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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">sat</journal-id><journal-title-group><journal-title xml:lang="ru">НАУКА и ТЕХНИКА</journal-title><trans-title-group xml:lang="en"><trans-title>Science &amp; Technique</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2227-1031</issn><issn pub-type="epub">2414-0392</issn><publisher><publisher-name>Belarusian National Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21122/2227-1031-2024-23-4-315-324</article-id><article-id custom-type="elpub" pub-id-type="custom">sat-2790</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>СТРОИТЕЛЬСТВО</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CIVIL AND INDUSTRIAL ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Численное моделирование и симуляция неметаллического волокнистого бетона: оценка структурной производительности с акцентом на тростник и кокосовую скорлупу</article-title><trans-title-group xml:lang="en"><trans-title>Numerical Modeling and Simulation of Non-Metallic Fiber-Reinforced Concrete: Assessing the Structural Performance with Emphasis on Reeds and Coconut Shells</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>Ван</surname><given-names>Сяньпэн</given-names></name><name name-style="western" xml:lang="en"><surname>Wang</surname><given-names>Xianpeng</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аспирант</p><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ю</surname><given-names>Хаосюань</given-names></name><name name-style="western" xml:lang="en"><surname>Yu</surname><given-names>Haoxuan</given-names></name></name-alternatives><bio xml:lang="ru"><p>Магистрант</p><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Цзяо</surname><given-names>Бо</given-names></name><name name-style="western" xml:lang="en"><surname>Jiao</surname><given-names>Bo</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Люй</surname><given-names>Цзюньдун</given-names></name><name name-style="western" xml:lang="en"><surname>Lv</surname><given-names>Jundong</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ковшар</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovshar</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат технических наук, доцент</p><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Леонович</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Leonovich</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор технических наук, профессор</p><p>Адрес для переписки: Леонович Сергей Николаевич –Белорусский национальный технический университет,просп. Независимости, 65,220013, г. Минск, Республика Беларусь.Тел.: +375 17 368-61-56    sleonovich@mail.ru</p></bio><bio xml:lang="en"><p>Address for correspondence:Leonovich Sergey N. – Belаrusian National Technical University, 65, Nezavisimosty Ave.,220013, Minsk, Republic of Belarus. Tel.: +375 17 368-61-56 sleonovich@mail.ru</p></bio><email xlink:type="simple">sleonovich@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский национальный технический университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian National Technical University</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>08</day><month>08</month><year>2024</year></pub-date><volume>23</volume><issue>4</issue><fpage>315</fpage><lpage>324</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ван С., Ю Х., Цзяо Б., Люй Ц., Ковшар С.Н., Леонович С.Н., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Ван С., Ю Х., Цзяо Б., Люй Ц., Ковшар С.Н., Леонович С.Н.</copyright-holder><copyright-holder xml:lang="en">Wang X., Yu H., Jiao B., Lv J., Kovshar S.N., Leonovich S.N.</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://sat.bntu.by/jour/article/view/2790">https://sat.bntu.by/jour/article/view/2790</self-uri><abstract><p>Оптимизация механических характеристик за счет использования полимерных композитов, армированных волокнами, достигается с помощью моделируемого экспериментального проектирования «META». При этом основное внимание уделяется именно улучшению механических характеристик с использованием тростника и кокосовой скорлупы. Этот подход направлен на создание оптимальной конструкции, которая минимизирует расход полимера, обеспечивая при этом заданные механические характеристики и экономическую эффективность. В исследовании, основанном на вероятностном подходе, приоритет отдается методологии оптимизации, основанной на надежности. Для оценки механических характеристик проводится нелинейный анализ нагрузок на уровне системы, при этом моделирование «META» играет ключевую роль в изучении неопределенностей. В рамках «META» коэффициенты неупругого межэтажного смещения рассматриваются как неопределенные переменные, в то время как толщина полимерной оболочки, состоящей из тростника и скорлупы кокосового ореха, считается детерминированной переменной проектирования. Этот усовершенствованный процесс проектирования не только снижает затраты на полимер, но и систематически оценивает экономическую эффективность включения тростника и кокосовой скорлупы, при этом соблюдаются жесткие ограничения надежности конструкции. Явные ограничения на индекс надежности, выверенные с помощью моделирования в «META», обеспечивают устойчивость и адаптивность процесса оптимизации конструкции. Метод численных критериев оптимальности в рамках «META» обеспечивает эффективное решение нелинейной задачи оптимизации проектирования модернизации. В качестве иллюстрации применения приведен пример проектирования, демонстрирующий бесшовную интеграцию тростника и кокосовой скорлупы, что приводит к значительному улучшению механических характеристик в контексте модернизации.</p></abstract><trans-abstract xml:lang="en"><p>The optimization of mechanical performance through the use of fiber-reinforced polymer composites is achieved via META simulated experimental design, with a primary emphasis on enhancing the mechanical characteristics. Incorporating reeds and coconut shells, this approach aims for an optimal design that minimizes polymer usage while ensuring specified mechanical performance and economic efficiency. The research, anchored in a probabilistic framework, prioritizes a reliability-based optimization methodology. To assess mechanical performance, nonlinear pushover analyses at the system level  are conducted, with META simulations playing a key role in exploring uncertainties. Within the META framework, inelastic interstory drift ratios are treated as indeterministic variables, while the thickness of the polymer jacket–featuring reeds  and coconut shells–is considered a deterministic design variable. This refined design process not only reduces polymer costs but also systematically evaluates the cost-effectiveness of incorporating reeds and coconut shells, all while adhering to stringent structural reliability constraints. Explicit reliability index constraints, honed through META simulations, ensure the robustness and adaptability of the design optimization process. The numerical optimality criteria method within the META framework provides an efficient solution to the nonlinear retrofit design optimization problem. Illustrating the application,  a design example showcases the seamless integration of reeds and coconut shells, resulting in a significant enhancement  of mechanical performance within the context of retrofitting.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>механическая производительность</kwd><kwd>композиты на основе волокон и полимеров</kwd><kwd>неупругие коэффициенты смещения этажей</kwd><kwd>кокосовые скорлупы</kwd><kwd>тростник</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mechanical performance</kwd><kwd>fiber-reinforced polymer</kwd><kwd>inelastic interstory drift ratios</kwd><kwd>Coconut Shells</kwd><kwd>Reeds</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">Ang A. H., Cornell C. A. (1974) Reliability Bases of Structural Safety and Design. 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