RUDN Journal of Engineering ResearchRUDN Journal of Engineering Research2312-81432312-8151Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)1599410.22363/2312-8143-2017-18-1-7-13Research ArticleCONSTRUCTIVE DECISIONS OF STEEL BEAMS MADE OF THIN-WALLED COLD-FORMED PROFILESFrolovskayaAlexandra V<p>PhD (in Technical Sciences), Associate Professor of Departament “Building structures and managed systems”</p>Tereshkova81@mail.ruShambinaSvetlana L<p>PhD (in Technical Sciences), Associate Professor of Department of Architecture and Construction</p>shambina_sl@mail.ruPetrovaJulia M<p>graduate student of the Department “Building structures and managed systems”</p>yevtifeva@mail.ruSiberian Federal UniversityEngineering Academy Peoples’ Friendship University of Russia1512201718171313052017Copyright © 2017, Frolovskaya A.V., Shambina S.L., Petrova J.M.2017<p>The article considers the worked out optimal variant of a constructive design for a steel covering beam having a compound cross-section made of thin-walled cold-formed sections. Numerical studies have been carried out for various options of beams taking into account reduction of cross-section. Tests were made of the created an optimal variant of a beam in full size.</p>light steel thin-walled structurescold-formed profilessteel beam coating constructive solutionsлегкие стальные тонкостенные конструкциихолодногнутые профилистальная балка покрытияконструктивные решения[Endzhievsky L.V, Krylov I.I., Kretinin A.N., Tereshkova A.V. Ograzhdaiushchie i nesushchie stroitelnye konstruktcii iz stalnykh tonkostennykh profilei: monografiia. Krasnoiarsk: Sibirskii federalnyi universitet, 2010. 281 p.][Frolovskaya A.V., Petrova Iu.M., Khimchenko N.N. Issledovanie nesushcheii sposobnosti elementov stropilnoi fermy iz tonkostennykh otcinkovannykh profilei. Molodaya mysl: nayka, tekhnologii, innovatcii: materialy VIII (XIV) Vserossiiskoi nauchnotekhnicheskoi konferentcii. Bratsk: Izdvo BrGU, 2016. Pp. 35—39.][EN 199313:2006. Eurocode 3: Design of steel structures. Part 13: General rules. Supplementary rules for coldformed members and sheeting. Brussels: CEN, 2006. 134 p.][AISI S1002007. North American Specification for the Design of ColdFormed Steel Structural Members. Washington: American Iron and Steel Institute, 2007. 198 p.]