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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">10.37538/0005-9889-2024-2(621)-13-19</article-id><article-id custom-type="elpub" pub-id-type="custom">bzhb-129</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>Исследование прочности внецентренно сжатых бетонных элементов, армированных композитной арматурой</article-title><trans-title-group xml:lang="en"><trans-title>Research of strength of unaxial compressed concrete elements reinforced with FRP</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>Мухамедиев</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Mukhamediev</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тахир Абдурахманович Мухамедиев, д-р техн. наук, главный научный сотрудник лаборатории теории железобетона и конструктивных систем, НИИЖБ им. А.А. Гвоздева АО «НИЦ «Строительство», Москва</p><p>e-mail: takhir50@rambler.ru</p></bio><bio xml:lang="en"><p>Takhir A. Mukhamediev, Dr. Sci. (Engineering), Chief Researcher of the Laboratory of Theory of Reinforced Concrete and Structural Systems, Research Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev, JSC Research Center of Construction, Moscow</p><p>e-mail: takhir50@rambler.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>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>Кудяков</surname><given-names>К. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudyakov</surname><given-names>K. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Константин Львович Кудяков, канд. техн. наук, ведущий научный сотрудник лаборатории коррозии и долговечности бетонных и ж/б конструкций, НИИЖБ им. А.А. Гвоздева АО «НИЦ «Строительство»; доцент кафедры железобетонных и каменных конструкций, НИУ МГСУ, Москва</p></bio><bio xml:lang="en"><p>Konstantin L. Kudyakov, Cand. Sci. (Engineering), Leading Researcher at the Laboratory of Corrosion and Durability of Concrete and Reinforced Concrete Structures, Research Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev, JSC Research Center of Construction; Associate Professor of the Department of Reinforced Concrete and Stone Structures, Moscow State University of Civil Engineering, Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Научно-исследовательский, проектно-конструкторский и технологический институт бетона и железобетона (НИИЖБ) им. А.А. Гвоздева АО «НИЦ «Строительство»<country>Россия</country></aff><aff xml:lang="en">Research Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev, JSC Research Center of Construction<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Научно-исследовательский, проектно-конструкторский и технологический институт бетона и железобетона (НИИЖБ) им. А.А. Гвоздева АО «НИЦ «Строительство»; ФГБОУ ВО «Национальный исследовательский Московский государственный строительный университет» (НИУ МГСУ)<country>Россия</country></aff><aff xml:lang="en">Research Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev, JSC Research Center of Construction; Moscow State University of Civil Engineering (National Research University)<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>31</day><month>07</month><year>2024</year></pub-date><volume>621</volume><issue>2</issue><fpage>13</fpage><lpage>19</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; АО «НИЦ «Строительство», 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">АО «НИЦ «Строительство»</copyright-holder><copyright-holder xml:lang="en">АО «НИЦ «Строительство»</copyright-holder><license xlink:href="https://www.bzhb.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.bzhb.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.bzhb.ru/jour/article/view/129">https://www.bzhb.ru/jour/article/view/129</self-uri><abstract><sec><title>Введение</title><p>Введение. Возможность применения композитной арматуры в строительстве рассматривалась еще в 1960-х годах. Актуальность применения такой арматуры в конструкциях из бетона была связана с необходимостью повышения долговечности дорожных конструкций и морских сооружений. Широкому внедрению и изучению препятствовало отсутствие налаженного промышленного производства композитной арматуры вплоть до 1980-х годов. По состоянию на сегодняшний день отечественная нормативная база имеет СП 295.1325800.2017 для проектирования бетонных конструкций, армированных композитной арматурой. В связи с недостаточной изученностью вопроса для расчета прочности внецентренно сжатых элементов в своде правил используют приближенную методику, которая приводит к недооценке прочности внецентренно сжатых элементов. В связи с этим возникла необходимость экспериментального исследования работы внецентренно сжатых бетонных элементов, армированных композитной арматурой, и уточнения методики расчета прочности нормальных сечений таких элементов.</p></sec><sec><title>Цель</title><p>Цель. Проведение экспериментальных исследований прочности нормальных сечений внецентренно сжатых бетонных элементов, армированных композитной арматурой.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Экспериментальные исследования проведены путем испытания опытных бетонных образцов, армированных композитной арматурой, на действие внецентренно приложенной статической сжимающей нагрузки.</p></sec><sec><title>Результаты</title><p>Результаты. Получены экспериментальные данные о прочности нормальных сечений внецентренно сжатых бетонных элементов, армированных композитной арматурой.</p></sec><sec><title>Выводы</title><p>Выводы. По результатам экспериментальных исследований были определены разрушающие нагрузки, установлены схемы трещинообразования, определены прогибы опытных образцов. В процессе испытаний установлено, что опытные значения разрушающих нагрузок опытных образцов на 15–32 % выше их расчетных значений, вычисленных по указаниям действующего свода правил.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The possibility of FRP using in construction was considered back in the 1960s. The relevance of FRP using in concrete structures was associated with the need to increase the durability of road and marine structures. The widespread introduction and study was hindered by the lack of well-established industrial production of composite reinforcement until the 1980s. As of today, the Russian regulatory framework has a set of rules SP 295.1325800.2017 for the design of concrete structures reinforced with FRP. However, due to the insufficient study of the issue, in this set of rules, an approximate method is used to calculate the strength of unaxial compressed elements, which leads to an underestimation of the strength of unaxial compressed elements. This circumstance leads to an increase in the consumption of materials in the design of such structures. In this regard, it seems necessary to investigate the operation of unaxial compressed concrete elements reinforced with FRP and develop proposals for a refined methodology for calculating the strength of normal sections of such elements.</p></sec><sec><title>Aim</title><p>Aim. Conduct experimental studies of the bearing capacity of normal sections of unaxial compressed concrete elements reinforced with FRP.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Experimental studies were carried out by testing of experimental concrete samples reinforced with FRP, with unaxial static compressive load. The research was carried out taking into account the requirements of the current regulations.</p></sec><sec><title>Results</title><p>Results. Experimental data on the strength of normal cross sections of unaxial compressed concrete elements reinforced with FRP have been obtained.</p></sec><sec><title>Conclusions</title><p>Conclusions. According to the results of experimental studies, destructive loads were determined, crack formation patterns were established, and deflections of test samples were determined. During the tests, it was found that the experimental values of the destructive loads of the test samples are 15–32 % higher than their calculated values calculated according to the instructions of the current set of rules.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>конструкции</kwd><kwd>прочность</kwd><kwd>композитная полимерная арматура</kwd><kwd>бетон</kwd><kwd>внецентренное сжатие</kwd><kwd>экспериментальные исследования</kwd></kwd-group><kwd-group xml:lang="en"><kwd>structures</kwd><kwd>strength</kwd><kwd>FRP</kwd><kwd>concrete</kwd><kwd>unaxial compression</kwd><kwd>experimental investigation</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследование выполнено за счет собственных средств АО «НИЦ «Строительство».</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The study was carried out at the expense of own funds of JSC Research Center of Construction.</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">CNR-DT 203/2006. 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