<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<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">42697</article-id><article-id pub-id-type="doi">10.22363/1815-5235-2024-20-5-391-403</article-id><article-id pub-id-type="edn">ZRBRFL</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Analytical and numerical methods of analysis of structures</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Аналитические и численные методы расчета 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">Strength Model for Concrete in Near-Reinforcement Region</article-title><trans-title-group xml:lang="ru"><trans-title>Расчетная модель сопротивления железобетона в околоарматурной области</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5075-1134</contrib-id><contrib-id contrib-id-type="spin">3990-0345</contrib-id><name-alternatives><name xml:lang="en"><surname>Kolchunov</surname><given-names>Vladimir I.</given-names></name><name xml:lang="ru"><surname>Колчунов</surname><given-names>Владимир Иванович</given-names></name></name-alternatives><bio xml:lang="en"><p>Corresponding Member of the Russian Academy of Architecture and Construction Sciences, Doctor of Technical Sciences, Professor, Professor of the Department of Engineering Graphics and Computer Modeling</p></bio><bio xml:lang="ru"><p>член-корреспондент РААСН, доктор технических наук, профессор кафедры инженерной графики и компьютерного моделирования, Национальный исследовательский Московский государственный строительный университет ; главный научный сотрудник, Научно-исследовательский институт строительной физики, Российская академия архитектуры и строительных наук</p></bio><email>vlik52@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5392-9150</contrib-id><contrib-id contrib-id-type="spin">3365-8320</contrib-id><name-alternatives><name xml:lang="en"><surname>Fedorova</surname><given-names>Natalia V.</given-names></name><name xml:lang="ru"><surname>Федорова</surname><given-names>Наталия Витальевна</given-names></name></name-alternatives><bio xml:lang="en"><p>Advisor of the Russian Academy of Architecture and Construction Sciences, Doctor of Technical Sciences, Head of the Department of Industrial and Civil Engineering</p></bio><bio xml:lang="ru"><p>советник РААСН, доктор технических наук, профессор, заведующий кафедрой промышленного и гражданского строительства</p></bio><email>fedorovanv@mfmgsu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6885-588X</contrib-id><contrib-id contrib-id-type="spin">6913-5863</contrib-id><name-alternatives><name xml:lang="en"><surname>Iliushchenko</surname><given-names>Tatiana A.</given-names></name><name xml:lang="ru"><surname>Ильющенко</surname><given-names>Татьяна Александровна</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Technical Science, Senior Lecturer of the Department of Industrial and Civil Engineering Construction</p></bio><bio xml:lang="ru"><p>кандидат технических наук, старший преподаватель кафедры промышленного и гражданского строительства</p></bio><email>tatkhalina93@yandex.ru</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Moscow State University of Civil Engineering (National Research University)</institution></aff><aff><institution xml:lang="ru">Национальный исследовательский Московский государственный строительный университет</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Research Institute of Construction Physics of the Russian Academy of Architecture and Construction Sciences</institution></aff><aff><institution xml:lang="ru">Научно-исследовательский институт строительной физики РААСН</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Kursk State University</institution></aff><aff><institution xml:lang="ru">Курский государственный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2024</year></pub-date><volume>20</volume><issue>5</issue><issue-title xml:lang="en">VOL 20, NO5 (2024)</issue-title><issue-title xml:lang="ru">ТОМ 20, №5 (2024)</issue-title><fpage>391</fpage><lpage>403</lpage><history><date date-type="received" iso-8601-date="2025-01-31"><day>31</day><month>01</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Kolchunov V.I., Fedorova N.V., Iliushchenko T.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Колчунов В.И., Федорова Н.В., Ильющенко Т.А.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Kolchunov V.I., Fedorova N.V., Iliushchenko T.A.</copyright-holder><copyright-holder xml:lang="ru">Колчунов В.И., Федорова Н.В., Ильющенко Т.А.</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/42697">https://journals.rudn.ru/structural-mechanics/article/view/42697</self-uri><abstract xml:lang="en"><p>The relevant problem of concrete strength in the near-reinforcement zone is solved as a problem of volumetric stress-strain state with the “closure” of output integral parameters of this zone on the framework of the whole reinforced concrete element, synthesizing hypotheses and dependencies of various disciplines of solid mechanics, including fracture mechanics. The model of reinforced concrete element takes into account Vl.I. Kolchunov’s effect of reinforced concrete, which describes the mechanism of formation and development of transverse and longitudinal cracks. In this respect, generalized hypotheses of linear and shear strains for warping and gradients of relative mutual displacements of reinforcement and concrete are adopted. New functionals of reinforced concrete are constructed, which are consistent with the physical interpretations of the strength of cross-sections of bar elements in near-reinforcement zones. Constitutive equations for the concrete matrix, which models zones between transverse cracks, are written. The displacement components for the nearreinforcement zone in relation to the crack opening width at the “concrete-reinforcement” contact interface in transverse, longitudinal and radial cracks, respectively, are found. The use of the adopted assumptions and a multi-level calculation approach for the near-reinforcement region brings the model significantly closer to a real evaluation of the physical phenomena.</p></abstract><trans-abstract xml:lang="ru"><p>Решена актуальная задача сопротивления околоарматурной зоны бетона как задача объемного напряженно-деформированного состояния с «замыканием» выходных интегральных параметров этой зоны на стержневую схему всего железобетонного элемента, синтезирующую в себе гипотезы и зависимости механики железобетона и механики разрушения. В расчетной модели железобетонного элемента учтен эффект железобетона проф. Вл.И. Колчунова описывающий механизм образования и развития поперечных и продольных трещин. При этом приняты обобщенные гипотезы линейных и угловых деформаций для депланаций и градиентов относительных взаимных смещений арматуры и бетона. Построены новые функционалы железобетона, которые согласуются с физическими представлениями о сопротивлении поперечных сечений стержневых элементов в околоарматурных зонах. Записаны физические уравнения для бетонной матрицы, моделирующей зоны между поперечными трещинами. Найдены составляющие перемещений для околоарматурной области применительно к ширине раскрытия трещин на границе контакта «бетон-арматура» в поперечных, продольных и радиальных трещинах соответственно. Использование принятых предпосылок и многоуровневой расчетной схемы для околоарматурной области заметно приближает расчетную модель к реальной оценке физических явлений.</p></trans-abstract><kwd-group xml:lang="en"><kwd>volumetric stress state</kwd><kwd>near-reinforcement zone</kwd><kwd>displacement</kwd><kwd>cylindrical coordinates</kwd><kwd>effect of reinforced concrete</kwd><kwd>linear and shear strains</kwd><kwd>generalized hypothesis</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>объемное напряженное состояние</kwd><kwd>околоарматурная зона</kwd><kwd>перемещение</kwd><kwd>цилиндрические координаты</kwd><kwd>эффект железобетона</kwd><kwd>линейные и угловые деформации</kwd><kwd>обобщенная гипотеза</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Bondarenko V.M., Kolchunov V.I. Computational models of the strength resistance of reinforced concrete. Moscow: ASV Publ.; 2004. (In Russ.) EDN: QNKPAP</mixed-citation><mixed-citation xml:lang="ru">Бондаренко В.М., Колчунов Вл.И. Расчетные модели силового сопротивления железобетона. М.: Изд-во АСВ, 2004. 472 с. EDN: QNKPAP</mixed-citation></citation-alternatives></ref><ref id="B2"><label>2.</label><citation-alternatives><mixed-citation xml:lang="en">Golyshev A.B., Kolchunov V.I. Resistance of reinforced concrete. Kyiv: Osnova Publ.; 2009. (In Russ.) EDN: WLZJYN</mixed-citation><mixed-citation xml:lang="ru">Голышев А.Б., Колчунов Вл.И. Сопротивление железобетона. К.: Основа, 2009. 432 с. EDN: WLZJYN</mixed-citation></citation-alternatives></ref><ref id="B3"><label>3.</label><citation-alternatives><mixed-citation xml:lang="en">Karpenko N.I. General models of reinforced concrete mechanics. Moscow: Stroyizdat Publ.; 1996. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Карпенко Н.И. Общие модели механики железобетона. М.: Стройиздат, 1996. 410 с. ISBN 5-274-01682-0</mixed-citation></citation-alternatives></ref><ref id="B4"><label>4.</label><citation-alternatives><mixed-citation xml:lang="en">Tureyen A.K., Frosch R.J. Concrete shear strength: Another perspective. Structural journal. 2003;100(5):609-615.</mixed-citation><mixed-citation xml:lang="ru">Tureyen A.K., Frosch R.J. Concrete shear strength: Another perspective // ACI Structural Journal. 2003. Vol. 100. No. 5. P. 609–615.</mixed-citation></citation-alternatives></ref><ref id="B5"><label>5.</label><citation-alternatives><mixed-citation xml:lang="en">Wight J.K., MacGregor J.G. Reinforced concrete mechanics and design. Pearson Ed.; 2020.</mixed-citation><mixed-citation xml:lang="ru">Wight J.K., MacGregor J.G. Reinforced concrete mechanics and design. Pearson Ed., 2020. 1157 p.</mixed-citation></citation-alternatives></ref><ref id="B6"><label>6.</label><citation-alternatives><mixed-citation xml:lang="en">Bentz E.C. Empirical Modeling of Cracking in Reinforced Concrete. ACI Structural Journal. 2019;116(3):233.</mixed-citation><mixed-citation xml:lang="ru">Bentz E.C. Empirical Modeling of Cracking in Reinforced Concrete // ACI Structural Journal. 2019. Vol. 116. No. 3. P. 233.</mixed-citation></citation-alternatives></ref><ref id="B7"><label>7.</label><citation-alternatives><mixed-citation xml:lang="en">Frosch R.J. Another look at cracking and crack control in reinforced concrete. ACI Structural Journal. 1999;96(3): 437-442. http://doi.org/10.14359/679</mixed-citation><mixed-citation xml:lang="ru">Frosch R.J. Another look at cracking and crack control in reinforced concrete // ACI Structural Journal. 1999. No. 96(3). P. 437–442. http://doi.org/10.14359/679</mixed-citation></citation-alternatives></ref><ref id="B8"><label>8.</label><citation-alternatives><mixed-citation xml:lang="en">Murashev V.I. Crack resistance, rigidity and strength of reinforced concrete. Moscow: Mashstroyizdat Publ.; 1950. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Мурашев В.И. Трещиноустойчивость, жесткость и прочность железобетона. М.: Машстройиздат, 1950. С. 269.</mixed-citation></citation-alternatives></ref><ref id="B9"><label>9.</label><citation-alternatives><mixed-citation xml:lang="en">Thomas F.G. Cracking in reinforced concrete. The Structural Engineer. 1936;14:298-320.</mixed-citation><mixed-citation xml:lang="ru">Thomas F. G. Cracking in reinforced concrete // The Structural Engineer. 1936. No. 14. P. 298–320.</mixed-citation></citation-alternatives></ref><ref id="B10"><label>10.</label><citation-alternatives><mixed-citation xml:lang="en">Iakovenko I., Kolchunov Vl. The development of fracture mechanics hypotheses applicable to the calculation of reinforced concrete structures for the second group of limit states. Journal of Applied Engineering Science. 2017;15(455): 366-375. http://doi.org/10.5937/jaes15-14662</mixed-citation><mixed-citation xml:lang="ru">Iakovenko I., Kolchunov Vl. The development of fracture mechanics hypotheses applicable to the calculation of reinforced concrete structures for the second group of limit states // Journal of Applied Engineering Science. 2017. Vol. 15 (455). P. 366–375. http://doi.org/10.5937/jaes15-14662</mixed-citation></citation-alternatives></ref><ref id="B11"><label>11.</label><citation-alternatives><mixed-citation xml:lang="en">Travush V.I., Karpenko N.I., Kolchunov Vl.I., Kaprielov S.S., Demyanov A.I., Bulkin S.A., Moskovtseva V.S. Results of experimental studies of high-strength fiber reinforced concrete beams with round cross-sections under combined bending and torsion. Structural Mechanics of Engineering Constructions and Buildings. 2020;16(4):290-297. http://doi.org/10.22363/1815-5235-2020-16-4-290-297</mixed-citation><mixed-citation xml:lang="ru">Travush V.I., Karpenko N.I., Kolchunov Vl.I., Kaprielov S.S., Demyanov A.I., Bulkin S.A., Moskovtseva V.S. Results of experimental studies of high-strength fiber reinforced concrete beams with round cross-sections under combined bending and torsion // Structural Mechanics of Engineering Constructions and Buildings. 2020. Vol. 16 (4). P. 290–297. http://doi.org/ 10.22363/1815-5235-2020-16-4-290-297</mixed-citation></citation-alternatives></ref><ref id="B12"><label>12.</label><citation-alternatives><mixed-citation xml:lang="en">Klyueva N.V., Yakovenko I.A., Usenko N.V. On the calculation of the opening width of inclined cracks of the third type in composite reinforced concrete structures. Industrial and civil engineering. 2014;2:8-11. (In Russ.) EDN: RWGCIT</mixed-citation><mixed-citation xml:lang="ru">Клюева Н.В., Яковенко И.А., Усенко Н.В. К расчету ширины раскрытия наклонных трещин третьего типа в составных железобетонных конструкциях // Промышленное и гражданское строительство. 2014. № 2. С. 8–11. EDN: RWGCIT</mixed-citation></citation-alternatives></ref><ref id="B13"><label>13.</label><citation-alternatives><mixed-citation xml:lang="en">Dem’yanov A.I., Yakovenko I.A., Kolchunov V.I. The development of universal short dual-console element for resistance of reinforced concrete structures under the action torsion with bending. Izvestiya Vysshikh Uchebnykh Zavedenii, Seriya Teknologiya Tekstil’noi Promyshlennostithis. 2017;370(4):246-251. (In Russ.) EDN: YLHYQC</mixed-citation><mixed-citation xml:lang="ru">Демьянов А.И., Яковенко И.А., Колчунов В.И. Разработка универсального короткого двухконсольного элемента к сопротивлению железобетонных конструкций при кручении с изгибом // Известия высших учебных заведений. Технология текстильной промышленности. 2017. № 370 (4). P. 246–251. EDN: YLHYQC</mixed-citation></citation-alternatives></ref><ref id="B14"><label>14.</label><citation-alternatives><mixed-citation xml:lang="en">Travush V.I., Kashevarova G.G., Martirosyan A.S., Kuzminykh V.S. Study of the process of destruction of adhesion bonds during pressing of a rigid reinforcement rod into concrete. Part 1: Experimental studies. International Journal for Computational Civil and Structural Engineering. 2016;12(1):140-146. EDN: VZTWHZ</mixed-citation><mixed-citation xml:lang="ru">Травуш В.И., Кашеварова Г.Г., Мартиросян А.С., Кузьминых В.С. Изучение процесса разрушения связей сцепления при вдавливании стержня жесткой арматуры в бетон. Часть 1: Экспериментальные исследования // Между- народный журнал по расчету гражданских и строительных конструкций. 2016. Т. 12. № 1. С. 140–146. EDN: VZTWHZ</mixed-citation></citation-alternatives></ref><ref id="B15"><label>15.</label><citation-alternatives><mixed-citation xml:lang="en">Mathern A., Yang J. A practical finite element modeling strategy to capture cracking and crushing behavior of reinforced concrete structures. Materials. 2021;14(3):506. http://doi.org/10.3390/ma14030506</mixed-citation><mixed-citation xml:lang="ru">Mathern A., Yang J. A practical finite element modeling strategy to capture cracking and crushing behavior of reinforced concrete structures // Materials. 2021. Vol. 14. No. 3. P. 506. http://doi.org/10.3390/ma14030506</mixed-citation></citation-alternatives></ref><ref id="B16"><label>16.</label><citation-alternatives><mixed-citation xml:lang="en">Golding V. P., Gharineiat Z., Munawar H.S., Ullah F. Crack detection in concrete structures using deep learning. Sustainability. 2022;14(13):8117. https://doi.org/10.3390/su14138117</mixed-citation><mixed-citation xml:lang="ru">Golding V.P., Gharineiat Z., Munawar H.S., Ullah F. Crack detection in concrete structures using deep learning // Sustainability. 2022. Vol. 14. No. 13. P. 8117. https://doi.org/10.3390/su14138117</mixed-citation></citation-alternatives></ref><ref id="B17"><label>17.</label><citation-alternatives><mixed-citation xml:lang="en">Somma G., Vit M., Frappa G., Pauletta M., Pitacco I., Russo G. A new cracking model for concrete ties reinforced with bars having different diameters and bond laws. Engineering Structures. 2021;235:112026. https://doi.org/10.1016/j.engstruct.2021.112026</mixed-citation><mixed-citation xml:lang="ru">Somma G., Vit M., Frappa G., Pauletta M., Pitacco I., Russo G. A new cracking model for concrete ties reinforced with bars having different diameters and bond laws // Engineering Structures. 2021. Vol. 235. P. 112026. https://doi.org/ 10.1016/j.engstruct.2021.112026</mixed-citation></citation-alternatives></ref><ref id="B18"><label>18.</label><citation-alternatives><mixed-citation xml:lang="en">Dey A., Valiukas D., Jakubovskis R., Sokolov A., Kaklauskas G. Experimental and numerical investigation of bond-slip behavior of high-strength reinforced concrete at service load. Materials. 2021;15(1):293. https://doi.org/10.3390/ma15010293</mixed-citation><mixed-citation xml:lang="ru">Dey A., Valiukas D., Jakubovskis R., Sokolov A., Kaklauskas G. Experimental and Numerical Investigation of BondSlip Behavior of High-Strength Reinforced Concrete at Service Load // Materials. 2021. Vol. 15. Issue 1. P. 293. https://doi.org/ 10.3390/ma15010293</mixed-citation></citation-alternatives></ref><ref id="B19"><label>19.</label><citation-alternatives><mixed-citation xml:lang="en">Bado M.F., Casas J.R., Kaklauskas G. Distributed Sensing (DOFS) in Reinforced Concrete members for reinforcement strain monitoring, crack detection and bond-slip calculation. Engineering Structures. 2021;226:111385. https://doi.org/10.1016/j.engstruct.2020.111385</mixed-citation><mixed-citation xml:lang="ru">Bado M.F., Casas J.R., Kaklauskas G. Distributed Sensing (DOFS) in Reinforced Concrete members for reinforcement strain monitoring, crack detection and bond-slip calculation // Engineering Structures. 2021. Vol. 226. Article 111385. https:// doi.org/10.1016/j.engstruct.2020.111385</mixed-citation></citation-alternatives></ref><ref id="B20"><label>20.</label><citation-alternatives><mixed-citation xml:lang="en">Kaklauskas G., Sokolov A., Sakalauskas K. Strain compliance crack model for RC beams: primary versus secondary cracks. Engineering Structures. 2023;(281):115770. https://doi.org/10.1016/j.engstruct.2023.115770</mixed-citation><mixed-citation xml:lang="ru">Kaklauskas G., Sokolov A., Sakalauskas K. Strain compliance crack model for RC beams: primary versus secondary cracks // Engineering Structures. 2023. Vol. 281. Article 115770. https://doi.org/10.1016/j.engstruct.2023.115770</mixed-citation></citation-alternatives></ref><ref id="B21"><label>21.</label><citation-alternatives><mixed-citation xml:lang="en">Rimkus A., Cervenka V., Gribniak V., Cervenka J. Uncertainty of the smeared crack model applied to RC beams. Engineering Fracture Mechanics. 2020;233:107088. https://doi.org/10.1016/j.engfracmech.2020.107088</mixed-citation><mixed-citation xml:lang="ru">Rimkus A., Cervenka V., Gribniak V., Cervenka J. Uncertainty of the smeared crack model applied to RC beams // Engineering Fracture Mechanics. 2020. Vol. 233. Article 107088. https://doi.org/10.1016/j.engfracmech.2020.107088</mixed-citation></citation-alternatives></ref><ref id="B22"><label>22.</label><citation-alternatives><mixed-citation xml:lang="en">Kolchunov Vl.I. Generalized hypotheses of warping of linear and angular deformations in reinforced concrete structures under bending with torsion. Russian Journal of Building Construction and Architecture. 2023;1(59):9-26. (In Russ.) https://doi.org/10.36622/VSTU.2023.69.1.001</mixed-citation><mixed-citation xml:lang="ru">Колчунов Вл.И. Обобщенные гипотезы депланации линейных и угловых деформаций в железобетонных конструкциях при изгибе с кручением // Научный журнал строительства и архитектуры. 2023. № 1 (59). С. 9–26. https:// doi.org/10.36622/VSTU.2023.69.1.001</mixed-citation></citation-alternatives></ref><ref id="B23"><label>23.</label><citation-alternatives><mixed-citation xml:lang="en">Kolchunov V.I. Some problem areas of the modern theory of reinforced concrete and their solutions. Fundamental, exploratory and applied research of RAASN on scientific support for the development of architecture, urban planning and the construction industry of the Russian Federation in 2021. 2022:130-141. (In Russ.) EDN: DMBCMT</mixed-citation><mixed-citation xml:lang="ru">Колчунов В.И. Некоторые проблемные задачи современной теории железобетона и их решения // Фунда- ментальные, поисковые и прикладные исследования РААСН по научному обеспечению развития архитектуры, градостроительства и строительной отрасли Российской Федерации в 2021 году. 2022. С. 130–141. EDN: DMBCMT</mixed-citation></citation-alternatives></ref><ref id="B24"><label>24.</label><citation-alternatives><mixed-citation xml:lang="en">Kolchunov Vl.I. Method of calculation models of resistance for reinforced concrete. Structural Mechanics of Engineering Constructions and Buildings. 2023;19(3):261-275. (In Russ.) https://doi.org/10.22363/1815-5235-2023-193-261-275</mixed-citation><mixed-citation xml:lang="ru">Колчунов Вл.И. Метод расчетных моделей сопротивления для железобетона // Строительная механика инже- нерных конструкций и сооружений. 2023. Т. 19. № 3. С. 261–275. https://doi.org/10.22363/1815-5235-2023-19-3-261-275</mixed-citation></citation-alternatives></ref><ref id="B25"><label>25.</label><citation-alternatives><mixed-citation xml:lang="en">Kolchunov Vl.I., Karpenko S.N. Rigidity of reinforced concrete structures under complex resistance. Russian Journal of Building Construction and Architecture. 2022;(1):7-20. (In Russ.) https://doi.org/10.36622/VSTU.2022.53.1.001</mixed-citation><mixed-citation xml:lang="ru">Колчунов Вл.И., Карпенко С.Н. Жесткость железобетонных конструкций при сложном сопротивлении // Научный журнал строительства и архитектуры. 2022. № 1 (65). С. 11–24.  https://doi.org/10.36622/VSTU.2022.65.1.001</mixed-citation></citation-alternatives></ref><ref id="B26"><label>26.</label><citation-alternatives><mixed-citation xml:lang="en">Kolchunov V. The Effect of Reinforced Concrete for Crack Resistance and Rigidity Based on Mechanics of Fracture Under Bending with Torsion. Modern Problems in Construction: Selected Papers from MPC 2021. 2022:79-95. https://doi.org/10.1007/978-3-031-12703-8_9</mixed-citation><mixed-citation xml:lang="ru">Kolchunov V. The Effect of Reinforced Concrete for Crack Resistance and Rigidity Based on Mechanics of Fracture Under Bending with Torsion // Modern Problems in Construction: Selected Papers from MPC 2021. 2022. P. 79–95. https://doi.org/10.1007/978-3-031-12703-8_9</mixed-citation></citation-alternatives></ref><ref id="B27"><label>27.</label><citation-alternatives><mixed-citation xml:lang="en">Kolchunov Vl.I., Nikulin A.I., Obernikhin D.V. Crack opening width of reinforced concrete structures with trapezoidal cross-section taking into account new resistance effects. Bulletin of BSTU named after V.G. Shukhov. 2018;(10):64-73. (In Russ.) https://doi.org/10.12737/article_5bd95a75010906.70019486</mixed-citation><mixed-citation xml:lang="ru">Колчунов Вл.И., Никулин А.И., Обернихин Д.В. Ширина раскрытия трещин железобетонных конструкций трапециевидного поперечного сечения с учетом новых эффектов сопротивления // Вестник БГТУ им. В.Г. Шухова. 2018. № 10. С. 64–73. https://doi.org/10.12737/article_5bd95a75010906.70019486</mixed-citation></citation-alternatives></ref></ref-list></back></article>
