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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">concconc</journal-id><journal-title-group><journal-title xml:lang="ru">Железобетонные конструкции</journal-title><trans-title-group xml:lang="en"><trans-title>Reinforced concrete structures</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2949-1622</issn><issn pub-type="epub">2949-1614</issn><publisher><publisher-name>Национальный исследовательский Московский государственный строительный университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22227/2949-1622.2024.1.35-42</article-id><article-id custom-type="elpub" pub-id-type="custom">concconc-49</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 БЕТОНА И ЖЕЛЕЗОБЕТОНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>THEORY OF CONCRETE AND REINFORCED CONCRETE</subject></subj-group></article-categories><title-group><article-title>Совершенствование методики расчета плит на продавливание</article-title><trans-title-group xml:lang="en"><trans-title>Improvement of the Method of Calculating Plates for Punching</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>Трекин</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Trekin</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Трекин Николай Николаевич, доктор технических наук, профессор, профессор кафедры железобетонных и каменных конструкций</p><p>129337, г. Москва, Ярославское шоссе, д. 26</p></bio><bio xml:lang="en"><p>Nikolai N. Trekin, Doctor of Technical Sciences, Associate Professor, Associate Professor of the Department of Reinforced Concrete and MasonryStructures</p><p>26 Yaroslavskoe shosse, Moscow, 129337 </p></bio><email xlink:type="simple">otks@yandex.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>Крылов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Krylov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Крылов Владимир Владимирович, аспирант</p><p>129337, г. Москва, Ярославское шоссе, д. 26</p></bio><bio xml:lang="en"><p>Vladimir V. Krylov, Graduate student</p><p>26 Yaroslavskoe shosse, Moscow, 129337 </p></bio><email xlink:type="simple">albet-group@yandex.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>Андрян</surname><given-names>К. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Andrian</surname><given-names>K. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрян Константин Рашидович, аспирант</p><p>127238, г. Москва, Дмитровское шоссе, д. 46/2</p></bio><bio xml:lang="en"><p>Konstantin R. Andrian, Graduate student</p><p>Dmitrovskoe sh., 46/2, Moscow, 127238 </p></bio><email xlink:type="simple">andryankr@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><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><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Акционерное общество «Центральный научно-исследовательский и проектно-экспериментальный институт (АО ЦНИИПромзданий)»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Joint Stock Company “Central Research and Design Experimental Institute (JSC Tsniipromzdaniy)”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>28</day><month>06</month><year>2024</year></pub-date><volume>6</volume><issue>2</issue><fpage>35</fpage><lpage>42</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Трекин Н.Н., Крылов В.В., Андрян К.Р., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Трекин Н.Н., Крылов В.В., Андрян К.Р.</copyright-holder><copyright-holder xml:lang="en">Trekin N.N., Krylov V.V., Andrian K.R.</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.g-b-k.ru/jour/article/view/49">https://www.g-b-k.ru/jour/article/view/49</self-uri><abstract><p>В статье сформулированы предложения по совершенствованию расчетной методики на продавливание. Методики в действующих нормативных документах по оценке прочности на продавливание основываются в основном на эмпирических зависимостях, полученных на основе многочисленных экспериментальных исследований. Следует отметить, что они дают надежные результаты при соблюдении определенных конструктивных требований (типовые сечения колонн). По линии сопряжения плиты с прямоугольной (квадратной) колонной действуют опорные изгибающие моменты в двух ортогональных направлениях. Величина этих моментов для наиболее распространенных пролетов велика и в упругой постановке превышает пролетные в два раза. Учитывая перераспределение усилий и наиболее вероятное образование трещин в растянутой зоне, можно утверждать, что в эксплуатационной стадии опорные сечения плит имеют сжатую и растянутую зоны. При таком напряженно-деформированном состоянии в расчетной схеме при оценке прочности на продавливание следует исключить растянутую часть боковой поверхности «приведенной» пирамиды, ограниченной нейтральной осью по всем граням. В результате представлены выражения для определения параметров приведенной пирамиды продавливания и значения усилий в бетоне и арматуре в предельной по несущей способности стадии.</p></abstract><trans-abstract xml:lang="en"><p>The article formulates proposals for improving the calculation methodology for punching. The methods in the current regulatory documents for assessing the tensile strength are based mainly on empirical dependencies obtained on the basis of numerous experimental studies. It should be noted that they give reliable results if certain design requirements are met (typical column sections). Along the interface line of the plate with a rectangular (square) column, supporting bending moments act in two orthogonal directions. The magnitude of these moments for the most common spans is large and, in an elastic setting, exceeds the span by two times. Taking into account the redistribution of forces and the most likely formation of cracks in the stretched zone, it can be argued that in the operational stage, the support sections of the plates have compressed and stretched zones. With such a stress-strain state, in the calculation scheme, when evaluating the tensile strength, the stretched part of the side surface of the “reduced” pyramid, bounded by the neutral axis along all faces, should be excluded. As a result, expressions are presented to determine the parameters of the reduced punching pyramid and the value of forces in concrete and reinforcement at the maximum bearing capacity stage.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>динамическая нагрузка</kwd><kwd>безбалочная плита</kwd><kwd>схема разрушения</kwd><kwd>продавливание</kwd></kwd-group><kwd-group xml:lang="en"><kwd>dynamic load</kwd><kwd>girderless plate</kwd><kwd>fracture pattern</kwd><kwd>punching</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">Клованич С.Ф., Шеховцов В.И. Продавливание железобетонных плит. Натурный и численный эксперименты. Одесса : ОНМУ, 2011.</mixed-citation><mixed-citation xml:lang="en">Klovanich S.F., Shekhovtsov V.I. Punching of reinforced concrete slabs. Natural and numerical experiments. 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