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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">33407</article-id><article-id pub-id-type="doi">10.22363/1815-5235-2022-18-5-407-416</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Analysis and design of building structures</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Расчет и проектирование строительных конструкций</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">Justification of the parameters of regulationof forces for steel-reinforced concrete span structures from project “43282 km” by TSNIIPSK</article-title><trans-title-group xml:lang="ru"><trans-title>Обоснование параметров регулирования усилий сталежелезобетонных пролетных строений разработки ЦНИИПСК «43282 км»</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3881-2050</contrib-id><name-alternatives><name xml:lang="en"><surname>Belutsky</surname><given-names>Igor Y.</given-names></name><name xml:lang="ru"><surname>Белуцкий</surname><given-names>Игорь Юрьевич</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Technical Sciences, Professor of the Department of Highways, Institute of Civil Engineering</p></bio><bio xml:lang="ru"><p>доктор технических наук, профессор кафедры автомобильных дорог, Инженерно-строительный институт</p></bio><email>mosttogu@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5414-7567</contrib-id><name-alternatives><name xml:lang="en"><surname>Kudryavtsev</surname><given-names>Sergey A.</given-names></name><name xml:lang="ru"><surname>Кудрявцев</surname><given-names>Сергей Анатольевич</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Technical Sciences, Professor, Head of the Department of Bridges, Tunnels and Under-Ground Structures, Institute of Transport Construction</p></bio><bio xml:lang="ru"><p>доктор технических наук, профессор, заведующий кафедрой мостов, тоннелей и подземных сооружений, Институт транспортного строительства</p></bio><email>mosttogu@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4677-7478</contrib-id><name-alternatives><name xml:lang="en"><surname>Lazarev</surname><given-names>Igor V.</given-names></name><name xml:lang="ru"><surname>Лазарев</surname><given-names>Игорь Витальевич</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Technical Sciences, Associate Professor of the Department of Highways, Institute of Civil Engineering</p></bio><bio xml:lang="ru"><p>кандидат технических наук, доцент кафедры автомобильных дорог, Инженерно-строительный институт</p></bio><email>lazarev_igor_v@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Pacific National University</institution></aff><aff><institution xml:lang="ru">Тихоокеанский государственный университет</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Far Eastern State Transport University</institution></aff><aff><institution xml:lang="ru">Дальневосточный государственный университет путей сообщения</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2022</year></pub-date><volume>18</volume><issue>5</issue><issue-title xml:lang="en">VOL 18, NO5 (2022)</issue-title><issue-title xml:lang="ru">ТОМ 18, №5 (2022)</issue-title><fpage>407</fpage><lpage>416</lpage><history><date date-type="received" iso-8601-date="2023-01-29"><day>29</day><month>01</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Belutsky I.Y., Kudryavtsev S.A., Lazarev I.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Белуцкий И.Ю., Кудрявцев С.А., Лазарев И.В.</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Belutsky I.Y., Kudryavtsev S.A., Lazarev I.V.</copyright-holder><copyright-holder xml:lang="ru">Белуцкий И.Ю., Кудрявцев С.А., Лазарев И.В.</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/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/structural-mechanics/article/view/33407">https://journals.rudn.ru/structural-mechanics/article/view/33407</self-uri><abstract xml:lang="en"><p style="text-align: justify;">Steel-reinforced concrete spans in road bridges have been widely used since the late 1950s, in the configuration of large-span bridges built across significant water barriers. To date, the issue of the need to reconstruct such span structures, including those designed and built according to the project “43282 km” developed by TsNIIPSK, is becoming increasingly relevant. The authors analyze the stages of the production of works of a particular object, developed for the implementation of the entire complex of works on its reconstruction using the method of force regulation. The presented order of work was successfully implemented during construction of the bridge over Kabarga River in Primorsky Krai. This made it possible to preserve the existing structure of the span (main beams and braces), replacing the worn-out reinforced concrete slab with a new - metal orthotropic one, while ensuring that the conditions of strength and stability of the flexural-torsional shape of solid-walled beams are met, in the process of dismantling the existing roadway slab and constructing a new one. Considering that steel-reinforced concrete bridges are built across large water barriers and have a very significant cost due to their large length, reconstruction using existing supports can significantly reduce the cost of construction, so, the possibility of upgrading the existing steel-reinforced concrete span structure is, undoubtedly, relevant. Based on the structural and technological measures presented by the authors, it is possible to carry out and effectively implement work on the reconstruction of the existing steel-reinforced concrete bridges that do not fully meet modern requirements for load capacity and throughput.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Сталежелезобетонные пролетные строения в автодорожных мостах стали широко применяться с конца 1950-х гг. в компоновке схем большепролетных мостов, сооружаемых через значительные водные преграды. На сегодняшний день все большую актуальность обретает вопрос необходимости реконструкции отмеченных пролетных строений, в том числе запроектированных и построенных по проекту ЦНИИПСК «43282 км». В исследовании разобраны этапы производства работ конкретного объекта, разработанные для реализации всего комплекса работ по его реконструкции с применением метода регулирования усилий. Представленный порядок выполнения работ успешно реализован на строительстве моста через р. Кабаргу в Приморском крае, что позволило сохранить существующую структуру пролетного строения (главные балки и связи), заменив изношенную железобетонную плиту на новую - металлическую ортотропную, при обеспечении выполнения условий прочности и устойчивости изгибно-крутильной формы сплошностенчатых балок в процессе демонтажа существующей плиты проезжей части и устройства новой. Учитывая, что сталежелезобетонные мосты возводятся через большие водные преграды и в том числе из-за большой длины имеют значительную стоимость, а реконструкция с использованием существующих опор позволяет существенно сократить стоимость строительства, актуальность модернизации существующих сталежелезобетонных пролетных строений является, несомненно, актуальной. На основании предложенных конструктивно-технологических мероприятий возможно проведение и эффективная реализация работ по реконструкции действующих сталежелезобетонных мостов, не в полной мере удовлетворяющих современным требованиям по грузоподъемности и пропускной способности.</p></trans-abstract><kwd-group xml:lang="en"><kwd>steel-reinforced concrete span structures</kwd><kwd>force regulation</kwd><kwd>flexural-torsional shape stability</kwd><kwd>jacking up</kwd><kwd>temporary supports</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>сталежелезобетонные пролетные строения</kwd><kwd>регулирование усилий</kwd><kwd>устойчивость изгибно-крутильной формы</kwd><kwd>поддомкрачивание</kwd><kwd>временные опоры</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Streletsky N.N. Steel-reinforced concrete bridge spans. 2nd ed., reprint. and add. Moscow: Transport Publ.; 1981. p. 25-82. 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