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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Structural Mechanics of Engineering Constructions and Buildings</journal-id><journal-title-group><journal-title xml:lang="en">Structural Mechanics of Engineering Constructions and Buildings</journal-title><trans-title-group xml:lang="ru"><trans-title>Строительная механика инженерных конструкций и сооружений</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1815-5235</issn><issn publication-format="electronic">2587-8700</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">19282</article-id><article-id pub-id-type="doi">10.22363/1815-5235-2018-14-4-348-356</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Experimental researches</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экспериментальные исследования</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Experimental studies of strength flanged connections</article-title><trans-title-group xml:lang="ru"><trans-title>Экспериментальные исследования прочности фланцевых соединений</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Son</surname><given-names>Mark P</given-names></name><name xml:lang="ru"><surname>Сон</surname><given-names>Марк Петрович</given-names></name></name-alternatives><bio xml:lang="en"><p>Cand. Sci. (Eng.), Associate Professor, Department of Building Structures and Computational Mechanics, Perm National Research Polytechnic University. Scientific interests: nonlinear problems of structural mechanics, stability of structures, nodes of building structures.</p></bio><bio xml:lang="ru"><p>кандидат технических наук, доцент кафедры строительных конструкций и вычислительной механики, Пермский национальный исследовательский политехнический университет. <italic>Область научных интересов: </italic>нелинейные задачи строительной механики, устойчивость сооружений, узлы строительных конструкций</p></bio><email>mark-son@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Perm National Research Polytechnic University</institution></aff><aff><institution xml:lang="ru">Пермский национальный исследовательский политехнический университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2018-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2018</year></pub-date><volume>14</volume><issue>4</issue><issue-title xml:lang="en">VOL 14, NO4 (2018)</issue-title><issue-title xml:lang="ru">ТОМ 14, №4 (2018)</issue-title><fpage>348</fpage><lpage>356</lpage><history><date date-type="received" iso-8601-date="2018-09-14"><day>14</day><month>09</month><year>2018</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2018, Son M.P.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2018, Сон М.П.</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="en">Son M.P.</copyright-holder><copyright-holder xml:lang="ru">Сон М.П.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/structural-mechanics/article/view/19282">https://journals.rudn.ru/structural-mechanics/article/view/19282</self-uri><abstract xml:lang="en"><p>In Russia experimental studies of flange joints of beams with columns have not been carried out previously, which led to the absence of normative methods for their calculation and design. The article presents the results of full-scale tests of three models of flange connections. Models vary in bolt strength, flange thickness, and loading pattern. The purpose of the experiments was to study the operation and bearing capacity of flange joints of beams with columns in the elastic and elastoplastic stage under the action of static loads. The experiments were carried out according to a multifactorial plan. The researches were carried out on a test bench developed by the author, representing a closed power circuit receptive the pressure of the jacks without the occurrence of reactions to the laboratory's power floor. The pressure in the loading system was fixed by pressure gauges, the displacement by linear displacement sensors, and deformations by strain gauges. According to the results of the experiments, it has been shown that it is possible to design and operate flange joints without reinforcement elements, such as stiffeners, haunches, back flanges, support tables, etc. Up to loads of 25-35 tf, the connections worked linearly, samples are destroyed at moments of 45-50 tf·m. Efforts perceived by full-scale models proved to be several times higher than those calculated in the “Kometa-2” program and recommended for calculating flange connections.</p></abstract><trans-abstract xml:lang="ru"><p>В России экспериментальных исследований фланцевых соединений балок с колоннами ранее не проводилось, что повлекло за собой отсутствие нормативных методик их расчета и проектирования. В статье приводятся результаты полномасштабных натурных испытаний трех моделей фланцевых соединений. Модели различны по классу прочности болтов, толщине фланца и схеме нагружения. Цель экспериментов - исследование работы и несущей способности фланцевых соединений балок с колоннами в упругой и упругопластической стадии при действии статических нагрузок. Эксперименты проходили по многофакторному плану. Исследования проводились на разработанном автором испытательном стенде, представляющим замкнутый силовой контур, воспринимающий давление домкратов без возникновения реакций на силовой пол лаборатории. Давление в системе нагружения фиксировалось манометрами, перемещения - линейными датчиками перемещений, деформации - тензорезисторами. По результатам экспериментов показано, что возможно проектирование и эксплуатация фланцевых соединений без элементов усиления, таких как ребра жесткости, вуты, обратные фланцы, опорные столики и пр. До нагрузок 25-35 тс соединения работали линейно, разрушение образцов происходит при моментах силы 45-50 тс·м. Усилия, воспринимаемые натурными моделями, оказались в несколько раз выше усилий, вычисленных в программе «Комета-2» и рекомендуемых для расчета фланцевых соединений.</p></trans-abstract><kwd-group xml:lang="en"><kwd>flange</kwd><kwd>node</kwd><kwd>column</kwd><kwd>full-scale testing</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>фланец</kwd><kwd>узел</kwd><kwd>колонна</kwd><kwd>полномасштабные испытания</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Kalenov V.V., Soskin A.G., Evdokimov V.V. (1989). Issledovaniya i raschet ustalostnoj prochnosti flancevyh soedinenij rastyanutyh ehlementov konstrukcij [Investigations and calculation of resistance to fatigue of flanged joints of stretched structural elements]. Boltovye i special'nye montazhnye soedineniya v stal'nyh stroitel'nyh konstrukciyah. 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