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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">10.33979/2073-7416-2026-125-3-60-70</article-id><article-id custom-type="edn" pub-id-type="custom">HWOXXO</article-id><article-id custom-type="elpub" pub-id-type="custom">construction-1077</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>Живучесть сборно-монолитных железобетонных рам при особых воздействиях</article-title><trans-title-group xml:lang="en"><trans-title>Robostness of precast monolithic concrete frames under special impacts</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7169-2652</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кайдас</surname><given-names>П. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kaydas</surname><given-names>P. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кайдас Павел Анатольевич, аспирант кафедры железобетонных и каменных конструкций, старший преподаватель кафедры промышленного и гражданского строительства</p><p>Scopus ID: 58287300800</p><p>г. Москва</p></bio><bio xml:lang="en"><p>Pavel A. Kaydas, Postgraduate Student of the Department of Reinforced Concrete and Masonry Structures, Senior Lecturer of the Department of Industrial and Civil Engineering</p><p>Scopus ID: 58287300800</p><p>Moscow</p><p> </p></bio><email xlink:type="simple">pavelkds@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный Исследовательский Московский Государственный Строительный Университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Moscow State University of Civil Engineering (NRU MSUCE)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>19</day><month>07</month><year>2026</year></pub-date><volume>0</volume><issue>3</issue><fpage>60</fpage><lpage>70</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кайдас П.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Кайдас П.А.</copyright-holder><copyright-holder xml:lang="en">Kaydas P.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/1077">https://construction.elpub.ru/jour/article/view/1077</self-uri><abstract><p>Рассматривается задача оценки живучести сборно-монолитных железобетонных рам и рамных каркасов зданий при особых аварийных воздействиях. Живучесть определяется как способность системы перераспределять нагрузку между несущими элементами после выключения из конструктивной системы одного из элементов без наступления ее геометрической изменяемости. Методика базируется на двухуровневой расчётной схеме: сначала рассматривается пространственная рама всего здания в целом, затем фрагмент каркаса в зоне возможного локального разрушения. Расчёт включает определение напряжённо-деформированного состояния при эксплуатационных нагрузках, оценку динамических догружений после удаления элемента и вычисление параметра живучести конструктивной системы. Используются трёхлинейные диаграммы деформирования «момент кривизна» и «сдвигающая сила угол сдвига», учитывающие образование нормальных и сдвиговых трещин, а также податливость шва между сборной и монолитной частями ригелей. Установлено, что до образования трещин сдвига между сборной и монолитной частями ригелей рам сечение ригеля работает как монолитное, а после образования трещин от сдвига как составная конструкция. Полученные результаты могут быть использованы при оценке живучести сборно-монолитных рамных и рамно-связевых железобетонных конструктивных систем при особых и аварийных воздействиях.</p></abstract><trans-abstract xml:lang="en"><p>This paper examines the problem of assessing the survivability of precast-monolithic reinforced concrete frames and frame structures in buildings under special accident loads. Survivability is defined as the system’s ability to redistribute the load between load-bearing elements after the failure of one of the elements in the structural system without causing any change in its geometry. The methodology is based on a two-level calculation scheme: first, the spatial frame of the entire building is considered as a whole, then a section of the frame in the zone of possible local failure. The calculation involves determining the stress-strain state under service loads, assessing dynamic post-loadings following the removal of an element, and calculating the structural system’s resilience parameter. Three-line deformation diagrams—‘moment–curvature’ and ‘shear force–shear angle’—are used, taking into account the formation of flexural and shift cracks, as well as the ductility of the joint between the precast and monolithic layers of the beams. The influence of the spacing of transverse reinforcement in the bearing zone of the beam was investigated. It has been established that, prior to the formation of shift cracks between the precast and monolithic layers of the beams, the beam cross-section behaves as a monolithic structure; once shift crack have formed, it behaves as a composite structure.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сборно-монолитные конструкции</kwd><kwd>особые воздействия</kwd><kwd>трещинообразование</kwd><kwd>перемещения</kwd><kwd>живучесть</kwd></kwd-group><kwd-group xml:lang="en"><kwd>precast-monolithic structures</kwd><kwd>special impacts</kwd><kwd>cracking</kwd><kwd>displacements</kwd><kwd>survivability</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда No 24-49-10010, https://rscf,ru//project/24-49-10010/</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Кодыш, Э. Н. 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