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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">37681</article-id><article-id pub-id-type="doi">10.22363/1815-5235-2023-19-6-593-607</article-id><article-id pub-id-type="edn">HIQWQW</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">Finite Element for the Analysis of Massive Reinforced Concrete Structures with Cracking</article-title><trans-title-group xml:lang="ru"><trans-title>Конечный элемент для расчета массивных железобетонных конструкций с учетом трещинообразования</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1749-5797</contrib-id><name-alternatives><name xml:lang="en"><surname>Agapov</surname><given-names>Vladimir P.</given-names></name><name xml:lang="ru"><surname>Агапов</surname><given-names>Владимир Павлович</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Technical Sciences, Professor of the Department of Civil Engineering, Engineering Academy</p></bio><bio xml:lang="ru"><p>доктор технических наук, профессор департамента строительства, инженерная академия</p></bio><email>agapovpb@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3967-2114</contrib-id><name-alternatives><name xml:lang="en"><surname>Markovich</surname><given-names>Alexey S.</given-names></name><name xml:lang="ru"><surname>Маркович</surname><given-names>Алексей Семенович</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Technical Sciences, Associate Professor of the Department of Civil Engineering, Engineering Academy, RUDN University ; Associate Professor of the Department of Fundamental Education, Moscow State University of Civil Engineering (National Research University)</p></bio><bio xml:lang="ru"><p>кандидат технических наук, доцент департамента строительства, инженерная академия, Российский университет дружбы народов ; доцент кафедры фундаментального образования, Национальный исследовательский Московский государственный строительный университет</p></bio><email>markovich-as@rudn.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">RUDN University</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><aff-alternatives id="aff2"><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="2023-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2023</year></pub-date><volume>19</volume><issue>6</issue><issue-title xml:lang="en">VOL 19, NO6 (2023)</issue-title><issue-title xml:lang="ru">ТОМ 19, №6 (2023)</issue-title><fpage>593</fpage><lpage>607</lpage><history><date date-type="received" iso-8601-date="2024-01-30"><day>30</day><month>01</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Agapov V.P., Markovich A.S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Агапов В.П., Маркович А.С.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Agapov V.P., Markovich A.S.</copyright-holder><copyright-holder xml:lang="ru">Агапов В.П., Маркович А.С.</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/37681">https://journals.rudn.ru/structural-mechanics/article/view/37681</self-uri><abstract xml:lang="en"><p style="text-align: justify;">The solid finite element has been developed for the calculation of massive reinforced concrete structures with cracks. When constructing a finite element in the compression-compression-compression mode, the Willam &amp; Warnke failure criterion was used. The tensile behavior of concrete was assumed to be linear before the crack initiation. Modern building codes require non-linear calculations of concrete and reinforced concrete structures, taking into account the real properties of concrete and reinforcement. In this regard, a technique has been developed and a solid finite element has been built, adapted to the PRINS software, which makes it possible to perform calculations of massive reinforced concrete structures, taking into account their actual work. Development of a method for calculating reinforced concrete structures under conditions of a three-dimensional stress state, taking into account the brittle fracture of compressed concrete and cracking in tensile concrete. Based on this technique, the implementation of a solid finite element in the PRINS software. To verify the developed finite element, a series of test calculations of a beam under three-point bending conditions was carried out. Comparison of the calculation results with the data of experiments by the authors confirmed the high accuracy and reliability of the results obtained. The developed solid finite element included in the PRINS software can be effectively used by engineers of design and scientific organizations to solve a wide class of engineering problems related to the calculations of massive reinforced concrete structures.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Разработан объемный конечный элемент для расчета массивных железобетонных конструкций с учетом трещинообразования. При построении элемента в области напряженного состояния «сжатие - сжатие - сжатие» использован модифицированный критерий прочности Виллама - Варнке. Поведение бетона при растяжении принималось линейным вплоть до возникновения трещины. Современные строительные нормы и правила предписывают проводить расчеты бетонных и железобетонных конструкций в нелинейной постановке с учетом реальных свойств бетона и арматуры. В связи с этим разработана методика и построен объемный конечный элемент, адаптированный к ВК ПРИНС, позволяющий выполнять расчеты массивных железобетонных конструкций с учетом их действительной работы. Цель исследования - разработка методики расчета железобетонных конструкций, находящихся в условиях объемного напряженного состояния, с учетом хрупкого разрушения сжатого бетона и трещинообразования в растянутом бетоне. Для верификации разработанного конечного элемента проведена серия тестовых расчетов балки, находящейся в условиях трехточечного изгиба. Сравнение результатов расчета с данными экспериментов, проведенных авторами, подтвердило высокую точность и достоверность полученных результатов. Разработанный объемный конечный элемент в составе ВК ПРИНС может быть эффективно использован инженерами проектных и научных организаций для решения широкого класса инженерных задач, связанных с расчетами массивных железобетонных конструкций.</p></trans-abstract><kwd-group xml:lang="en"><kwd>finite element method</kwd><kwd>PRINS computational program</kwd><kwd>building structures</kwd><kwd>solid reinforced concrete structures</kwd><kwd>physical nonlinearity</kwd><kwd>plasticity</kwd><kwd>flow theory</kwd><kwd>structural mechanics</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>метод конечных элементов</kwd><kwd>вычислительный комплекс ПРИНС</kwd><kwd>строительные конструкции</kwd><kwd>массивные железобетонные сооружения</kwd><kwd>физическая нелинейность</kwd><kwd>пластичность</kwd><kwd>теория течения</kwd><kwd>механика деформируемых тел</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">Agapov V.P. 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