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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">10.31675/1607-1859-2023-25-6-113-124</article-id><article-id custom-type="edn" pub-id-type="custom">WOJCIZ</article-id><article-id custom-type="elpub" pub-id-type="custom">vestniktgasu-1571</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>Напряженно-деформированное  состояние  пространственного  структурно-неоднородного  стержня</article-title><trans-title-group xml:lang="en"><trans-title>Stress-strain state of rod with heterogeneous structure (Novosibirsk)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3540-7631</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мищенко</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mishchenko</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мищенко Андрей Викторович, докт. техн. наук, доцент</p><p>630008, Новосибирск, ул. Ленинградская, 113; </p><p>630117, Новосибирск, ул. Иванова, 49</p></bio><bio xml:lang="en"><p>Andrey V. Mishchenko, DSc, A/Professor</p><p>113, Leningradskaya Str., 630008, Novosibirsk;</p><p> 49, Ivanov Str., 630117, Novosibirsk</p></bio><email xlink:type="simple">mavr59@ngs.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Новосибирский государственный архитектурно-строительный университет (Сибстрин); Новосибирское высшее военное командное ордена Жукова училище</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novosibirsk State University of Architecture and Civil Engineering; Order of Zhukov Novosibirsk Higher Military Command School</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>26</day><month>12</month><year>2023</year></pub-date><volume>25</volume><issue>6</issue><fpage>113</fpage><lpage>124</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мищенко А.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Мищенко А.В.</copyright-holder><copyright-holder xml:lang="en">Mishchenko A.V.</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/1571">https://vestnik.tsuab.ru/jour/article/view/1571</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Неоднородные конструкции обладают рядом существенных преимуществ перед классическими однородными. Регулирование их напряженно-деформированного состояния дает возможность более эффективно адаптировать систему к заданным термосиловым воздействиям и в результате получить дополнительные эффекты экономии массы и стоимости конструкции. Практическое использование неоднородных элементов конструкций в настоящее время требует создания инженерных методов расчета, обладающих приемлемой трудоемкостью, необходимой точностью и универсальностью.</p><p>Целью настоящей работы является совершенствование способов построения комплекса необходимых физических соотношений в задачах термосилового пространственного деформирования неоднородных стержней.</p></sec><sec><title>Методы исследования</title><p>Методы исследования. Для расчетной модели стержня Тимошенко применены аппроксимации функций поперечных сдвигов и мембранная аналогия для деформаций сдвига при кручении. Пространственный призматический стержень прямоугольного сечения образован из квазиоднородных частей (фаз), выполненных из различных конструкционных материалов.</p></sec><sec><title>Результаты</title><p>Результаты. Получены расчетные соотношения для термосилового пространственного изгиба с растяжением, поперечного сдвига и кручения. Данные уравнения содержат жесткостные характеристики нулевого, первого и второго порядков при изгибе с растяжением, сдвиговые и крутильную жесткости сечения. Их применение позволяет компактно сформулировать физические зависимости и краевую задачу пространственного деформирования неоднородного стержня.</p></sec></abstract><trans-abstract xml:lang="en"><p>Heterogeneous structures have a number of significant advantages over classical homogeneous. Their stress-strain state control allows to more effectively adapt the system to given thermal conditions and, as a result, additionally save weight and cost of the structure. The practical use of elements with heterogeneous structure, requires the creation of engineering calculation approaches with acceptable labor intensity, accuracy and versatility.</p><sec><title>Purpose</title><p>Purpose: The improvement of design methods implying physical relations in problems of thermal power deformation of rods with heterogeneous structure.</p></sec><sec><title>Design/methodology</title><p>Design/methodology: The Timoshenko rod model design involves the approximation of transverse shear functions and membrane analogy of shear deformation in torsion. A threedimensional prismatic rod having a rectangular cross-section, is obtained from quasi-homogeneous parts (phases) made of various structural materials.</p></sec><sec><title>Research findings</title><p>Research findings: Theoretical calculations are obtained for thermal power spatial bending with tension, transverse shear and torsion. These equations contain stiffness characteristics of zero, first- and second-order tensile bending, shear and torsional stiffnesses of the section.</p></sec><sec><title>Practical implication</title><p>Practical implication: These equations can be used to compactly formulate physical relations and the boundary value problem of spatial deformation of rods with heterogeneous structure.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>структурно-неоднородный стержень</kwd><kwd>пространственный изгиб</kwd><kwd>жесткостные характеристики неоднородного сечения</kwd><kwd>кручение неоднородного стержня</kwd><kwd>мембранная аналогия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rod with heterogeneous structure</kwd><kwd>spatial bending</kwd><kwd>rigidity</kwd><kwd>non-uniform section</kwd><kwd>torsion</kwd><kwd>membrane analogy</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">Мищенко А.В. 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