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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">10.33979/2073-7416-2024-116-6-15-27</article-id><article-id custom-type="elpub" pub-id-type="custom">construction-820</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>ТЕОРИЯ ИНЖЕНЕРНЫХ СООРУЖЕНИЙ. СТРОИТЕЛЬНЫЕ КОНСТРУКЦИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>THEORY OF ENGINEERING STRUCTURES. BUILDING UNITS</subject></subj-group></article-categories><title-group><article-title>Расчетная модель  сопротивления железобетона в околоарматурной области</article-title><trans-title-group xml:lang="en"><trans-title>Development of the  reinforced concrete resistance theory in the zone about reinforcement</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>Колчунов</surname><given-names>В. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolchunov</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p> </p><p>Колчунов Владимир Иванович, Член-корреспондент РААСН, доктор технических наук, профессор, профессор кафедры инженерной графики и компьютерного моделирования</p><p>г. Москва, Ярославское шоссе, 26</p><p>127238, г. Москва, Локомотивный проезд, 21</p></bio><bio xml:lang="en"><p>Kolchunov Vladimir I., Corresponding Member of the Russian Academy of Architecture and Construction Sciences, doctor of technical sciences, professor, professor of the Department of Engineering Graphics and Computer Modeling</p><p>26, Yaroslavskoye Shosse, Moscow</p><p>21 Lokomotivnyy Proezd, Moscow, 127238</p></bio><email xlink:type="simple">vlik52@mail.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>Фёдорова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedorova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фёдорова Наталия Витальевна, Советник РААСН, доктор технических наук, профессор, зав. кафедрой промышленного и гражданского строительства</p><p>г. Москва, Ярославское шоссе, 26</p></bio><bio xml:lang="en"><p>Fedorova Natalia V., Advisor of RAACS, Doctor of Technical Sciences, Professor, Head of the Department of Industrial and Civil Engineering</p><p>26, Yaroslavskoye Shosse, Moscow</p></bio><email xlink:type="simple">fedorova@mfmgsu.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ильющенко</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Llushchenko</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ильющенко Татьяна Александровна, Кандидат технических наук, старший преподаватель кафедры промышленного и гражданского строительства</p><p>г. Курск, ул. Радищева, д.33</p></bio><bio xml:lang="en"><p>llushchenko Tatiana A., Canddate of technical science, Senior Lecturer of the Department of Industrial and Civil Engineering construction</p><p>33 Radishcheva street, Kursk</p></bio><email xlink:type="simple">tatkhalina93@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский Московский государственный строительный университет (НИУ МГСУ); Научно-исследовательский институт строительной физики Российской академии архитектуры и строительных наук</institution></aff><aff xml:lang="en"><institution>Moscow State University of Civil Engineering (NIU MGSU); Scientific Research Institute of Construction Physics of the Russian Academy of Architecture and Construction Sciences</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский Московский государственный строительный университет (НИУ МГСУ)</institution></aff><aff xml:lang="en"><institution>Moscow State University of Civil Engineering (NIU MGSU)</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Курский государственный университет (КГУ)</institution></aff><aff xml:lang="en"><institution>Kursk State University (KSU)</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>10</day><month>12</month><year>2024</year></pub-date><volume>0</volume><issue>6</issue><fpage>15</fpage><lpage>27</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Колчунов В.Л., Фёдорова Н.В., Ильющенко Т.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Колчунов В.Л., Фёдорова Н.В., Ильющенко Т.А.</copyright-holder><copyright-holder xml:lang="en">Kolchunov V.I., Fedorova N.V., llushchenko T.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/820">https://construction.elpub.ru/jour/article/view/820</self-uri><abstract><p>Решена актуальная задача сопротивления околоарматурной зоны бетона, как задача объемного напряженно-деформированного состояния с «замыканием» выходных интегральных параметров этой зоны на стержневую схему всего железобетонного элемента синтезирующей в себе гипотезы и зависимости механики железобетона и механики разрушения. В расчетной модели железобетонного элемента учтен эффект железобетона проф. Вл.И. Колчунова, описывающий механизм образования и развития поперечных и продольных трещин. При этом приняты обобщенные гипотезы линейных и угловых деформаций для депланациии и градиентов относительных взаимных смещений арматуры и бетона. Построены новые функционалы железобетона, которые согласуются с физическими представлениями о сопротивлении поперечных сечений стержневых элементов в околоарматурных зонах. Записаны физические уравнения для бетонной матрицы, моделирующей зоны между поперечными трещинами. Найдены составляющие перемещений для околоарматурной области применительно к ширине раскрытия трещин на границе контакта «бетон-арматура» в поперечных, продольных и радиальных трещинах, соответственно. В принятых предпосылках Использование принятых предпосылок и многоуровневой расчетной схемы для околоарматурной области заметно приближает расчетную модель к реальной оценке физических явлений.  </p></abstract><trans-abstract xml:lang="en"><p>The actual problem of resistance of near-reinforcement zone of concrete is solved as a problem of volumetric stress-strain state with "closure" of output integral parameters of this zone on the rod scheme of the whole reinforced concrete element synthesizing hypotheses and dependencies of various disciplines of mechanics of solid deformation body, including fracture mechanics. The calculation model of the reinforced concrete element takes into account the effect of reinforced concrete of prof. Vl.I. Kolchunov describing the mechanism of formation and development of transverse and longitudinal cracks. In this case, generalized hypotheses of linear and angular deformations for warping and gradients of jumps of relative mutual displacements of reinforcement and concrete are adopted. New functionals of reinforced concrete are constructed, which are consistent with the ideas about resistance of crosssections of rod elements in near-reinforcement zones. Physical equations for a concrete matrix modeled between transverse cracks are written. </p><p>The displacement components for the near-reinforcement area are found in relation to the crack opening width at the boundary of the "concrete-reinforcement" contact in transverse, longitudinal and radial cracks, respectively. The use of the accepted assumptions and multi-level calculation scheme for the near-reinforcement region significantly brings the calculation model closer to a real assessment of physical phenomena.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>расчетная модель</kwd><kwd>сопротивление железобетона</kwd><kwd>околоарматурная область</kwd><kwd>цилиндрические координаты</kwd><kwd>эффект железобетона</kwd><kwd>линейные и угловые деформации</kwd><kwd>обобщенная гипотеза</kwd></kwd-group><kwd-group xml:lang="en"><kwd>calculation model</kwd><kwd>resistance of reinforced concrete</kwd><kwd>near-reinforcement region</kwd><kwd>cylindrical coordinates</kwd><kwd>effect of reinforced concrete</kwd><kwd>linear and angular deformations</kwd><kwd>generalized hypothesis</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">В.М. Бондаренко, Вл.И. Колчунов. 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