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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">hydrophysics</journal-id><journal-title-group><journal-title xml:lang="ru">Фундаментальная и прикладная гидрофизика</journal-title><trans-title-group xml:lang="en"><trans-title>Fundamental and Applied Hydrophysics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-6673</issn><issn pub-type="epub">2782-5221</issn><publisher><publisher-name>St. Petersburg Research Center of the Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">hydrophysics-1050</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>ВЗАИМОДЕЙСТВИЕ МОРСКИХ ОБЪЕКТОВ, ОКЕАНА И АТМОСФЕРЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INTERACTION OF MARINE OBJECTS*, OCEAN‏ AND ‏ATMOSPHERE</subject></subj-group></article-categories><title-group><article-title>Определение коэффициента динамичности при воздействии бора на оградительное сооружение гравитационного типа</article-title><trans-title-group xml:lang="en"><trans-title>Determination of the dynamic coefficient under the tsunami bore impact on the protective structure of gravitational type</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>Рутман</surname><given-names>Ю. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Rutman</surname><given-names>Yu. L.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фильков</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Filkov</surname><given-names>V. Yu.</given-names></name></name-alternatives><email xlink:type="simple">filkov@bk.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный архитектурно-строительный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St.-Petersburg state University of architecture and construction</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>«23 Государственный морской проектный институт» — филиал АО «31 ГПИСС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>«The 23rd State marine design Institute» — branch of JSC «31 GPISS»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>27</day><month>11</month><year>2022</year></pub-date><volume>10</volume><issue>3</issue><fpage>91</fpage><lpage>96</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Рутман Ю.Л., Фильков В.Ю., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Рутман Ю.Л., Фильков В.Ю.</copyright-holder><copyright-holder xml:lang="en">Rutman Y.L., Filkov V.Y.</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://hydrophysics.spbrc.ru/jour/article/view/1050">https://hydrophysics.spbrc.ru/jour/article/view/1050</self-uri><abstract><p>В теоретических и экспериментальных исследованиях, посвященных нагрузкам от обрушенной волны на гидротехнические и береговые сооружения при воздействии цунами, как правило не учитывался динамический эффект, обусловленный податливостью сооружения и основания. На основании анализа современных публикаций была установлена обобщенная зависимость равнодействующей давления обрушенной волны (бора) на сооружение от времени. Реакция сооружения на воздействие бора зависит от временного характера нагружения и жесткости системы «грунт-сооружение». Произведена численная оценка динамического эффекта при различных значениях скорости нагружения и жесткости системы на примере оградительного мола, выполненного из массивов-гигантов. Были рассмотрены различные грунтовые основания, соответствующие возможным условиям строительства. В качестве расчетной схемы сооружения было показано абсолютно жесткое тело на упругом основании, обладающее двумя степенями свободы — смещением в горизонтальном направлении и поворотом в плоскости, перпендикулярной оси мола. Рассматривались собственные колебания, соответствующие низшему тону с учетом инерционного влияния воды. Из результатов выполненных в статье исследований следует, что при определении нагрузок от бора на оградительные сооружения следует учитывать их динамический характер. В рамках консервативной оценки при приближенных расчетах допускается принимать значение коэффициента динамичности равное двум.</p></abstract><trans-abstract xml:lang="en"><p>In theoretical and experimental researches of loads from a collapsed wave on marine and coastal structures from tsunami dynamic effect due to the flexibility of the structure and the foundation was not taken. The generalized dependence of the resultant pressure waves of the collapsed wave (bore) from time was established based on the analysis of modern publications. The reaction of structures to the effects of bore depends of loading and stiffness of the system «soil-construction». Numerical evaluation of dynamic effects for different values of the loading rate and the stiffness of the system, for example, of protective breakwater are made. Various ground bases corresponding to possible conditions of construction are examined. As the analyses scheme of the building there was considered an absolutely rigid body on an elastic base with two degrees of freedom — displacement in the horizontal direction and rotation in the plane perpendicular to the axis of the pier. Self-oscillations corresponding to the lower mode taking into account the inertial effects of water are considered. From the results of the article, researches have shown that, when defining loads from the bore on the protection structure should take into account their dynamic nature. For a conservative evaluation in approximate calculations it is allowed to take the value of the dynamic factor equal to two.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>цунами</kwd><kwd>бор</kwd><kwd>коэффициент динамичности</kwd><kwd>период собственных колебаний</kwd><kwd>воздействие</kwd><kwd>реакция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>tsunami</kwd><kwd>bore</kwd><kwd>dynamic coefficient</kwd><kwd>the period of oscillation</kwd><kwd>impact</kwd><kwd>reaction</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">Robertson I. N., Carden L. P., Chock G. Y. K. Case Study of Tsunami Bore Impact on RC Wall // Proceedings of the 32nd International Conference on Ocean, Offshore and Arctic Engineering. OMAE 2013. June 9—14, 2013, Nantes, France. 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