective assessment of the created and applied technologies of waste disposal, taking into account the operating conditions of the materials produced.
DOI: 10.22227/19970935.2016.1.105117
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Khayrullin Rustam Zinnatullovich 
Moscow State University of Civil Engineering (MGSU)
Doctor of Physical and Mathematical Sciences, Professor, Department of Higher Mathematics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe Shosse, Moscow, 129337, Russian Federation;
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The problem of calculation of an optimal route is important for companies, including civil engineering companies, wishing to reduce transportation costs of cargoes delivery. The existing regional distribution network of automobile roads is characterized, as a rule, by an extensive network of roads of varying quality, traffic capacity, large distances between consignors and consignees, small warehouse areas, disabled vehicle fleet. In this way companies seek to increased profits by means of solving complex problems such as: reducing the costs of transportation and storage of cargoes, reducing the number of vehicles fleet, using optimal vehicles schedule. Note that in this paper, the term optimal is not used in the strict mathematical sense (optimal  which can’t be improved), but as an established business application in a term describing the effectiveness and efficiency of the process of cost reduction. Common formulation of cargoes delivery optimization problem from consignor to consignee by motor transport is offered. Mathematical models and methods of cargoes delivery on an extensive network of roads are provided. The method consists in gradual solving of three problems: the problem of dividing the region into zones detour in one trip, the traveling salesman problem and the problem of forming a daily job for each unit of vehicle. The software for solving this problem is developed. The software is based on the complex of developed algorithms and standard software tools. The software permits: to calculate the optimal (in terms of transport costs and time costs) routes, schedules and delivery schemes of cargoes from consignor to consignee; to perform the optimal choice of consignor for each consignee by means of calculation of the minimum total cost of the storage and cost of its delivery; to ensure optimal filling of order in time and to ensure a full loading of cargo motor vehicles. Some results of software implementation are described.
DOI: 10.22227/19970935.2014.7.184191
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Kitaytseva Elena Khalilovna 
Moscow State University of Civil Engineering (National Research University) (MGSU)
Candidate of Technical Sciences, Associate Professor, Information Systems, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Konstantinova Daria Arkadyevna 
Moscow State University of Civil Engineering (National Research University) (MGSU)
postgraduate student, Information Systems, Technologies and Automation in Construction Department, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
Solar thermal system are its constituent elements with their connection between each other, thermal processes within them and also input/output data. The conjunction of external and internal factors determines the efficiency of solar thermal system. No excess heat as well as its deficiency displays us high level efficiency of system. The initial data for modeling of solar thermal systems functioning are dissimilar. Parameters of system’s equipment are constant. Solar radiation amount and water consumption are variable data. The more close initial data to reality, the more definite simulated result is. The main problem is in unpredictability of water consumption by the reason of daily regime and requirement of each user. In this way user is the most instable element of the system. In this study the input data for mathematical modeling of solar thermal systems was analyzed. The climatic databases and standard specifications of hot water demand were also analyzed. The operability estimation method for solar thermal systems with variable input data was offered. The extent of suitability of any solar thermal system can be defined by certain characteristic. The value of this characteristic displays energy accumulation process.
DOI: 10.22227/19970935.2017.6.687691