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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 custom-type="elpub" pub-id-type="custom">concconc-6</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>Исследование железобетонных балок на податливых опорах при кратковременном динамическом нагружении</article-title><trans-title-group xml:lang="en"><trans-title>Study of Reinforced Concrete Beams on Yielding Supports under Short-Term Dynamic Loading</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3547-185X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Галяутдинов</surname><given-names>З. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Galyautdinov</surname><given-names>Z. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Галяутдинов Заур Рашидович, д.т.н, доцент, заведующий кафедры «Железобетонные и каменные конструкции»</p><p>Scopus: 57190934189</p><p>634003, г. Томск, пл. Соляная, д. 2</p></bio><bio xml:lang="en"><p>Zaur R. Galyautdinov, Doctor of Technical Sciences, Associate Professor, Head of the Department of Reinforced Concrete and Stone Structures</p><p>Scopus: 57190934189</p><p>2, Solyanaya Sq., Tomsk, 634003</p></bio><email xlink:type="simple">gazr@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Томский государственный архитектурно-строительный университет<country>Россия</country></aff><aff xml:lang="en">Tomsk State University of Architecture and Civil Engineering (TSUAB)<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>15</day><month>01</month><year>2023</year></pub-date><volume>1</volume><issue>1</issue><fpage>28</fpage><lpage>36</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Галяутдинов З.Р., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Галяутдинов З.Р.</copyright-holder><copyright-holder xml:lang="en">Galyautdinov Z.R.</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/6">https://www.g-b-k.ru/jour/article/view/6</self-uri><abstract><p>Сооружения гражданской обороны подвергаются действию кратковременных динамических нагрузок высокой интенсивности. Для снижения динамических усилий и перемещений конструкций в последние годы все более широкое применение находят активные способы защиты, к которым относятся податливые опоры. В настоящей работе оценка влияния податливости опор выполнена по результатам расчета железобетонных балок на податливых опорах при кратковременном динамическом нагружении. Работа конструкции рассматривается в условно упругой стадии, а податливых опор в упругой, пластической и стадии отвердения. В качестве податливых опор приняты сминаемые вставки кольцевого профиля. Для железобетонных балок на податливых опорах определены уравнение движения, функция и коэффициент динамичности. Установлено, что применение упругих податливых опор может оказывать как положительное, так и отрицательное влияние на работу конструкций, выражающееся в превышении усилий и перемещений конструкций на упругих опорах относительно элементов на несмещемых опорах. При деформировании податливых опор в упругой и пластической стадиях происходит резкое снижение коэффициента динамичности балок, а, следовательно, напряжений и деформаций в конструкциях. Переход податливых опор в стадию отвердения приводит к резкому росту коэффициенту динамичности конструкции.</p></abstract><trans-abstract xml:lang="en"><p>Civil defense structures are exposed to short-term dynamic loads of high intensity. In order to reduce dynamic forces and movements of structures, active methods of protection, which include yielding supports, have been increasingly used in recent years. In this paper, the assessment of the influence of the yielding of supports is carried out based on the results of the calculation of reinforced concrete beams on yielding supports under short-term dynamic loading. The work of the structure is considered in the conditionally elastic stage, and yielding supports in the elastic, plastic and hardening stages. Collapsible inserts of an annular profile are accepted as yielding supports. For reinforced concrete beams on yielding supports, the equation of motion, function and coefficient of dynamism are determined. It has been established that the use of elastic yielding supports can have both positive and negative effects on the operation of structures, which is expressed in the excess of forces and displacements of structures on elastic supports relative to elements on non-displaceable supports. When yielding supports are deformed in the elastic and plastic stages, there is a sharp decrease in the dynamic coefficient of beams, and, consequently, stresses and deformations in structures. The transition of yielding supports to the stage of hardening leads to a sharp increase in the dynamic coefficient of the structure.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кратковременная динамическая нагрузка</kwd><kwd>коэффициент динамичности</kwd><kwd>податливая опора</kwd><kwd>уравнение движения</kwd><kwd>усилие</kwd><kwd>перемещение</kwd><kwd>частота</kwd></kwd-group><kwd-group xml:lang="en"><kwd>short-term dynamic load</kwd><kwd>dynamic coefficient</kwd><kwd>yielding support</kwd><kwd>equation of motion</kwd><kwd>force</kwd><kwd>displacement</kwd><kwd>frequency</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">Бирбраер А.Н., Роледер А.Ю. Экстремальные воздействия на сооружения – Санкт-Петербург: Издательство Политехнического университета, 2009. – 594 с.</mixed-citation><mixed-citation xml:lang="en">Birbrayer A.N., Roleder A.YU. 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