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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">construction</journal-id><journal-title-group><journal-title xml:lang="ru">Строительство и реконструкция</journal-title><trans-title-group xml:lang="en"><trans-title>Building and Reconstruction</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7416</issn><publisher><publisher-name>Орловский государственный университет имени И.С. Тургенева</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33979/2073-7416-2024-112-2-74-82</article-id><article-id custom-type="elpub" pub-id-type="custom">construction-722</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>БЕЗОПАСНОСТЬ ЗДАНИЙ И СООРУЖЕНИЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BUILDING AND STRUCTURE SAFETY</subject></subj-group></article-categories><title-group><article-title>Вероятностный анализ надежности стержней стальных ферм при неполной статистической информации</article-title><trans-title-group xml:lang="en"><trans-title>Reliability analysis of steel truss bars with imprecise statistical data</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><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>Soloveva</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Соловьева Анастасия Андреевна - аспирант, преподаватель кафедры промышленного и гражданского строительства,</p><p>г. Вологда</p></bio><bio xml:lang="en"><p>Soloveva Anastasia A. - post-graduate student, lecturer the industrial and civil engineering department,</p><p>Vologda</p></bio><email xlink:type="simple">solovevaaa@vogu35.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><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>Solovev</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Соловьев Сергей Александрович - кандидат технических наук, доцент кафедры промышленного и гражданского строительства,</p><p>г. Вологда</p></bio><bio xml:lang="en"><p>Solovev Sergey A. - candidate of technical science, associated professor of the industrial and civil engineering department,</p><p>Vologda </p></bio><email xlink:type="simple">solovevsa@vogu35.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Вологодский государственный университет»</institution></aff><aff xml:lang="en"><institution>Vologda State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>07</day><month>05</month><year>2024</year></pub-date><volume>0</volume><issue>2</issue><fpage>74</fpage><lpage>82</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Соловьева А.А., Соловьев С.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Соловьева А.А., Соловьев С.А.</copyright-holder><copyright-holder xml:lang="en">Soloveva A.A., Solovev S.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://construction.elpub.ru/jour/article/view/722">https://construction.elpub.ru/jour/article/view/722</self-uri><abstract><p>В статье представлен вероятностный подход к анализу надежности стержней стальных ферм при неполной статистической информации. Проиллюстрирован подход к восстановлению плотности вероятностей случайной величины методом ядерной оценки плотности при малом количестве испытаний/измерений случайной величины. Для повышения достоверности расчета оценка параметров плотности распределения представлена в интервальной форме, что позволяет сформировать р-блок для моделируемой случайной величины. Оценка вероятности безотказной работы позволят в количественной форме получить представление об уровне безопасности стальных ферм, выявить наиболее ненадежные фермы для мониторинга их технического состояния или рассчитать эффект от усиления фермы по критерию надежности. В представленном подходе вероятность безотказной работы оценивается в виде интервала значений. Если нижняя граница интервала не позволяет сделать вывод об уровне безопасности эксплуатации фермы, то он может быть повышен путем получения дополнительной статистической информации или путем усиления фермы или снижения допустимой нагрузки на нее.</p></abstract><trans-abstract xml:lang="en"><p>The article describes the probabilistic approach of reliability analysis for steel truss bars with imprecise statistical data. An approach to recovery the probability density of a random variable by the kernel density estimation method is illustrated for a small number of tests/measurements cases. The estimation of the distribution density parameters is presented in an interval form, which makes it possible to form a p-box for the random variable. Evaluation of the probability of non-failure allow to get a quantitative assessment for the safety of steel trusses, to identify the most unreliable trusses for monitoring their technical condition or to calculate the effect of strengthening the truss according to the reliability criterion. The probability of non-failure is estimated in the interval form. If the lower limit of the interval does not allow to get a conclusion about the truss safety level, then it can be increased by obtaining additional statistical data or by strengthening the truss or reducing the permissible load.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>надежность</kwd><kwd>вероятностное проектирование</kwd><kwd>вероятность отказа</kwd><kwd>ферма</kwd><kwd>неопределенность</kwd><kwd>безопасность</kwd><kwd>ядерная оценка плотности</kwd></kwd-group><kwd-group xml:lang="en"><kwd>reliability</kwd><kwd>probabilistic design</kwd><kwd>probability of failure</kwd><kwd>truss</kwd><kwd>uncertainty</kwd><kwd>safety</kwd><kwd>kernel density estimate</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Pidong W., Zhang J., Hao Z., Jiwei Q. A new structural reliability index based on uncertainty theory // Chinese Journal of Aeronautics. 2017. No. 30(4). 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