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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">inbure</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Инвестиции. Строительство. Недвижимость</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya vuzov. Investitsii. Stroitelstvo. Nedvizhimost</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2227-2917</issn><issn pub-type="epub">2500-154X</issn><publisher><publisher-name>Irkutsk National Research Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/2227-2917-2021-2-284-289</article-id><article-id custom-type="elpub" pub-id-type="custom">inbure-33</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>ТЕХНИЧЕСКИЕ НАУКИ. СТРОИТЕЛЬСТВО</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TECHNICAL SCIENCES. CONSTRUCTION</subject></subj-group></article-categories><title-group><article-title>Исследование влияния предыстории деформирования на усталостное сопротивление бетона и фибробетона</article-title><trans-title-group xml:lang="en"><trans-title>Impact of deformation history on the resistance of concrete and fibre-reinforced concrete to fatigue damage</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6130-0195</contrib-id><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, старший преподаватель кафедры строительного производства</p><p>664074, г. Иркутск, ул. Лермонтова, 83</p></bio><bio xml:lang="en"><p>Inna G. Korneeva, Senior Lecturer of the Department of Building Production</p><p>83 Lermontov St., Irkutsk 664074</p></bio><email xlink:type="simple">kornee-inna@yandex.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/0000-0002-3067-9478</contrib-id><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, доктор технических наук, профессор кафедры строительного производства</p><p>664074, г. Иркутск, ул. Лермонтова, 83</p></bio><bio xml:lang="en"><p>Boris I. Pinus, Dr. Sci. (Eng.), Professor of the Department of Building Production</p><p>83 Lermontov St., Irkutsk 664074</p></bio><email xlink:type="simple">pinus@istu.edu</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>2021</year></pub-date><pub-date pub-type="epub"><day>07</day><month>11</month><year>2023</year></pub-date><volume>11</volume><issue>2</issue><fpage>284</fpage><lpage>289</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Корнеева И.Г., Пинус Б.И., 2023</copyright-statement><copyright-year>2023</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://inbure.elpub.ru/jour/article/view/33">https://inbure.elpub.ru/jour/article/view/33</self-uri><abstract><p>Цель работы заключается в экспериментально-аналитической оценке влияния предыстории нагружения на деформационный отклик обычных и фиброармированных бетонов. Исследования включали монотонные квазистатические и динамические испытания двух серий образцов. Механическим испытаниям предшествовал ультразвуковой и весовой контроль однородности по массе. Испытания контрольных призматических образцов велись в режиме постоянства скорости деформирования (0,004 мм/с) на комплексе Instron 5989 с автоматической записью деформаций, усилий, времени и энергии поглощения. Деформации в обоих направлениях измерялись на полной базе с помощью системных (Instron) экстензометров. В работе анализируются результаты экспериментальных исследований усталостного поведения обычного и фиброполипропилен армированного бетона, подвергнутого 2-этапным циклическим нагружениям различной амплитуды. В качестве контролируемых критериальных показателей малоцикловой усталости приняты показатели линейной и объемной деформативности. Усталостная устойчивость бетона и фибробетона оценивалась сравнением соответствующих критериальных параметров деформирования образцов при различных режимах циклических воздействий. При сравнительном сходстве динамики контролируемых параметров малоцикловой усталости имеются существенные отличия в количественных значениях. Установлено, что частота и последовательность умеренных (η ≤ Rν   ) воздействий не оказывают существенного влияния на усталостное сопротивление. Поведение композита при высоких уровнях циклических воздействий зависит от предыстории деформирования.</p></abstract><trans-abstract xml:lang="en"><p>An experimental and analytical study into the impact of deformation history on the deformation response of conventional and fibre-reinforced concrete was conducted. Experiments included monotonic quasi-static and dynamic tests of two series of samples. Ultrasonic and gravimetric homogeneity control by mass was performed prior to mechanical tests. Prismatic reference samples were tested under uniform deformation velocity (0.004 mm/s) on an Instron 5989 complex with automatic recording of deformations, loadings, time and absorption energy. Deformations were measured in both directions at the total base using system (Instron) extensometers. The paper analyses the experimental results on the fatigue behaviour of conventional and polypropylene fibre-reinforced concrete subjected to two-stage cyclic stress with various amplitudes. Parameters of linear and bulk deformability were used as a characteristic under control for low-cyclic fatigue. The fatigue resistance of concrete and fibrereinforced concrete was assessed by comparing the corresponding characteristics of sample deformation under various modes of cyclic action. Relative similarities in the parameter dynamics of controlled low-cyclic fatigue show significant differences in quantitative values. It was established that the frequency and sequence of moderate (з ≤ Rнcrc) actions have a limited effect on fatigue resistance. The composite behaviour at high-level cyclic stress depends on the deformation history.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>бетон</kwd><kwd>фибробетон</kwd><kwd>малоцикловая усталость</kwd><kwd>деформативность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>concrete</kwd><kwd>fibre concrete</kwd><kwd>low-cycle fatigue</kwd><kwd>deformability</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">Рабинович Ф.Н. Композиты на основе дисперсно-армированных бетонов: вопросы теории и проектирования, технология, конструкции: монография. М.: АСВ, 2004. 563 с.</mixed-citation><mixed-citation xml:lang="en">Rabinovich FN. Composites based on dispersedly-reinforced concrete: questions on theory and design, technology, constructions: monograph. 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