<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">veststu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Сибирского государственного университета путей сообщения</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Siberian State University of Transport</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1815-9265</issn><publisher><publisher-name>Сибирский государственный университет путей сообщения</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.52170/1815-9265_2024_71_35</article-id><article-id custom-type="elpub" pub-id-type="custom">veststu-134</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 И АРХИТЕКТУРА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BUILDING AND ARCHITECTURE</subject></subj-group></article-categories><title-group><article-title>Прочность узла анкеровки пучков напрягаемой арматуры при предварительном натяжении на бетон</article-title><trans-title-group xml:lang="en"><trans-title>The strength of the anchorage zone of tensioned reinforcement bundles at prestressing on concrete</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>Камалтдинов</surname><given-names>В. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Kamaltdinov</surname><given-names>V. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Рафаильевич Камалтдинов, ведущий специалист по расчетам строительных конструкций</p><p>Москва</p></bio><bio xml:lang="en"><p>Vladimir R. Kamaltdinov, Leading Specialist in the calculation of building structures</p><p>Moscow</p></bio><email xlink:type="simple">kamaltdinov@sts-hydro.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Марченко</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Marchenko</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Максим Сергеевич Марченко, технический директор</p><p>Москва</p></bio><bio xml:lang="en"><p>Maksim S. Marchenko, Technical Director</p><p>Moscow</p></bio><email xlink:type="simple">marchenko@sts-hydro.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горячкин</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Goryachkin</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владислав Сергеевич Горячкин, руководитель группы расчетов</p><p>Москва</p></bio><bio xml:lang="en"><p>Vladislav S. Goryachkin, Head of the calculation group</p><p>Moscow</p></bio><email xlink:type="simple">goryachkin@sts-hydro.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бойко</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Boiko</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Василий Владимирович Бойко, специалист по расчетам строительных конструкций</p><p>Москва</p></bio><bio xml:lang="en"><p>Vasiliy V. Boiko, Specialist in calculations of building structures</p><p>Moscow</p></bio><email xlink:type="simple">boiko@sts-hydro.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тулумбаев</surname><given-names>Р. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Tulumbaev</surname><given-names>R. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ренат Рашидович Тулумбаев, главный инженер проектов компании</p><p>Москва</p></bio><bio xml:lang="en"><p>Renat R. Tulumbaev, Chief Project Engineer</p><p>Moscow</p></bio><email xlink:type="simple">tulumbaev@sts-hydro.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>«СТС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>STS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2024</year></pub-date><volume>0</volume><issue>4</issue><issue-title>Спецвыпуск</issue-title><fpage>35</fpage><lpage>44</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Камалтдинов В.Р., Марченко М.С., Горячкин В.С., Бойко В.В., Тулумбаев Р.Р., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Камалтдинов В.Р., Марченко М.С., Горячкин В.С., Бойко В.В., Тулумбаев Р.Р.</copyright-holder><copyright-holder xml:lang="en">Kamaltdinov V.R., Marchenko M.S., Goryachkin V.S., Boiko V.V., Tulumbaev R.R.</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.vestnikstu.ru/jour/article/view/134">https://www.vestnikstu.ru/jour/article/view/134</self-uri><abstract><p>Анкерная зона преднапряженного арматурного элемента является критически важной областью железобетонной конструкции. Производитель системы преднапряжения несет ответственность только за локальную зону – область бетона, для которой подбирается косвенное армирование. Выполненный авторами анализ отечественной и иностранной литературы показал, что при использовании сложных форм анкерных устройств косвенное армирование затруднительно подбирать аналитическими методами, а изменения в его конструкции необходимо подтверждать натурными испытаниями.</p><p>В статье представлен опыт подбора косвенного армирования для анкера стаканного типа ОС-55 компании ООО «СТС», имеющего сложную форму и использующегося в системе предварительного напряжения защитной оболочки АЭС. Приведены требования к испытаниям анкерных зон. Выполнено описание расчетных схем с указанием применяемых моделей и свойств материалов, допущений в расчете. Описана методика испытания согласно европейским нормам, с указанием этапов нагружения, контролируемых параметров и схемой установки измерительных приборов. Приведены результаты расчетов, испытаний и их сравнение. Разница между расчетными и экспериментальными значениями перемещений опорной поверхности стакана составила не более 2,9 % при уровнях нагружения 80–105 % от разрывного усилия арматурного элемента. По методикам двух отечественных нормативных документов определены расчетные значения ширины раскрытия трещин на уровне нагрузки 80 % от разрывного усилия. Проведено сравнение теоретических и фактических значений, разница составила не более 3,5 %.</p><p>На основе сравнения результатов расчетов с экспериментальными данными, полученными при испытании, сделан вывод об успешной верификации принятой методики расчета анкерных зон.</p></abstract><trans-abstract xml:lang="en"><p>The anchorage zone of a prestressed reinforcement element is a critical area of the reinforced concrete structure. The manufacturer of the prestressing system is only responsible for the local area – the area of concrete for which the confinement(local) reinforcement is designed. The analysis of national and international literature carried out by the authors has shown that when using complex forms of anchoring devices, confinement (local) reinforcement is difficult to select by analytical methods, and changes in its design must be confirmed by full-scale tests.</p><p>The article presents the experience of local reinforcement design for the OS-55 bearing plate by STSd, which has a complex shape and is used in nuclear power plant (NPP) containment. Requirements for testing of anchor zones are given. The description of calculation schemes with indication of applied models and properties of materials, assumptions in calculation is made. Methodology of testing according to European standards with indication of stages of loading, controlled parameters and scheme of installation of measuring devices is described. The results of calculations, tests and their comparison are given. The difference between the calculated and experimental values of displacements of the support surface of the bearing plate was not more than 2.9 % at loading levels of 80-105 % of the characteristic ultimate resisting force of the tendon. According to the methods of two national codes the calculated values of crack opening widths at the loading level of 80 % of the characteristic ultimate resisting force were determined. The theoretical and actual values were compared, the difference was not more than 3.5 %.</p><p>On the basis of comparison of the calculation results with experimental data, obtained during testing, the conclusion about successful verification of the accepted methodology of anchor zone design was made.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>преднапряженный железобетон</kwd><kwd>анкерная зона</kwd><kwd>косвенное армирование</kwd><kwd>защитная оболочка</kwd></kwd-group><kwd-group xml:lang="en"><kwd>prestressed reinforced concrete</kwd><kwd>anchorage zone</kwd><kwd>indirect reinforcement</kwd><kwd>protective cover</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">Eurocode 2: Design of concrete structures. Part 1-1: General rules and rules for buildings. Brussels : European Committee for Standardization, 2004. 230 p.</mixed-citation><mixed-citation xml:lang="en">Eurocode 2: Design of concrete structures – Part 1-1: General rules and rules for buildings. Brussels: European Committee for Standardization; 2004. 230 p.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Methodological guide. Eurocode 2 application to concrete highway bridges. Paris : SETRA, 2007. 294 p.</mixed-citation><mixed-citation xml:lang="en">Methodological guide. Eurocode 2 application to concrete highway bridges. Paris: SETRA; 2007. 294 p.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">ACI 318-19. Building Code Requirements for Structural Concrete. Farmington Hills, MI : American Concrete Institute, 2019. 623 p.</mixed-citation><mixed-citation xml:lang="en">ACI 318-19. Building Code Requirements for Structural Concrete. Farmington Hills, MI: American Concrete Institute; 2019. 623 p.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">AASHTO Load and Resistance Factor Design. Bridge Design Specifications. Fifth edition. Washington, DC : American Association of State Highway and Transportation Officials, 2010. 1623 p.</mixed-citation><mixed-citation xml:lang="en">AASHTO Load and Resistance Factor Design. Bridge Design Specifications, fifth edition. Washington, DC: American Association of State Highway and Transportation Officials; 2010. 1623 p.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Post-Tensioning Manual. Sixth edition. Chapter VIII Anchorage zone design. Phoenix, AZ : Post-Tensioning Institute, 2000. 46 p.</mixed-citation><mixed-citation xml:lang="en">Post-Tensioning Manual, sixth edition. Chapter VIII Anchorage zone design. Phoenix, AZ: Post-Tensioning Institute; 2000. 46 p.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Jain Monika, Khapre Rajendra. Post-tensioned anchorage zone: A review // Structures. 2022. № 46. P. 31– 48.</mixed-citation><mixed-citation xml:lang="en">Monika Jain, Rajendra Khapre. Post-tensioned anchorage zone: A review. Structures. 2022;(46):31–48.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Axson Daniel. Ultimate bearing strength of post-tensioned local anchorage zones in lightweight concrete. Blacksburg, VA: Virginia Polytechnic Institute and State University, 2008. 92 p.</mixed-citation><mixed-citation xml:lang="en">Daniel Axson. Ultimate bearing strength of post-tensioned local anchorage zones in lightweight concrete. Blacksburg, VA: Virginia Polytechnic Institute and State University; 2008. 92 p.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">СП 35.13330.2011. Мосты и трубы : актуализированная редакция СНиП 2.05.03-84* : [с изменениями № 1, 2, 3 ]. Москва : Стандартинформ, 2019. 340 с.</mixed-citation><mixed-citation xml:lang="en">SP 35.13330.2011 Bridges and culverts Actualised edition of SNiP 2.05.03-84* [with revisements No. 1, 2, 3]. Moscow: Standartinform; 2019. 340 p. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Гибшман Е. Е., Гибшман М. Е. Теория и расчет предварительно напряженных железобетонных мостов. Москва : Автотрансиздат, 1963. 393 с.</mixed-citation><mixed-citation xml:lang="en">Gibshman E. E., Gibshman M. E. Theory and analysis of prestressed reinforced concrete bridges. Moscow: Avtotransizdat; 1963. 393 p. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">EAD-160004-00-0301. Post-tensioning kits for prestressing of structures. EU : publishes by EOTA, 2016. 102 p.</mixed-citation><mixed-citation xml:lang="en">EAD-160004-00-0301. Post-tensioning kits for prestressing of structures. EU: publishes by EOTA; 2016. 102 p.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">СТО 95 12006–2017. Объекты использования атомной энергии. Система предварительного напряжения защитной оболочки реакторного отделения атомной электрической станции. Общие требования. Москва : Росатом, 2017. 23 c.</mixed-citation><mixed-citation xml:lang="en">STO 95 12006-2017. Nuclear power facilities. Pre-stressing system for reactor containment building of a nuclear power plant. General requirements. Moscow, Rosatom; 2017. 23 p. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">СП 63.13330.2018. Бетонные и железобетонные конструкции. Основные положения : [c изменениями № 1, 2]. Москва : РСТ, 2022. 140 с.</mixed-citation><mixed-citation xml:lang="en">SP 63.13330.2018. Concrete and reinforced concrete structures. General provisions [with revisements No. 1, 2]. Moscow, RST; 2022. 140 p. (In Russ.).</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
