Structural Mechanics of Engineering Constructions and BuildingsStructural Mechanics of Engineering Constructions and Buildings1815-52352587-8700Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)2141110.22363/1815-5235-2019-15-3-193-200Research ArticleThe results of computer analysis of the wind load acting on the set of rolled profilesVeselevYury A.<p>Cand. Tech. Sci., Associate Professor, Metal, Wooden and Plastic Designs Department</p>kmcmishka@rambler.ruKarabutovMikhail S.<p>student, Metal, Wooden and Plastic Designs Department</p>kmcmishka@rambler.ruDon State Technical University1512201915319320008072019Copyright © 2019, Veselev Y.A., Karabutov M.S.2019<p>The aim of the research is to numerically determine the effect of wind loads on the roof of the rolled profiles of the MIC-120 system. Methods. There were made some calculations in this article of wind load, acting on rolled metal thin-sheet profiles arch and a comparison of computer modeling and buildings requirement such as Building Rules Loads and Actions results. The research was carried out by means of modeling of a virtual wind tunnel with the placement to it a metal thin-sheet profiles arch in consideration of different wind actions such as acting on the archs butt end (along a generatrix), as well as athwart on the arch and angularly on it with the archs width change from 12 to 24 m. The arch modeling as well as the virtual wind tunnel modeling was based on the COSMOSFloWorks software package by means of the method, stated in the previous publications [2; 11]. The theoretical and methodological basis of the research is the Navier - Stokes equation and the equation of the condition of the fluid mediums components. Results. The results are, first of all, the calculation of the wind pressure on the arch depending on the trajectory, wind speed in different regions and directions of wind flow, secondly, the comparison of the wind pressure, getting with the help of computer modeling with Building Rules 20.13330.2011 Loads and Actions and, finally, matching of results of wind pressure for a plain and ribbed arch with equal geometrical parameters, getting by computer modeling. In compliance with the generated calculations there was drawn a conclusion, that the standard pressure according on Building Rules does not change from arch span, but results of the computer modeling show us a change of the wind pressure from the archs span.</p>virtual wind tunnelcolor indicationwind loadair zonescomputer modellingвиртуальная аэродинамическая трубацветовая индикацияветровая нагрузкавоздушные зоныкомпьютерное моделирование[Aljamovskij A.A., Sobachkin A.A., Odintsov E.V., Kharitonovich A.I. (2005). 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Saint Petersburg: the Baltic State University. (In Russ.)][Veselev J.A., Karabutov M.S. (2012). Sravnenie povedeniya svoda iz val'covannyh profilej pri zagruzhenii vetrovoj nagruzkoj po normam i nagruzkoj, poluchennoj komp'yuternym modelirovaniem [Comparison of behaviour of the arch from a metal thin-sheet profiles at loading wind loading on norms and the loading received by computer modelling]. Structural Mechanics of Engineering Constructions and Buildings, (1), 74-81. (In Russ.)][Veselev J.A., Karabutov M.S. (2012). Eksperimental'noe izuchenie povedeniya svoda iz val'covannyh metallicheskih tonkostennyh profilej pri dejstvii vetra i sravnenie poluchennyh rezul'tatov s rezul'tatami komp'yuternogo modelirovaniya obduvaniya svoda vetrom [Experimental research of behavior of shell made of rolled metal thinsheet profiles subjected to the wind action and comparison of experimental results with the results of computer modeling of wind pressure]. 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