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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">vestniktgasu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Томского государственного архитектурно-строительного университета</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1607-1859</issn><issn pub-type="epub">2310-0044</issn><publisher><publisher-name>Tomsk State University of Architecture and Building</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31675/1607-1859-2026-28-4-141-162</article-id><article-id custom-type="edn" pub-id-type="custom">MEGYQE</article-id><article-id custom-type="elpub" pub-id-type="custom">vestniktgasu-2580</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>СТРОИТЕЛЬНЫЕ КОНСТРУКЦИИ, ЗДАНИЯ И СООРУЖЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BUILDING AND CONSTRUCTION</subject></subj-group></article-categories><title-group><article-title>Четырехстадийный механизм разрушения сталежелезобетонной перемычки с внешним листовым армированием</article-title><trans-title-group xml:lang="en"><trans-title>Four-stage Failure Mechanism of Composite Coupling Beam with External Reinforcement Plate</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>Десяткин</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Desyatkin</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михаил Александрович Десяткин, гл. конструктор</p><p>115280; ул. Ленинская Слобода, 19; Москва</p></bio><bio xml:lang="en"><p>Mikhail A. Desyatkin, Chief Designer</p><p>115280; 19, Leninskaya Sloboda Str.; Moscow</p></bio><email xlink:type="simple">mdesyatkin@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ООО «Инфорспроект»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>OOO ‘Inforsproekt’</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>02</day><month>09</month><year>2026</year></pub-date><volume>28</volume><issue>4</issue><fpage>141</fpage><lpage>162</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Десяткин М.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Десяткин М.А.</copyright-holder><copyright-holder xml:lang="en">Desyatkin 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://vestnik.tsuab.ru/jour/article/view/2580">https://vestnik.tsuab.ru/jour/article/view/2580</self-uri><abstract><sec><title>   Актуальность</title><p>   Актуальность. Сталежелезобетонные перемычки с внешним листовым армированием (СТЖБ с ЛА) – новое конструктивное решение для связевых стен высотных зданий, механизм разрушения которого не описан в отечественной и зарубежной литературе. Образцы испытаны ЦНИИСК им. В.А. Кучеренко в рамках научно-технического сопровождения проектирования высотного здания.</p></sec><sec><title>   Цель</title><p>   Цель. Установить и описать механизм разрушения СТЖБ с ЛА по результатам экспериментальных данных.</p></sec><sec><title>   Методы</title><p>   Методы. Испытания трех образцов серии B3.1 (пролет 665 мм, высота сечения 345 мм, толщина 200 мм; пластина 4 мм, бетон B30, стад-болты М5 и шпильки Ø6 с шагом 110×110 мм); анализ 33 тензорезисторов, датчиков перемещений и фотофиксации.</p></sec><sec><title>   Результаты</title><p>   Результаты. Установлен четырехстадийный механизм: (I) линейно-упругая стадия; (II) текучесть стали; (III) локальная потеря устойчивости сжатой пластины (определяющая стадия); (IV) разрушение бетонного ядра. Pmax = 1301 кН, CV = 4,8 %, θu = 0,033 рад. Несущая способность превышает аналоги с замоноличенным стальным профилем на 30–35 %. Полученные результаты формируют экспериментальную базу для развития расчетных моделей в российских нормах проектирования высотных зданий.</p></sec></abstract><trans-abstract xml:lang="en"><p>   Composite coupling beams with external reinforcement plate are a novel structural solution for shear walls in high-rise buildings whose failure mechanism is not described in Russian or international literature. Specimens are tested in Kucherenko Central Research Institute for Structural Construction under a technological support program of high-rise building design.</p><sec><title>   Purpose</title><p>   Purpose: The aim of the work is to study the failure mechanism of the composite coupling beam based on the experimental data.</p></sec><sec><title>   Methodology</title><p>   Methodology: Testing of three specimens B3.1 (665 mm clear span, 345 mm section depth, 200 mm thickness, 4 mm steel plate, B30 concrete, M5 stud bolts and Ø6 ties on 110×110 mm grid). The analysis of 33 strain gauges, displacement transducers and camera recording.</p></sec><sec><title>   Research findings</title><p>   Research findings: A four-stage failure mechanism is identified: (I) linear-elastic stage; (II) steel yielding; (III) local buckling of the compressed plate (governing stage); (IV) concrete core failure. Pmax = 1301 kN, CV = 4.8 %, θu = 0.033 rad. The load-bearing capacity is 30–35 % higher that that of analogues with an encased steel profile.</p></sec><sec><title>   Practical implication</title><p>   Practical implication: The experimental results can be used to create design models in Russian codes for high-rise buildings.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>сталежелезобетонная конструкция</kwd><kwd>перемычка</kwd><kwd>внешнее листовое армирование</kwd><kwd>механизм разрушения</kwd><kwd>стадии работы</kwd><kwd>локальная потеря устойчивости пластины</kwd></kwd-group><kwd-group xml:lang="en"><kwd>composite structure</kwd><kwd>coupling beam</kwd><kwd>external reinforcement</kwd><kwd>failure mechanism</kwd><kwd>loading stage</kwd><kwd>local plate buckling</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">Paulay, T., Binney, J.R. 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