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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">vestniktgasu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Томского государственного архитектурно-строительного университета</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1607-1859</issn><issn pub-type="epub">2310-0044</issn><publisher><publisher-name>Tomsk State University of Architecture and Building</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31675/1607-1859-2024-26-6-112-121</article-id><article-id custom-type="edn" pub-id-type="custom">LIHOCL</article-id><article-id custom-type="elpub" pub-id-type="custom">vestniktgasu-1921</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 AND CONSTRUCTION</subject></subj-group></article-categories><title-group><article-title>Динамическая устойчивость фиброполипропилен-армированных бетонов</article-title><trans-title-group xml:lang="en"><trans-title>Dynamic Stability of Polypropylene FiberReinforced 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>Корнеева</surname><given-names>И. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Korneeva</surname><given-names>I. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Корнеева Инна Геннадьевна, канд. техн. Наук</p><p>664074, г. Иркутск, ул. Лермонтова, 83</p></bio><bio xml:lang="en"><p>Inna G. Korneeva, PhD</p><p>83, Lermontov Str., 664074, Irkutsk</p></bio><email xlink:type="simple">korneeinna@yandex.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>Пинус</surname><given-names>Б. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Pinus</surname><given-names>B. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пинус Борис Израилевич, докт. техн. наук, профессор</p><p>664074, г. Иркутск, ул. Лермонтова, 83</p></bio><bio xml:lang="en"><p>Boris I. Pinus, DSc, Professor</p><p>83, Lermontov Str., 664074, Irkutsk</p></bio><email xlink:type="simple">pinusb@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Иркутский национальный исследовательский технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk National Research Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>02</day><month>01</month><year>2025</year></pub-date><volume>26</volume><issue>6</issue><fpage>112</fpage><lpage>121</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Корнеева И.Г., Пинус Б.И., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Корнеева И.Г., Пинус Б.И.</copyright-holder><copyright-holder xml:lang="en">Korneeva I.G., Pinus B.I.</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://vestnik.tsuab.ru/jour/article/view/1921">https://vestnik.tsuab.ru/jour/article/view/1921</self-uri><abstract><p>В работе представлен сравнительный анализ усталостных последствий в обычных и фиброармированных цементно-матричных композитах (фиброполипропилен-армированных бетонов) в процессе немногократно повторных нагружений.Актуальность. Учет последствий малоцикловой усталости на стадии принятия проектных решений.Цель. Оценить усталостные изменения обычных и фиброармированных цементно-матричных композитов в процессе немногократно повторных нагружений с нулевым коэффициентом асимметрии и амплитудой 0,6–0,9. Немногократным циклическим воздействиям подвергнуты образцы двух серий: из обычного бетона и фибробетона с полипропиленовыми волокнами эквивалентным диаметром 0,8 мм и длиной 40 мм с объемным процентом армирования 1,5 %.Методы. Использована методика автоматизированного многофакторного контроля всех деформаций и их структурно-значимых компонентов. Динамические испытания выполнялись на испытательном комплексе Instron 5989 в жестком режиме изменения нагрузки с регламентированной скоростью деформирования образца 0,04 мм/с. Измерение деформаций производилось на полной базе в двух направлениях. Фиксация контролируемых параметров велась через каждые 10 циклов воздействий – до 300 циклов. Структурный анализ деформативности проводился с учетом физических закономерностей их развития. В качестве критериальных параметров внутреннего сопротивления приняты показатели остаточных деформаций и цикловая кинетика приращений деформаций.Выводы. Установлены повышенная демпфирующая способность фиброкомпозита, больший потенциал усталостного сопротивления при флуктуации напряженного состояния.Эта работа является переводом оригинальной статьи, опубликованной на английском языке: Korneeva I.G., Pinus B.I. Dynamical stability of polypropylene fibre reinforced concrete // AIP Conf. Proc. 2022. V. 2434. P. 020006 с разрешения AIP Publishing. Публикация на русском языке позволит русскоязычным читателям получить новую информацию без перевода англоязычной версии статьи, при котором возможна некоторая потеря смыслового содержания текста.</p></abstract><trans-abstract xml:lang="en"><p>The paper presents a comparative fatigue analysis of conventional and fiber-reinforced cement matrix composites under few repeated loads. Consideration of low-cycle fatigue at a design stage.Purpose: The aim of the work is to evaluate fatigue changes in conventional and fiber-reinforced cement matrix composites during repeated loads with zero asymmetry coefficient and 0.6–0.9 amplitude. Subjected to low cyclic loads are ordinary concrete and polypropylene fiber reinforced concrete with an equivalent diameter 0.8 mm and 40 mm length with 1.5 vol.% reinforcement.Methodology: Automated multi-factor strain control indicating structurally relevant components. Dynamic tests are performed on an Instron 5989 testing machine using a hard mode of the load change at 0.04 mm/s strain rate. Strain is measured in two directions. Control parameters are recorded after each 10 cycles until 300 cycles. Residual strain and cyclic kinetics of incremental strain are the key parameters of internal resistance.Value: Detected are the higher damping ability of the fiber composite and higher fatigue resistance potential at the stress-state fluctuation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>усталость</kwd><kwd>фибробетон</kwd><kwd>деформации</kwd><kwd>циклические воздействия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fatigue</kwd><kwd>fiber reinforced concrete</kwd><kwd>deformation</kwd><kwd>cyclic effect</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">Берг О.Я. Физические основы теории прочности бетона и железобетона. 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