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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">concconc</journal-id><journal-title-group><journal-title xml:lang="ru">Железобетонные конструкции</journal-title><trans-title-group xml:lang="en"><trans-title>Reinforced concrete structures</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2949-1622</issn><issn pub-type="epub">2949-1614</issn><publisher><publisher-name>Национальный исследовательский Московский государственный строительный университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22227/2949-1622.2023.3.32-48</article-id><article-id custom-type="elpub" pub-id-type="custom">concconc-22</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>ТЕОРИЯ БЕТОНА И ЖЕЛЕЗОБЕТОНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>THEORY OF CONCRETE AND REINFORCED CONCRETE</subject></subj-group></article-categories><title-group><article-title>Оценка эффективности применения винтовой арматуры класса Ав600П в сжатых железобетонных элементах</article-title><trans-title-group xml:lang="en"><trans-title>Assessment of Effectiveness of Av600P Screw Reinforcement in Compressed Reinforced Concrete Elements</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8143-4614</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Окольникова</surname><given-names>Галина Эриковна</given-names></name><name name-style="western" xml:lang="en"><surname>Okolnikova</surname><given-names>Galina E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, доцент</p></bio><bio xml:lang="en"><p>Candidate of Technical Sciences, Associate Professor, Associate Professor of the Department of Civil Engineering; Associate Professor of the Department of Reinforced Concrete and Masonry Structures </p></bio><email xlink:type="simple">okolnikova_ge@mail.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/0000-0002-7010-4118</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тихонов</surname><given-names>Георгий Игоревич</given-names></name><name name-style="western" xml:lang="en"><surname>Tikhonov</surname><given-names>Georgy I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант; инженер-конструктор центра №21 НИИЖБ им. А.А. Гвоздева</p><p> </p><p> </p></bio><bio xml:lang="en"><p>post-graduate student; design engineer of center №21, NIIZHB n.a. A.A. Gvozdev </p></bio><email xlink:type="simple">dwarwe1993@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Российский университет дружбы народов (РУДН)<country>Россия</country></aff><aff xml:lang="en">Peoples' Friendship University of Russia (RUDN University); Moscow State University of Civil Engineering (National Research University) (MGSU)<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Российский университет дружбы народов (РУДН); АО НИЦ «Строительство»<country>Россия</country></aff><aff xml:lang="en">RUDN University; JSC "SIC "Construction"<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>19</day><month>07</month><year>2023</year></pub-date><volume>3</volume><issue>3</issue><fpage>32</fpage><lpage>48</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Окольникова Г.Э., Тихонов Г.И., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Окольникова Г.Э., Тихонов Г.И.</copyright-holder><copyright-holder xml:lang="en">Okolnikova G.E., Tikhonov G.I.</copyright-holder><license 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.g-b-k.ru/jour/article/view/22">https://www.g-b-k.ru/jour/article/view/22</self-uri><abstract><p>Статья посвящена исследованиям применения арматуры нового винтового профиля для армирования железобетонных конструкций. В статье представлены результаты экспериментальных исследований образцов-призм с винтовой четырёхрядной арматурой диаметром 20 и 32 мм класса Ав600П и бетоном классов В30 и В60 при статическом нагружении при сжатии. Целью исследований являлось обоснование внедрения в практику строительства инновационного винтового профиля арматуры, который разовьёт идеи и принципы, ставшие основой для нашедшего широкое применение шестирядного профиля А500СП, чьё конструктивное решение (отсутствие продольных рёбер с расположением поперечных выступов в четыре ряда с возможным образованием ими двухзаходной винтовой резьбы) позволяет значительно увеличить браковочное минимальное значение критерия Рема (fR ≥ 0,075), характеризующего и определяющего прочность и деформативность сцепления арматуры с бетоном, от которых зависят прочность и трещиностойкость железобетонных конструкций, а, следовательно, их эксплуатационная безопасность и надёжность. Муфтовые соединения винтовой арматуры позволяют значительно ускорить процесс арматурных работ на строительной площадке в результате замены ими трудоёмких и дорогостоящих сварных соединений. Результаты исследований показали эффективность применения новой винтовой арматуры класса Ав600П для армирования сжатых железобетонных элементов, изготовленных из бетонов классов В30÷В60 с муфтовыми резьбовыми контактными, частично контактными и бесконтактными стыковыми соединениями арматуры.</p></abstract><trans-abstract xml:lang="en"><p>The article is devoted to the research of application of reinforcing steel of a new spiral profile for reinforcement of reinforced concrete constructions. The article presents the results of experimental studies of prism specimens with screw four-row reinforcement with diameters of 20 and 32 mm of class Av600P and concrete of classes B30 and B60 under static compression loading. The purpose of the research was to justify the introduction into practice of the construction of an innovative screw reinforcement profile, which will develop the ideas and principles that have become the basis for the widely used six-row A500SP profile, whose design solution (the absence of longitudinal ribs with the arrangement of transverse protrusions in four rows with the possible formation of a two-start screw thread by them) makes it possible to significantly increase the rejection minimum value of the Röhm criterion (fR ≥ 0.075), which characterizes and determines the strength and deformability of the adhesion of reinforcement to concrete, which determine the strength and crack resistance of reinforced concrete structures, and, consequently, their operational safety and reliability. The coupling joints of screw reinforcement can significantly speed up the process of reinforcing work at the construction site as a result of replacing labor-intensive and expensive welded joints. The results of the research showed the effectiveness of application of new screw reinforcement of the Av600P class for reinforcing compressed reinforced concrete elements made of concrete of classes B30÷B60 with coupling threaded contact, partially contact and non-contact butt joints of the reinforcement.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>винтовая арматура</kwd><kwd>железобетон</kwd><kwd>двухзаходная винтовая резьба</kwd><kwd>муфтовые соединения</kwd><kwd>прочность на сжатие</kwd></kwd-group><kwd-group xml:lang="en"><kwd>screw reinforcement</kwd><kwd>reinforced concrete</kwd><kwd>two-start screw thread</kwd><kwd>coupling joints</kwd><kwd>compressive strength</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">Тихонов И.Н., Блажко В.П., Тихонов Г.И., Казарян В.А., Краковский М.Б., Цыба О.О. 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