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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">10.33979/2073-7416-2022-101-3-87-97</article-id><article-id custom-type="elpub" pub-id-type="custom">construction-482</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>СИЛОВОЕ СОПРОТИВЛЕНИЕ ЖЕЛЕЗОБЕТОННЫХ КАРКАСОВ МНОГОЭТАЖНЫХ ЗДАНИЙ С КОСВЕННЫМ АРМИРОВАНИЕМ В ЗАПРЕДЕЛЬНЫХ СОСТОЯНИЯХ</article-title><trans-title-group xml:lang="en"><trans-title>RESISTANCE OF REINFORCED CONCRETE FRAMES OF MULTISTOREY BUILDINGS WITH INDIRECT REINFORCEMENT IN OVEREXTREME LIMIT STATES</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>ФАН</surname><given-names>ДИНЬ ГУОК</given-names></name><name name-style="western" xml:lang="en"><surname>PHAN</surname><given-names>DINH QUOC</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фан Динь Гуок, аспирант кафедры железобетонных и каменных конструкций</p><p>г. Москва</p></bio><bio xml:lang="en"><p>Phan Dinh Quoc, postgraduate student of the Department of Reinforced Concrete and Stone Structures</p><p>Moscow</p></bio><email xlink:type="simple">D2nucevn@gmail.com</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>ИЛЬЮЩЕНКО</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>ILIUSHCHENKO</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ильющенко Татьяна Александровна, ФГБОУ ВО «Юго-Западный государственный университет», кандидат технических наук, преподаватель кафедры уникальных зданий и сооружений. Научно-исследовательский институт строительной физики РААСН Российская Федерация, инженер. </p><p>г. Курскг. Москва</p></bio><bio xml:lang="en"><p>Iliushchenko Tatiana A. - Southwest State University, candidate of technical sciences, teacher of unique buildings and structures. Research Institute of Building Physics of Russian Academy of Architecture and Construction Sciences, engineer</p><p>KurskMoscow</p></bio><email xlink:type="simple">tatkhalina93@yandex.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>АМЕЛИНА</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>AMELINA</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Амелина Маргарита Андреевна, студент кафедры уникальных зданий и сооружений</p><p>г. Курск</p></bio><bio xml:lang="en"><p>Amelina Margarita A., student of the Department of Reinforced Concrete and Stone Structures</p><p>Kursk</p></bio><email xlink:type="simple">margo.dremova@mail.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</institution></aff><aff xml:lang="en"><institution>Moscow State University of Civil Engineering</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Юго-западный государственный университет; Научно-исследовательский институт строительной физики РААСН Российская Федерация</institution></aff><aff xml:lang="en"><institution>South West State University; Research Institute of Building Physics of Russian Academy of Architecture and Construction Sciences</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Юго-западный государственный университет</institution></aff><aff xml:lang="en"><institution>South West State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>23</day><month>07</month><year>2022</year></pub-date><volume>0</volume><issue>3</issue><fpage>87</fpage><lpage>97</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ФАН Д., ИЛЬЮЩЕНКО Т.А., АМЕЛИНА М.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">ФАН Д., ИЛЬЮЩЕНКО Т.А., АМЕЛИНА М.А.</copyright-holder><copyright-holder xml:lang="en">PHAN D., ILIUSHCHENKO T.A., AMELINA M.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/482">https://construction.elpub.ru/jour/article/view/482</self-uri><abstract><p>Приведены результаты исследований монолитных железобетонных каркасов многоэтажных зданий и железобетонных рам, моделирующих фрагменты таких каркасов в запредельных состояниях, вызванных особыми воздействиями. Рассмотрено два варианта армирования ригелей рам: с двойным армированием, обеспечивающем работу ригеля при изменении в раме силовых потоков и соответственно знака момента; варианта с двойным армированием и установкой дополнительного косвенного армирования в приопорных зонах ригелей на всю высоту сечения. Первичные и вторичные расчетные схемы были построены с использованием объемных конечных элементов для бетона и стержневых элементов арматуры.Полученные расчетные параметры деформаций, картин трещин и схем разрушения рам для всех вариантов сопоставлены между собой и с результатами испытаний физических моделей этих конструкций. Для оценки влияния смешанного армирования на предельные деформации сжатого бетона в запредельных состояниях, на основе теории пластичности бетона и железобетона Г.А. Гениева, построены деформационные зависимости для характерного железобетонного элемента, армированного стержнями одного направления и сетками в двух других при одноосном сжатии и объемной деформации.Установлено, что использование косвенного армирования в сочетании с двойной продольной арматурой в изгибаемых элементах при статико-динамическом режиме нагружении значительно увеличивает предельные деформации. Этот вариант армирования является одним из эффективных способов защиты монолитных железобетонных каркасов многоэтажных зданий от прогрессирующего обрушения при особых воздействиях.</p></abstract><trans-abstract xml:lang="en"><p>The results of studies of monolithic reinforced concrete frames of multi-storey buildings and reinforced concrete frames simulating fragments of such frames in over-extreme limit states caused by special actions are presented. Two options for reinforcing the beams of the frames are considered: with double reinforcement, which ensures the operation of the beam when the force flows in the frame and, accordingly, the sign of the moment change; option with double reinforcement and installation of additional indirect reinforcement in the support zones of the beams for the entire height of the section. Primary and secondary design models were built using volumetric finite elements for concrete and reinforcement rods. The obtained design parameters of deformations, crack patterns and frame failure patterns for all options are compared with each other and with the results of testing physical models of these structures. To assess the effect of mixed reinforcement on the limiting deformations of compressed concrete in over-extreme limit states, based on the theory of plasticity of concrete and reinforced concrete G.A. Geniyeva, deformation dependencies are constructed for a typical reinforced concrete element reinforced with rods in one direction and meshes in the other two under uniaxial compression and volumetric deformation.It has been established that the use of indirect reinforcement in combination with double longitudinal reinforcement in bending elements under static-dynamic loading conditions significantly increases the ultimate deformation of the compressed zone. This reinforcement option can working way to protect monolithic reinforced concrete frames of multi-storey buildings from progressive collapse under special actions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>железобетонный каркас</kwd><kwd>особое воздействие</kwd><kwd>запредельное состояние</kwd><kwd>косвенное армирование</kwd><kwd>расчет</kwd><kwd>живучесть</kwd></kwd-group><kwd-group xml:lang="en"><kwd>reinforced concrete frame</kwd><kwd>special action</kwd><kwd>over-extreme limit states</kwd><kwd>indirect reinforcement</kwd><kwd>calculation</kwd><kwd>survivability</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">Бондаренко В.М., Колчунов В.И., Воробьев Е.Д., Осовских Е.В., Доценко В.Н.. Конструкционная безопасность каркасов жилых зданий // БСТ: Бюллетень строительной техники. 2004. №. 1. 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