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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">sovtends</journal-id><journal-title-group><journal-title xml:lang="ru">Современные тенденции в строительстве, градостроительстве и планировке территорий</journal-title><trans-title-group xml:lang="en"><trans-title>Modern Trends in Construction, Urban and Territorial Planning</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2949-1835</issn><publisher><publisher-name>Don State Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.23947/2949-1835-2024-3-1-15-26</article-id><article-id custom-type="edn" pub-id-type="custom">XWYIHN</article-id><article-id custom-type="elpub" pub-id-type="custom">sovtends-85</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 constructions, buildings and engineering structures</subject></subj-group></article-categories><title-group><article-title>Оптимизация положения опор под железобетонной плитой произвольной конфигурации</article-title><trans-title-group xml:lang="en"><trans-title>Optimisation of Supports’ Position for a Reinforced Concrete Slab of Arbitrary Geometry</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2911-0719</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ефименко</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Efimenko</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Екатерина Андреевна Ефименко, доцент кафедры железобетонных и каменных конструкций, кандидат технических наук</p><p> 344003, г. Ростов-на-Дону, пл. Гагарина, 1</p></bio><bio xml:lang="en"><p>Ekaterina A. Efimenko, Cand.Sci. (Engineering), Associate Professor of the Reinforced Concrete and Stone Structures Department</p><p>1, Gagarin Sq., Rostov-on-Don, 344003</p></bio><email xlink:type="simple">ovekaterina90@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Донской государственный технический университет<country>Россия</country></aff><aff xml:lang="en">Don State Technical University<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>04</month><year>2024</year></pub-date><volume>3</volume><issue>1</issue><fpage>15</fpage><lpage>26</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ефименко Е.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Ефименко Е.А.</copyright-holder><copyright-holder xml:lang="en">Efimenko E.A.</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.stsg-donstu.ru/jour/article/view/85">https://www.stsg-donstu.ru/jour/article/view/85</self-uri><abstract><sec><title>Введение</title><p>Введение. Ряд исследований в области рационального проектирования зданий и сооружений различного назначения, выполненных в последние годы, посвящены вопросам рационального расположения вертикальных элементов — колонн или опор. При этом большинство современных исследований и публикаций посвящены именно вопросам рационального расположения опор применительно к повышению эффективности балок. Что же касается исследований поведения железобетонных плит при вариативном расположении опор под ними, то данный вопрос в современных исследованиях освещен весьма скудно. Целью нынешнего исследования является именно выявление поведения плитных железобетонных конструкций здания в условиях вариативного расположения основных опор.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В данном численном эксперименте исследована железобетонная плита произвольной конфигурации с заданными толщиной ℎ, классом бетона с его характеристиками, а также классом арматуры и, соответственно, характеристиками арматуры. Помимо этого, решено задаться расстояниями от центров тяжести арматуры верхнего и нижнего ряда до поверхности плиты снизу и сверху 𝑎 , 𝑎 , 𝑎 , 𝑎 . Для плиты задано 𝑛 количество колонн. При этом количество колонн считается известным, а вот их положение может меняться. Кроме того, среди общего количества колонн могут быть выделены некоторые, расположение которых может быть определенным (неизменяемым), в то время как остальные опоры могут менять положение в поле плиты. При этом перед исследователями стоит задача определения именно рационального расположения смещаемых колонн.</p></sec><sec><title>Результаты исследования</title><p>Результаты исследования. В данной работе приведены результаты численного эксперимента по выявлению наиболее оптимального (рационального) расположения железобетонных колонн под плитой произвольной конфигурации. В работе на основе сразу нескольких критериев, таких как прогиб, потенциальная энергия деформации и расход арматурных изделий, сделан анализ рационального расположения опор под плитой и приведены функциональные зависимости изменения приведенных ранее параметров.</p></sec><sec><title>Обсуждение и заключения</title><p>Обсуждение и заключения. На основе собранных результатов численного эксперимента выполнен анализ поведения железобетонных плит заданной толщины при варьировании расположения опор под данной плитой,  а также проанализированы и собраны в функциональные зависимости изменения параметров работы плиты.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. A number of research held in recent years on rational design of buildings and structures built for different purposes study the rational position of the vertical members — columns or supports. However, the majority of up-to-date research and publications focus on elucidating the rational position of the supports in the context of improving the efficiency of the beams. Whereas the behaviour of the reinforced concrete slabs affected by changing the position of the supports is not covered well enough in the modern research. The present study is targeted exactly at revealing the behaviour of the reinforced concrete slab structures of a building in case of varying position of the main supports.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. During the present numerical experiment, a reinforced concrete slab of arbitrary geometry with the given thickness h, the concrete grade with the respective properties and the reinforcement possessing the properties according to its class, has been investigated. Additionally, it was decided to set the distance magnitudes from the centers of gravity of the upper and lower row of reinforcement to the bottom and top surface of the slab 𝑎𝑥, 𝑎′𝑥, 𝑎𝑦, 𝑎′𝑦. The number of columns n was set for the slab. It was considered that the number of columns was known, but their position could change. Moreover, among the total number of columns, there were distinguished the certain ones having the definite (constant) position, whereas the remaining supports could change their position within the slab area. Bearing in mind the above, the researchers were to solve the problem of rational position of the moveable columns.</p></sec><sec><title>Results</title><p>Results. This paper presents the results of the numerical experiment on identifying the most optimal (rational) position of the reinforced concrete columns supporting a slab of the arbitrary geometry. Based on the several parameters at once, such as deflection, potential strain energy and consumption of the reinforcement products, the analysis of the rational position of the supports under the slab was made and functional dependences on changing the above mentioned parameters have been presented in the work.</p><p>Discussion and conclusion. Based on the results obtained in the numerical experiment, the analysis of the behaviour of the reinforced concrete slabs of a set thickness upon changing the position of the supports under the slab was made and the changes of the slab operational parameters were analysed and compiled into the functional dependences. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>бетон</kwd><kwd>железобетон</kwd><kwd>опора</kwd><kwd>колонна</kwd><kwd>плита</kwd><kwd>арматура</kwd><kwd>прогиб</kwd><kwd>потенциальная энергия деформации</kwd><kwd>расход арматуры</kwd><kwd>рационализация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>concrete</kwd><kwd>reinforced concrete</kwd><kwd>support</kwd><kwd>column</kwd><kwd>slab</kwd><kwd>reinforcement</kwd><kwd>deflection</kwd><kwd>potential strain energy</kwd><kwd>consumption of the reinforcement</kwd><kwd>rationalisation</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">Романова Т.П. 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