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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">mgssuvest</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник МГСУ</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik MGSU</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1997-0935</issn><issn pub-type="epub">2304-6600</issn><publisher><publisher-name>Moscow State University of Civil Engineering (National Research University) (MGSU)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22227/1997-0935.2024.12.1883-1895</article-id><article-id custom-type="elpub" pub-id-type="custom">mgssuvest-445</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>Проектирование и конструирование строительных систем. Строительная механика. Основания и фундаменты, подземные сооружения</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Construction system design and layout planning. Construction mechanics. Bases and foundations, underground structures</subject></subj-group></article-categories><title-group><article-title>Экспериментальные исследования несущей способности балок составного двутаврового сечения из пултрузионных стеклопластиковых профилей (ПСП)</article-title><trans-title-group xml:lang="en"><trans-title>Experimental studies of the bearing capacity of composite cross section beams made of pultrusion fiberglass rofile (PFP)</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>Салахутдинов</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Salakhutdinov</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Марат Айдарович Салахутдинов — кандидат технических наук, доцент, доцент кафедры металлических конструкций и испытания сооружения</p><p>420043, г. Казань, ул. Зеленая, д. 1</p><p>РИНЦ AuthorID: 825789</p></bio><bio xml:lang="en"><p>Marat A. Salakhutdinov — Candidate of Technical Sciences, Associate Professor</p><p>1 Zelenaya st., Kazan, 420043</p><p>RSCI AuthorID: 825789</p></bio><email xlink:type="simple">lider-kazann@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5912-9672</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Арипов</surname><given-names>Д. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Aripov</surname><given-names>D. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Далер Насимович Арипов — кандидат технических наук, старший преподаватель кафедры металлических конструкций и испытания сооружения</p><p>420043, г. Казань, ул. Зеленая, д. 1</p><p>РИНЦ AuthorID: 1004265</p></bio><bio xml:lang="en"><p>Daler N. Aripov — Candidate of Technical Sciences, Senior Lecturer</p><p>1 Zelenaya st., Kazan, 420043</p><p>RSCI AuthorID: 1004265</p></bio><email xlink:type="simple">architector-1992@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6202-2040</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ханеков</surname><given-names>А. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Khanekov</surname><given-names>A. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Арслан Реджепович Ханеков — аспирант, ассистент кафедры металлических конструкций и испытания сооружения</p><p>420043, г. Казань, ул. Зеленая, д. 1</p><p>РИНЦ AuthorID: 1157384</p></bio><bio xml:lang="en"><p>Arslan R. Khanekov — postgraduate student, assistant</p><p>1 Zelenaya st., Kazan, 420043</p><p>RSCI AuthorID: 1157384</p></bio><email xlink:type="simple">khanekova@kgasu.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>Киселев</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kiselev</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Сергеевич Киселев — студент</p><p>420043, г. Казань, ул. Зеленая, д. 1</p></bio><bio xml:lang="en"><p>Sergey S. Kiselev — student</p><p>1 Zelenaya st., Kazan, 420043</p></bio><email xlink:type="simple">kazanbuilder2002@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Казанский государственный архитектурно-строительный университет (КГАСУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan State University of Architecture and Engineering (KSUAE)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>26</day><month>12</month><year>2024</year></pub-date><volume>19</volume><issue>12</issue><fpage>1883</fpage><lpage>1895</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Салахутдинов М.А., Арипов Д.Н., Ханеков А.Р., Киселев С.С., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Салахутдинов М.А., Арипов Д.Н., Ханеков А.Р., Киселев С.С.</copyright-holder><copyright-holder xml:lang="en">Salakhutdinov M.A., Aripov D.N., Khanekov A.R., Kiselev S.S.</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://www.vestnikmgsu.ru/jour/article/view/445">https://www.vestnikmgsu.ru/jour/article/view/445</self-uri><abstract><sec><title>Введение</title><p>Введение. В статье рассматриваются результаты натурных испытаний балок составного двутаврового сечения из пултрузионных стеклопластиковых профилей (ПСП) для оценки их несущей способности и прогибов. Актуальность исследования обусловлена ограничением применения сплошных балок из пултрузионных стеклопластиковых профилей для относительно больших пролетов, что требует применения балок составного сечения. Разработаны конструктивные решения балок составного двутаврового сечения из пултрузионных стеклопластиковых профилей, пояса которых выполнены из парных уголков, со сплошной и перфорированной стенками. В настоящее время отсутствует действующая нормативная документация на уровне сводов правил или ГОСТ, в которых приведена методика расчета несущей способности для составных сечений из ПСП, особенно балок с перфорированной стенкой.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Экспериментальные исследования выполнялись на трехточечный изгиб. В процессе натурных испытаний фиксировались вертикальные перемещения балок и деформации стенки относительно полок.</p></sec><sec><title>Результаты</title><p>Результаты. По результатам натурных испытаний определены несущая способность, прогибы составной двутавровой балки со сплошной и перфорированной стенками. Проведен сравнительный анализ с результатами экспериментальных и численных исследований.</p></sec><sec><title>Выводы</title><p>Выводы. Значимость натурных испытаний заключается в оценке несущей способности и прогибов балок составного двутаврового сечения из пултрузионных стеклопластиковых профилей при трехточечном изгибе, возможности дальнейшего развития и совершенствования методики их расчета.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The article discusses the results of field tests of composite I-beam beam made of pultrusion fiberglass profiles (PSP) to assess their bearing capacity and deflections. The relevance of the study is due to the limited use of solid beams made of pultrusion fiberglass profiles for relatively large spans, which requires the use of composite beams. Constructive solutions have been developed for beams of composite I-section made of pultrusion fiberglass profiles, the belts of which are made of paired corners, with solid and perforated walls. Currently, there is no current regulatory documentation at the level of codes of practice or GOST, which provides a method for calculating the bearing capacity for composite sections made of PSP, especially beams with a perforated wall.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Experimental studies were performed on a three-point bend. During the field tests, vertical movements of the beams and wall deformations relative to the shelves were recorded.</p></sec><sec><title>Results</title><p>Results. According to the results of field tests, the bearing capacity, deflections, and composite I-beams with solid and perforated walls were determined. A comparative analysis with the results of experimental and numerical studies has been carried out.</p></sec><sec><title>Conclusions</title><p>Conclusions. The significance of field tests is to assess the bearing capacity and deflections, beams of composite I-section made of pultrusion fiberglass profiles with three-point bending, the possibility of further development and improvement of their calculation methods.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>пултрузия</kwd><kwd>стеклопластиковый профиль</kwd><kwd>несущая способность</kwd><kwd>балка составного двутаврового сечения</kwd><kwd>изгиб балки</kwd><kwd>перфорированная стенка</kwd></kwd-group><kwd-group xml:lang="en"><kwd>pultrusion</kwd><kwd>fiberglass profile</kwd><kwd>bearing capacity</kwd><kwd>composite cross-section beam</kwd><kwd>bending of the beam</kwd><kwd>perforated wall</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">Кузнецов И.Л., Салахутдинов М.А., Арипов Д.Н., Фахрутдинов А.Э. 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