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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">izvestswsu</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Юго-Западного государственного университета</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Southwest State University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2223-1560</issn><issn pub-type="epub">2686-6757</issn><publisher><publisher-name>ЮЗГУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21869/2223-1560-2025-29-4-23-37</article-id><article-id custom-type="elpub" pub-id-type="custom">izvestswsu-1514</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>СТРОИТЕЛЬСТВО</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CONSTRUCTION</subject></subj-group></article-categories><title-group><article-title>Сейсмоизоляция модульных железобетонных зданий</article-title><trans-title-group xml:lang="en"><trans-title>Seismic isolation of modular reinforced concrete buildings</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-2054-8861</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Попов</surname><given-names>А. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Popov</surname><given-names>A. Kh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Попов Андрей Харлампиевич, студент</p><p>ул. Политехническая, д. 29, г. Санкт-Петербург 195251</p></bio><bio xml:lang="en"><p>Andrey Kh. Popov, Student</p><p>29, Polytechnicheskaya str., St. Petersburg 195251</p></bio><email xlink:type="simple">popov.ah@edu.spbstu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1030-8370</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тарасов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tarasov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тарасов Владимир Александрович, кандидат технических наук, доцент ВШПГиДС</p><p>ул. Политехническая, д. 29, г. Санкт-Петербург 195251</p></bio><bio xml:lang="en"><p>Vladimir A. Tarasov, Cand. of Sci. (Engineering), Associate Professor, Higher School of Industrial, Civil and Road Construction, Institute of Civil Engineering</p><p>29, Polytechnicheskaya str., St. Petersburg 195251</p></bio><email xlink:type="simple">vtarasov1000@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский политехнический университет Петра Великого (СПбПУ)</institution></aff><aff xml:lang="en"><institution>Peter the Great St. Petersburg Polytechnic University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>08</day><month>01</month><year>2026</year></pub-date><volume>29</volume><issue>4</issue><fpage>23</fpage><lpage>37</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Попов А.Х., Тарасов В.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Попов А.Х., Тарасов В.А.</copyright-holder><copyright-holder xml:lang="en">Popov A.K., Tarasov V.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://izvestswsu.elpub.ru/jour/article/view/1514">https://izvestswsu.elpub.ru/jour/article/view/1514</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования. Целью данного исследования является разработка конструктивного решения, обеспечивающего сейсмостойкость модульного здания в районе с сейсмичностью 9 баллов по шкале MSK-64. Методы. В исследовании используется конечно-элементная расчетная модель здания со ствольно-модульной конструктивной системой с железобетонными модулями. Для анализа применяются численные методы с использованием конечно-элементной модели в ANSYS, SCAD. В комплексе SCAD создана единая расчётная модель всего здания, включающая монолитную часть, модульную часть и соединения между модулями. Межмодульные соединения моделировались специальными элементами с конечной жёсткостью. Жесткость межмодульных соединений была определена с помощью конечно-элементной модели из объёмных элементов в комплексе ANSYS, по этой же модели анализировались напряжения в соединениях. Учитывались все нагрузки нормальной эксплуатации здания, а также сейсмическая нагрузка по действующим нормам РФ для г. Владикавказ. Рассматривалось линейное упругое поведение материала конструкций. В ходе расчётов исследуются интенсивность армирования в несущих конструкциях здания, распределение напряжений в самом нагруженном межмодульном соединении.</p></sec><sec><title>Результаты</title><p>Результаты. Результаты расчётов показывают, что применение сейсмоизоляции значительно уменьшает влияние сейсмического воздействия на здание, снижая интенсивность армирования до 55% (более чем в 2 раза) в монолитной части и до 60% – в модульной части по сравнению с аналогичным зданием без системы сейсмоизоляции. Так же была предложена конструкция усиленного межмодульного соединения, использование которой обеспечивает выполнение условий прочности при сейсмическом воздействии.  Заключение. Исследование качественно показало, что использование системы сейсмоизоляции позволяет достичь необходимого уровня сейсмостойкости модульных железобетонных зданий без изменения типовых конструктивных решений модулей. Данное исследование имеет важную практическую пользу, которая заключается в подготовке расчётной базы для строительства зданий из железобетонных модулей в сейсмоактивных районах. На следующих этапах исследования необходимо учесть возможность работы межмодульных соединений за пределами упругости, а также учесть существенно нелинейное поведение слайдерных сейсмоизоляторов для получения более корректной количественной оценки результатов сейсмических расчётов сейсмоизолированного модульного здания.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Purpose of research</title><p>Purpose of research. The aim of this research is to develop a constructive solution that ensures the earthquake resistance of a modular building in an area with a seismicity of 9 points on the MSK-64 scale. </p></sec><sec><title>Methods</title><p>Methods. The research uses a FEM computational model of a building with a modular structural system with reinforced concrete modules. Numerical analysis was performed using finite element modeling (FEM) in ANSYS and SCAD. A single computational model of the entire building was developed in SCAD, incorporating the monolithic part, modular part, and inter-module connections. The inter-module connections were modeled using special finite-stiffness elements. The stiffness of inter-module connections was determined through a 3D finite element model in ANSYS, which was also used to analyze stress distribution in the connections. The model accounted for all operational loads. In addition seismic loads were used, in compliance with valid Russian design codes for Vladikavkaz. The analysis assumed linear elastic material behavior for all structural components. During the calculations, the intensity of reinforcement in the building's load-bearing structures and the stress distribution in the most loaded inter-module joint are investigated. </p></sec><sec><title>Results</title><p>Results. The calculation results show that the use of seismic insulation significantly reduces the impact of seismic effects on the building, reducing the intensity of reinforcement to 55% (by more than 2 times) in the monolithic part and up to 60% in the modular part compared to a similar building without a seismic insulation system. Additionally, a reinforced inter-module connection design was proposed, which ensures compliance with strength requirements under seismic loading.</p></sec><sec><title>Conclusion</title><p>Conclusion. This study demonstrates that the required level of earthquake resistance is achieved because of the use of a seismic insulation system, thus, constructive solutions can be preserved. This study has an important practical benefit, which consists in preparing the calculation base for the construction of prefabricated modular reinforced concrete buildings in seismic areas. In subsequent research phases, it is necessary to account for the post-elastic behavior of inter-module connections, and the strongly nonlinear response of sliding seismic isolators. This will enable more accurate quantitative assessment of seismic performance calculations for modular buildings with base isolation systems.</p></sec></trans-abstract><kwd-group xml:lang="en"><kwd>modular building</kwd><kwd>seismic isolation</kwd><kwd>prefabricated reinforced concrete structure</kwd><kwd>seismic impact</kwd><kwd>dynamic analysis</kwd><kwd>reinforcement intensity</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">Bin Zhao, Di Wu, Huiqing Zhu. New modular precast composite shear wall structural system and experimental study on its seismic performance // Engineering Structures. August 2022. 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