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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Structural Mechanics of Engineering Constructions and Buildings</journal-id><journal-title-group><journal-title xml:lang="en">Structural Mechanics of Engineering Constructions and Buildings</journal-title><trans-title-group xml:lang="ru"><trans-title>Строительная механика инженерных конструкций и сооружений</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1815-5235</issn><issn publication-format="electronic">2587-8700</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">23958</article-id><article-id pub-id-type="doi">10.22363/1815-5235-2020-16-3-193-202</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Analysis and design of building structures</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Расчет и проектирование строительных конструкций</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Damage analysis and assessment of the impact of damage on the operation of supporting structures of oil refining tube furnaces</article-title><trans-title-group xml:lang="ru"><trans-title>Анализ повреждаемости и оценка влияния повреждений на работу несущих конструкций нефтеперерабатывающих трубчатых печей</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Golikov</surname><given-names>Alexander V.</given-names></name><name xml:lang="ru"><surname>Голиков</surname><given-names>Александр Владимирович</given-names></name></name-alternatives><bio xml:lang="en"><p>Cand. Tech. Sci., senior lecturer, Department of Building Structures, Foundations and Reliability of Structures</p></bio><bio xml:lang="ru"><p>кандидат технических наук, доцент, кафедра строительных конструкций, оснований и надежности сооружений</p></bio><email>alexandr_golikov@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Subbotin</surname><given-names>Dmitry I.</given-names></name><name xml:lang="ru"><surname>Субботин</surname><given-names>Дмитрий Игоревич</given-names></name></name-alternatives><bio xml:lang="en"><p>master student, Department of Building Structures, Foundations and Reliability of Structures</p></bio><bio xml:lang="ru"><p>магистрант, кафедра строительных конструкций, оснований и надежности сооружений</p></bio><email>alexandr_golikov@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Volgograd State Technical University</institution></aff><aff><institution xml:lang="ru">Волгоградский государственный технический университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2020-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2020</year></pub-date><volume>16</volume><issue>3</issue><issue-title xml:lang="en">VOL 16, NO3 (2020)</issue-title><issue-title xml:lang="ru">ТОМ 16, №3 (2020)</issue-title><fpage>193</fpage><lpage>202</lpage><history><date date-type="received" iso-8601-date="2020-06-12"><day>12</day><month>06</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2020, Golikov A.V., Subbotin D.I.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2020, Голиков А.В., Субботин Д.И.</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="en">Golikov A.V., Subbotin D.I.</copyright-holder><copyright-holder xml:lang="ru">Голиков А.В., Субботин Д.И.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/structural-mechanics/article/view/23958">https://journals.rudn.ru/structural-mechanics/article/view/23958</self-uri><abstract xml:lang="en"><p>Relevance. Due to the widespread use in practice, tubular furnaces were chosen as the object of study of this work. The article provides an analysis of damage to the supporting structures of oil refining tubular furnaces. The causes of damage and the physical nature of the development of damage are established. According to the results of field surveys, it was found that about 10% of the furnaces are operated with damage in the form of significant curvature of the supporting structures that developed as a result of the explosion of the gas-air mixture and the technological product inside the furnace space. The aim of the work is to analyze the damage and assess the impact of damage on the operation of the supporting structures of furnaces. Methods. The main research results were obtained by static numerical analysis of spatial models of furnace frameworks in the LIRA-SAPR software package. This complex belongs to the class of software products that implement the finite element method. Results. According to the results of calculating a series of models of structures, the effect of damage on the operation of the supporting structures of the furnace is determined. Based on the analysis of calculation data for models of tube furnaces with damage and comparison of calculation results for furnace models with structural damage identified during the survey, ways to optimize the design decisions of an industrial furnace are determined. Studies have shown the need to improve the design of tube furnaces in the direction of improving technology and improving the structural form of the supporting frame of the furnace.</p></abstract><trans-abstract xml:lang="ru"><p>Актуальность. По причине широкого распространения на практике в качестве объекта исследования данной работы выбраны печи трубчатой конструкции. В статье приведен анализ повреждений несущих конструкций нефтеперерабатывающих трубчатых печей. Установлены причины возникновения повреждений и физическая природа их развития. По результатам натурных обследований установлено, что около 10 % печей эксплуатируется с повреждениями в виде значительных искривлений несущих конструкций, которые развились в результате взрыва газовоздушной смеси и технологического продукта внутри пространства печи. Целями исследования являются анализ повреждаемости и оценка влияния повреждений на работу несущих конструкций печей. Методы. Основные результаты получены путем статического численного анализа пространственных моделей каркасов печей в программном комплексе ЛИРА-САПР. Данный комплекс относится к классу программных продуктов, реализующих метод конечных элементов. Результаты. Расчет серии моделей сооружений позволил определить влияние повреждений на работу несущих конструкций печи. На основе анализа данных расчета моделей трубчатых печей с повреждениями и сопоставления результатов расчета моделей печей с повреждениями конструкций, выявленными при проведении обследований, предложены пути оптимизации конструктивных решений промышленной печи. Проведенное исследование показало необходимость совершенствования конструкции трубчатых печей в направлении модернизации технологии и конструктивной формы несущего каркаса печи.</p></trans-abstract><kwd-group xml:lang="en"><kwd>industrial furnaces</kwd><kwd>examination</kwd><kwd>damage</kwd><kwd>deformations</kwd><kwd>stress-strain state</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>промышленные печи</kwd><kwd>обследование</kwd><kwd>повреждения</kwd><kwd>деформации</kwd><kwd>напряженно-деформированное состояние</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Timoshenko S.P., Gere J.M. 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