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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">construction</journal-id><journal-title-group><journal-title xml:lang="ru">Строительство и реконструкция</journal-title><trans-title-group xml:lang="en"><trans-title>Building and Reconstruction</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7416</issn><publisher><publisher-name>Орловский государственный университет имени И.С. Тургенева</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33979/2073-7416-2025-117-1-26-39</article-id><article-id custom-type="elpub" pub-id-type="custom">construction-849</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 ИНЖЕНЕРНЫХ СООРУЖЕНИЙ. СТРОИТЕЛЬНЫЕ КОНСТРУКЦИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>THEORY OF ENGINEERING STRUCTURES. BUILDING UNITS</subject></subj-group></article-categories><title-group><article-title>Изгибная жесткость болтовых фланцевых соединений балки с колонной</article-title><trans-title-group xml:lang="en"><trans-title>Bending rigidity of bolt end-plate connections of joint beam to column</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>Сунь</surname><given-names>Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Sun</surname><given-names>G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сунь Гофэн, аспирант кафедры строительных конструкций и механик грунтов </p><p>Екатеринбург</p></bio><bio xml:lang="en"><p>Sun Guofeng, graduate student of the dep. of civil engineering and soil mechanics </p><p>Yekaterinburg </p></bio><email xlink:type="simple">gofen.sun@urfu.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>Миронова</surname><given-names>Л. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Mironova</surname><given-names>L. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Миронова Людмила Ивановна, д-р пед. наук, канд. техн. наук, проф. кафедры строительных конструкций и механик грунтов</p><p>Екатеринбург</p></bio><bio xml:lang="en"><p>Mironova Lyudmila I., doctor in ped. sc., candidate in tech. sc., prof. of the dep. of civil engineering and soil mechanics </p><p>Yekaterinburg </p></bio><email xlink:type="simple">mironovali@urfu.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>Лю</surname><given-names>Ч.</given-names></name><name name-style="western" xml:lang="en"><surname>Liu</surname><given-names>Ch.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лю Чун, аспирант кафедры технологии и организации строительства </p><p>Екатеринбург</p></bio><bio xml:lang="en"><p>Liu Chong, graduate student at the department of construction technology and organization </p><p>Yekaterinburg </p></bio><email xlink:type="simple">lc996463232@163.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Уральский федеральный университет имени первого Президента России Б.Н. Ельцина</institution></aff><aff xml:lang="en"><institution>Ural Federal University named after the first President of Russia B.N.Yeltzin</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>10</day><month>03</month><year>2025</year></pub-date><volume>1</volume><issue>1</issue><fpage>26</fpage><lpage>39</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сунь Г., Миронова Л.И., Лю Ч., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Сунь Г., Миронова Л.И., Лю Ч.</copyright-holder><copyright-holder xml:lang="en">Sun G., Mironova L.I., Liu C.</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://construction.elpub.ru/jour/article/view/849">https://construction.elpub.ru/jour/article/view/849</self-uri><abstract><p>Болтовые фланцевые соединения чаще используются в качестве соединения балки с колонной и балок друг с другом, которые воспринимают момент. Учет разницы прочности фланца и прочности высокопрочных болтов, которая проведет к трем разным типам разрушенных механизма, следует изучать прочность и жесткость таких соединений компонентным методом. Наиболее важными параметрами в этом методе являются расчетная ширина несущих элементов на изгиб и коэффициент жесткости. Определение отношения прочности элементов соединения к механизму разрушения и расчет коэффициента жесткости, вычисленной на основе Т-образного элемента, представляют собой важную задачу. По этой причине целью данной статьи является разработка метода расчета изгибной жесткости и прочности болтовых фланцевых соединений в условиях монотонных нагрузок. Предложенный метод расчета основан на компонентный метод, строительную механику и сопротивление материалов. Верификация выполнена на сведения выполненных экспериментов, для которых можно получить практические зависимости между моментом и углом поворота. Практическая реализация предложенного метода продемонстрирована на расчет несущей способности и жесткости образца выполненных экспериментов. В качестве результатов выполненного исследования можно выделить собственно метод расчета жесткости болтовых фланцевых соединений балки с колонной, влияние прочности разных элементов таких соединений на механизм разрушения и рекомендацию по проектированию соединений в условиях монотонных нагрузок. С использованием разработанного метода можно точно оценить несущую способность и жесткости соединения, оформление диаграммы зависимости между моментом и углом поворота.</p></abstract><trans-abstract xml:lang="en"><p>The end-plate connections are most often used as a connection of beam to column and between beams that perceive a moment. Taking into account the difference in the strength of the end plate and the strength of high-strength bolts, which will lead to three different types of failure mechanisms, it is necessary to study the strength and stiffness of such joints using the component method. The most important parameters in this method are the calculated width of the bearing elements for bending and the stiffness coefficient. Determining the ratio of the strength of the connection elements to the failure mechanism and calculating the stiffness coefficient calculated on the basis of the T-shaped element is an important task. For this reason, the objective of this paper is to develop a method for calculating the bending stiffness and strength of the end-plate connections joints under monotonic loads. The proposed calculation method is based on the component method, structural mechanics and strength of materials. Verification is performed on the basis of the experiments performed, for which practical dependencies between the moment and the angle of rotation can be obtained. The practical implementation of the proposed method is demonstrated by calculating the bearing capacity and rigidity of the sample of the experiments performed.As results of the study, it is possible to highlight the method for calculating the rigidity of the end-plate connections of beam to column, the influence of the strength of different elements of such connections on the mechanism of destruction and a recommendation for designing connections under monotonous loads. Using the developed method, it is possible to accurately estimate the bearing capacity and rigidity of the connection, design a diagram of the relationship between the moment and the angle of rotation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>стальные конструкции</kwd><kwd>болтовые фланцевые соединения</kwd><kwd>жесткость</kwd><kwd>пластический шарнир</kwd><kwd>механизм разрушений</kwd></kwd-group><kwd-group xml:lang="en"><kwd>steel structures</kwd><kwd>end-plate connections</kwd><kwd>stiffness</kwd><kwd>plastic hinge</kwd><kwd>failure mechanisms</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">Данилов А.Н. Развитие отрасли стального строительства // Промышленное и гражданское строительство. 2021. №10. С.4-8.</mixed-citation><mixed-citation xml:lang="en">Danilov A.N. Steel construction development // Industrial and Civil engineering. 2021. No.10. Pp.4-8. 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