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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">bzhb</journal-id><journal-title-group><journal-title xml:lang="ru">Бетон и железобетон</journal-title><trans-title-group xml:lang="en"><trans-title>Concrete and Reinforced Concrete</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0005-9889</issn><issn pub-type="epub">3034-1302</issn><publisher><publisher-name>АО «НИЦ «Строительство»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37538/0005-9889-2024-4(623)-18-28</article-id><article-id custom-type="edn" pub-id-type="custom">YINKOU</article-id><article-id custom-type="elpub" pub-id-type="custom">bzhb-146</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 STRUCTURES, BUILDINGS AND STRUCTURES</subject></subj-group></article-categories><title-group><article-title>К назначению длины нахлесточных соединений сжатой арматуры в одном расчетном сечении железобетонных элементов</article-title><trans-title-group xml:lang="en"><trans-title>To assign the length of overlapping joints of compressed reinforcement in one design section of reinforced concrete elements</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>Зенин</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zenin</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Алексеевич Зенин*, канд. техн. наук, заведующий лабораторией теории железобетона и конструктивных систем, НИИЖБ им. А.А. Гвоздева АО «НИЦ «Строительство», Москва</p><p>e-mail: lab01@mail.ru</p></bio><bio xml:lang="en"><p>Sergey A. Zenin*, Cand. Sci. (Engineering), Head of the Laboratory of the Theory of Reinforced Concrete and Constructive Systems, Research Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev, JSC Research Center of Construction, Moscow</p><p>e-mail: lab01@mail.ru</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сычев</surname><given-names>К. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Sychev</surname><given-names>K. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Константин Денисович Сычев, аспирант, АО «НИЦ «Строительство»; главный специалист-конструктор, ООО «Проектное бюро АПЕКС», Москва</p></bio><bio xml:lang="en"><p>Konstantin D. Sychev, Graduate Student, JSC ResearchCenter of Construction; Chief Design Specialist, LLC APEX Design Bureau, Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский, проектно-конструкторский и технологический институт бетона и железобетона (НИИЖБ) им. А.А. Гвоздева АО «НИЦ «Строительство»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev, JSC Research Center of Construction</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>АО «НИЦ «Строительство»; ООО «Проектное бюро АПЕКС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>JSC Research Center of Construction; LLC APEX Design Bureau</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>29</day><month>11</month><year>2024</year></pub-date><volume>623</volume><issue>4</issue><fpage>18</fpage><lpage>28</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зенин С.А., Сычев К.Д., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Зенин С.А., Сычев К.Д.</copyright-holder><copyright-holder xml:lang="en">Zenin S.A., Sychev K.D.</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.bzhb.ru/jour/article/view/146">https://www.bzhb.ru/jour/article/view/146</self-uri><abstract><sec><title>Введение</title><p>Введение. Нахлесточные соединения арматуры в монолитных железобетонных конструкциях являются наиболее распространенными, т. к. обладают достаточной простотой и низкой трудоемкостью при устройстве на строительной площадке. При проектировании таких соединений в конструкциях, подверженных сжимающей нагрузке, часто возникают вопросы, связанные с необходимостью устройства увеличенной длины нахлеста сжатой арматуры в соответствии с требованиями отечественных нормативных документов.</p></sec><sec><title>Цель</title><p>Цель. Анализ современной практики проектирования, а также имеющихся экспериментальных исследований несущей способности сжатых железобетонных элементов с нахлесточными соединениями арматуры, расположенными в одном расчетном сечении.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Анализ выполнялся путем изучения положений отечественной и зарубежной нормативно-технической документации, а также результатов экспериментальных исследований, имеющихся в общем доступе.</p></sec><sec><title>Результаты</title><p>Результаты. Систематизированы данные по имеющимся в практике проектирования методикам определения длины нахлеста сжатой арматуры, в том числе при расположении стыков в одном расчетном сечении.</p></sec><sec><title>Выводы</title><p>Выводы. По результатам работы были проанализированы существующие подходы по назначению длины нахлестки сжатой арматуры, расположенной в одном расчетном сечении железобетонных конструкций. Рассмотрены методики, принятые в российских и зарубежных нормативно-технических документах, а также опытные исследования по данной тематике. По результатам анализа имеющихся данных можно сказать, что проведение дополнительных исследований по оценке влияния длины нахлестки сжатой арматуры на прочность железобетонных элементов может позволить оптимизировать их конструктивные решения без снижения необходимого уровня надежности.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Overlapping reinforcement joints in monolithic reinforced concrete structures are the most common, because they have sufficient simplicity and low labor intensity when installed on a construction site. When designing such joints in structures subject to compressive load, questions often arise related to the need to arrange an increased overlap length of compressed reinforcement in accordance with the requirements of domestic regulatory documents.</p></sec><sec><title>Aim</title><p>Aim. The aim of the work is an analysis of modern design practice, as well as available experimental studies of the bearing capacity of compressed reinforced concrete elements with overlapping reinforcement joints located in the same design section.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The analysis was carried out by studying the provisions of domestic and foreign regulatory and technical documentation, as well as the results of experimental studies available in the public domain.</p></sec><sec><title>Results</title><p>Results. The data on the methods available in the design practice for determining the overlap length of compressed reinforcement are systematized, including the case, when the joints are located in the same design section.</p></sec><sec><title>Conclusions</title><p>Conclusions. Based on the results of the work, the existing approaches for assigning the length of the overlap of compressed reinforcement located in the same design section of reinforced concrete structures were analyzed. The methods adopted in Russian and foreign regulatory and technical documents, as well as experimental research on this topic, are considered. Based on the results of the analysis of the available data, it can be said that additional studies to assess the effect of the overlap length of the compressed reinforcement on the strength of reinforced concrete elements can optimize their design solutions – without reducing the required level of reliability.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>железобетон</kwd><kwd>конструкции</kwd><kwd>прочность</kwd><kwd>соединение арматуры</kwd><kwd>нахлест</kwd><kwd>сжатие</kwd></kwd-group><kwd-group xml:lang="en"><kwd>reinforced concrete</kwd><kwd>structures</kwd><kwd>strength</kwd><kwd>reinforcement connection</kwd><kwd>overlap</kwd><kwd>compression</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках договорных работ между АО «НИЦ «Строительство» и ФАУ «ФЦС».</funding-statement><funding-statement xml:lang="en">The study was carried out within the framework of contractual works of JSC Research Center of Construction and Federal Autonomous Institution “Federal Center for Regulation, Standardization and Technical Assessment in Construction” (FAU “FCC”).</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">СП 63.13330.2018. 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