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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">mgssuvest</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник МГСУ</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik MGSU</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1997-0935</issn><issn pub-type="epub">2304-6600</issn><publisher><publisher-name>Moscow State University of Civil Engineering (National Research University) (MGSU)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22227/1997-0935.2024.8.1274-1284</article-id><article-id custom-type="elpub" pub-id-type="custom">mgssuvest-336</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Проектирование и конструирование строительных систем. Строительная механика. Основания и фундаменты, подземные сооружения</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Construction system design and layout planning. Construction mechanics. Bases and foundations, underground structures</subject></subj-group></article-categories><title-group><article-title>Анализ надежности конструкций стальных покрытий с использованием теории свидетельств</article-title><trans-title-group xml:lang="en"><trans-title>Structural reliability analysis of steel structural covering based on the theory of evidence</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7083-7963</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соловьев</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Solov’ev</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Александрович Соловьев — кандидат технических наук, доцент, доцент кафедры промышленного и гражданского строительства, Инженерно-строительный институт</p><p>160000 г. Вологда, ул. Ленина, д. 15</p><p>РИНЦ AuthorID: 821778, Scopus: 57215081781, ResearcherID: AAJ-1708-2020</p></bio><bio xml:lang="en"><p>Sergey A. Solov’ev — Сandidate of Technical Sciences, Associate Professor, Associate Professor in the Department of Industrial and Civil Construction, Institute of Civil Engineering</p><p>15 Lenina st., Vologda, 160000</p><p>RSCI AuthorID: 821778, Scopus: 57215081781, ResearcherID: AAJ-1708-2020</p></bio><email xlink:type="simple">solovevsa@vogu35.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7034-8606</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иньков</surname><given-names>А. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>In’kov</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Эдуардович Иньков — аспирант, преподаватель кафедры промышленного и гражданского строительства, Инженерно-строительный институт</p><p>160000 г. Вологда, ул. Ленина, д. 15</p><p>РИНЦ AuthorID: 1148205, Scopus: 58286195500, ResearcherID: AGO-6637-2022</p></bio><bio xml:lang="en"><p>Aleksandr E. In’kov — postgraduate student, lecturer in the Department of Industrial and Civil Construction, Institute of Civil Engineering</p><p>15 Lenina st., Vologda, 160000</p><p>RSCI AuthorID: 1148205, Scopus: 58286195500, ResearcherID: AGO-6637-2022</p></bio><email xlink:type="simple">inkovae@vogu35.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5285-5882</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соловьева</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Solov’eva</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анастасия Андреевна Соловьева — аспирант, старший преподаватель кафедры промышленного и гражданского строительства, Инженерно-строительный институт</p><p>160000, г. Вологда, ул. Ленина, д. 15</p><p>РИНЦ AuthorID: 1090512, Scopus: 57223210877, ResearcherID: ABG-1982-2021</p></bio><bio xml:lang="en"><p>Anastasiya A. Solov’eva — postgraduate student, senior lecturer in the Department of Industrial and Civil Construction, Institute of Civil Engineering</p><p>15 Lenina st., Vologda, 160000</p><p>RSCI AuthorID: 1090512, Scopus: 57223210877, ResearcherID: ABG-1982-2021</p></bio><email xlink:type="simple">solovevaaa@vogu35.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5679-9542</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Александрович Смирнов — кандидат технических наук, доцент кафедры строительной и теоретической механики</p><p>129337, г. Москва, Ярославское шоссе, д. 26</p><p>РИНЦ AuthorID: 635890, Scopus: 57200044361, ResearcherID: N-6846-2016</p></bio><bio xml:lang="en"><p>Vladimir A. Smirnov — Candidate of Technical Sciences, Associate Professor of the Department of Structural and Technical Mechanics</p><p>26 Yaroslavskoye Shosse, Moscow, 129337</p><p>RSCI AuthorID: 635890, Scopus: 57200044361, ResearcherID: N-6846-2016</p></bio><email xlink:type="simple">belohvost@list.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Вологодский государственный университет (ВоГУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Vologda State University (VSU)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский Московский государственный строительный университет (НИУ МГСУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow State University of Civil Engineering (National Research University) (MGSU)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>30</day><month>08</month><year>2024</year></pub-date><volume>19</volume><issue>8</issue><fpage>1274</fpage><lpage>1284</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Соловьев С.А., Иньков А.Э., Соловьева А.А., Смирнов В.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Соловьев С.А., Иньков А.Э., Соловьева А.А., Смирнов В.А.</copyright-holder><copyright-holder xml:lang="en">Solov’ev S.A., In’kov A.E., Solov’eva A.A., Smirnov V.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.vestnikmgsu.ru/jour/article/view/336">https://www.vestnikmgsu.ru/jour/article/view/336</self-uri><abstract><sec><title>Введение</title><p>Введение. Количественная оценка уровня надежности и безопасности конструкционных решений является актуальной научно-технической проблемой. Мерой надежности в таком случае может выступать вероятность отказа несущего элемента конструкции. В практических задачах оценки и анализа надежности строительных конструкций данные о случайных величинах могут быть получены в интервальной форме (качественная неопределенность), в то время как классические методы анализа надежности не позволяют произвести оценку надежности при наличии таких данных. Недостаток статистических данных (количественная неопределенность) также присутствует в практических задачах анализа надежности.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Рассмотрено использование теории свидетельств как эффективного инструмента для анализа надежности конструкций стальных покрытий в задачах с интервальной неопределенностью статистических данных.</p></sec><sec><title>Результаты</title><p>Результаты. Приведена графическая интерпретация алгоритма анализа надежности, которая позволяет наглядно и оперативно получить оценку вероятности безотказной работы элемента покрытия, а также снизить допустимую нагрузку на элемент до требуемого уровня надежности. Исследованы двухмерные и трехмерные модели для анализа надежности стержня стальной фермы по критерию устойчивости.</p></sec><sec><title>Выводы</title><p>Выводы. Теория свидетельств дает возможность эффективно моделировать различные источники неопределенностей в практических инженерных задачах. При ограниченной информации можно получить представление о количественном выражении уровня надежности по ее нижней оценке, которую можно увеличить за счет усиления элемента, более детального вероятностного анализа или ограничения эксплуатационной нагрузки на элемент. Учитывая большее количество недетерминированных величин в расчете, инженер получает более достоверное и осторожное решение. При учете площади поперечного сечения как случайной величины надежность стержня фермы по расчету на устойчивость оказалась на 23 % меньше (нижняя граница надежности), чем в аналогичном расчете с детерминированным значением.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Quantitative assessment of the structural reliability and safety level for structural solutions is an actual scientific and technical problem. The measure of reliability in this case can be the failure probability of a structural element. In practical problems of assessment and analysis of structural reliability, data on random variables can be obtained in the interval form (qualitative uncertainty), while the classic methods of reliability analysis do not allow to estimate reliability in the presence of such data. Lack of statistical data (quantitative uncertainty) is also present in practical tasks of reliability analysis.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The paper considers the use of the theory of evidence as an effective tool for reliability analysis of steel span structures in problems with interval uncertainty of statistical data.</p></sec><sec><title>Results</title><p>Results. The graphical interpretation of the reliability analysis algorithm is given. It allows to obtain clearly and operatively an estimate of the failure probability of the structural element, as well as to reduce the permissible load on the element to the required reliability level. Two-dimensional and three-dimensional models are considered for analyzing the reliability of a steel truss bar according to the buckling criterion.</p></sec><sec><title>Conclusions</title><p>Conclusions. The theory of evidence allows effective modelling of various sources of uncertainties in practical engineering problems. Thus, with limited data, it is possible to get an idea of the quantitative expression of the reliability level by its lower bound, which can be increased by strengthening the element, more detailed probabilistic analysis or limiting the operational load on the structural element. By considering more non-deterministic quantities in the design, the engineer obtains a more cautious decision. When considering the cross-sectional area as a random variable, the reliability of the truss bar on the buckling was 23 % lower (lower reliability bound) than in a similar calculation with a deterministic value.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>теория свидетельств</kwd><kwd>надежность</kwd><kwd>ферма</kwd><kwd>интервальные данные</kwd><kwd>безопасность</kwd><kwd>вероятность отказа</kwd></kwd-group><kwd-group xml:lang="en"><kwd>the theory of evidence</kwd><kwd>reliability</kwd><kwd>truss</kwd><kwd>interval data</kwd><kwd>safety</kwd><kwd>failure probability</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда № 23-79-01035. URL: https://rscf.ru/project/23-79-01035/</funding-statement><funding-statement xml:lang="en">The research was funded by Russian Science Foundation (RSF) No. 23-79-01035. 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