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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">49489</article-id><article-id pub-id-type="doi">10.22363/1815-5235-2025-21-6-497-508</article-id><article-id pub-id-type="edn">EBFSNK</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Analytical and numerical methods of analysis of structures</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Аналитические и численные методы расчета 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">Analytical Modeling of Reinforced Concrete Columns Under Lateral Impact with Shear Failure</article-title><trans-title-group xml:lang="ru"><trans-title>Аналитическая модель динамического расчета железобетонных колонн при горизонтальном ударе с разрушением по наклонному сечению</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4765-5819</contrib-id><contrib-id contrib-id-type="spin">3035-5571</contrib-id><name-alternatives><name xml:lang="en"><surname>Alekseytsev</surname><given-names>Anatoly V.</given-names></name><name xml:lang="ru"><surname>Алексейцев</surname><given-names>Анатолий Викторович</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Technical Sciences, Professor of the Department of Reinforced Concrete and Masonry Structures</p></bio><bio xml:lang="ru"><p>доктор технических наук, профессор кафедры железобетонных и каменных конструкций</p></bio><email>aalexw@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-1970-3491</contrib-id><contrib-id contrib-id-type="spin">8084-3827</contrib-id><name-alternatives><name xml:lang="en"><surname>Yurusov</surname><given-names>Konstantin V.</given-names></name><name xml:lang="ru"><surname>Юрусов</surname><given-names>Константин Валерьевич</given-names></name></name-alternatives><bio xml:lang="en"><p>Postgraduate student of the Department of Reinforced Concrete and Masonry Structures</p></bio><bio xml:lang="ru"><p>аспирант кафедры железобетонных и каменных конструкций</p></bio><email>walrk@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Moscow State University of Civil Engineering (National Research University)</institution></aff><aff><institution xml:lang="ru">Национальный исследовательский Московский государственный строительный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-04-03" publication-format="electronic"><day>03</day><month>04</month><year>2026</year></pub-date><volume>21</volume><issue>6</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>497</fpage><lpage>508</lpage><history><date date-type="received" iso-8601-date="2026-04-04"><day>04</day><month>04</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Alekseytsev A.V., Yurusov K.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Алексейцев А.В., Юрусов К.В.</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Alekseytsev A.V., Yurusov K.V.</copyright-holder><copyright-holder xml:lang="ru">Алексейцев А.В., Юрусов К.В.</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/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/structural-mechanics/article/view/49489">https://journals.rudn.ru/structural-mechanics/article/view/49489</self-uri><abstract xml:lang="en"><p>The issue of ensuring the mechanical safety of load-bearing structures in buildings and facilities is currently of particular relevance. One critical aspect of this problem is the strength of compressed and compressed-bent elements under transverse impact loading. Several failure mechanisms can occur in reinforced concrete (RC) columns. This paper develops an analytical methodology for determining the ultimate load capacity of square cross-section elements under horizontal impact, specifically for the failure mode associated with diagonal shear. Such scenarios are possible in cases of vehicle collision with a column or impacts near the support zone of the structure. The analytical model is based on static equilibrium equations, which incorporate the ultimate mechanical characteristics of the materials, accounting for dynamic strengthening effects. The concrete deformation model considers the confining effect in the direction perpendicular to compression, which enhances the concrete’s calculated resistance but induces additional stresses in the transverse reinforcement. A numerical example of the calculation for a building’s RC column is provided, yielding specific numerical results. A comparison is made between the outcomes of the proposed methodology and those obtained from a detailed numerical simulation performed using a verified solid finite element model. The limitations of the proposed analytical method are identified, and its sufficiently high accuracy and efficiency are demonstrated. Finally, prospects for further development are outlined, and recommendations for the practical application of the method to ensure the mechanical safety of reinforced concrete columns are provided.</p></abstract><trans-abstract xml:lang="ru"><p>Проблема обеспечения механической безопасности несущих конструкций зданий и сооружений представляется особенно актуальной. Одним из важных аспектов этой проблемы является прочность сжатых и сжато-изогнутых элементов при действии поперечной ударной нагрузки. При этом для железобетонных колонн может реализовываться несколько схем разрушения. Разработана методика аналитического определения предельной нагрузки от горизонтального удара для элементов квадратного поперечного сечения при реализации схемы разрушения по наклонному сечению. Характерными аварийными ситуациями, соответствующими этой схеме разрушения, являются столкновения с колонной автомобиля или удары вблизи зоны опорного закрепления конструкции. Основой аналитического расчета являются уравнения статического равновесия, в которых используются предельные механические характеристики материалов с учетом динамического упрочнения. При деформировании бетона учитывается эффект от стеснения в направлении, перпендикулярном сжатию, что повышает расчетное сопротивление бетона, но вызывает дополнительные напряжения в поперечной арматуре. Выполнен пример расчета железобетонной колонны здания, доведенный до числовых значений, и приведено сопоставление результатов предлагаемой методики с численным расчетом. В качестве инструмента численного расчета использовалась верифицированная объемная конечно-элементная модель. Выявлены ограничения предлагаемого аналитического метода и установлена его достаточно высокая точность и эффективность. Сформулированы перспективы дальнейших разработок и даны рекомендации по конкретному использованию метода для обеспечения механической безопасности железобетонных колонн.</p></trans-abstract><kwd-group xml:lang="en"><kwd>lateral impact</kwd><kwd>reinforced concrete structures</kwd><kwd>dynamic loading</kwd><kwd>structural safety</kwd><kwd>shear strength</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>поперечный удар</kwd><kwd>железобетонные конструкции</kwd><kwd>динамическое нагружение</kwd><kwd>механическая безопасность</kwd><kwd>сдвиговая прочность</kwd></kwd-group><funding-group/></article-meta><fn-group/></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Jaiswal D.K., Murty C.V.R. Lateral deformation capacity of cantilever RC hollow columns using physics-based concrete confinement model. 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