PSI - Issue 81

Serhii Filipchuk et al. / Procedia Structural Integrity 81 (2026) 401–405

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4. Conclusions 1. Low-cycle loading has a significant effect on the stress – strain state of U-shaped reinforced concrete frames with artificial force regulation. As a result of such loading, total and residual strains in concrete and reinforcement, beam deflections, and crack widths in frame elements increase. 2. Total strains in concrete and reinforcement stabilize by the sixth loading cycle. 3. The beam deflection of a two-hinged reinforced concrete frame with artificial force regulation is 16.1% smaller than that of a two-hinged reinforced concrete frame without artificial force regulation under single loading, and 11.2% smaller under repeated loading. References Babich Y, Filipchuk, S, Karavan V., Sobczak-Piastka J., 2019. General requirements for materials of fortification protective structures. AIP Conference Proceedingsthis 2077, 020004. Babich Y, Filipchuk, S, Karavan V., Sobczak-Piastka J., 2019. Research of basic mechanical and deformative properties of high-strength fast-hardening concretes. AIP Conference Proceedings 2077, 020003. Babych, Y., Filipchuk, S., Fenko, O., 2018. Mathematical modeling of the resistance of pulling out steel bars from high strength concrete. International Journal of Engineering and Technology (UAE) 7 (3.2), 516-521. Chapiuk, O., Oreshkin, D., Hryshkova, A., Pakholiuk, O., Avramenko, Y., 2023. Adhesion of the metal and composite fiberglass rebar with the heavyweight concrete. Lecture Notes in Civil Engineering 299, 47 – 60. DBN V.2.6 – 98:2009. Structures of buildings and structures. Concrete and reinforced concrete structures. Basic provisions. 2011. 71 p. DSTU B V.2.7 – 214:2009. Budivelni materialy. Betony. Metody vyznachennia mitsnosti za kontrolnymy zrazkamy. Dovbenko, V., Kukhniuk, O., Homon, S., Ivaniuk, A., Aleksiievets, V., Savytska, O., Kulakovskyi, L., 2024. Study of the strength properties of concrete impregnated with a polymer composition. Procedia Structural Integrity 59, 702-709. Drobyshynets, S., Babych, Y., Sunak, P., Zadorozhnikova, I., Parfentyeva, I., Pakharenko, V., Homon, S., 2024. Experimental and theoretical studies of fatigue of steel fibre reinforced concrete under low-cycle compression. Procedia Structural Integrity 59, 601-608. Dvorkin, L., Bordiuzhenko, O., Zhitkovsky, V., Gomon, S., Homon, S., 2021. Mechanical properties and design of concrete with hybrid steel basalt fiber. E3S Web of Conferences 264, 02030. Dvorkin, L., Bordiuzhenko, O., Zhitkovsky, V., Gomon, S., Homon, S. (2021). Mechanical properties and design of concrete with hybrid steel basalt fiber. E3S Web of Conferences 264, article number 02030. Dvorkіn L.J., Babich E.M., Z h itkovs'kij V.V., Bordyuzhenko O.M., Fіlіpchuk S.V.,Kochkar'ov D.V., Kovalik І.V., Koval'chuk T.V., Skripnik M.M., 2017. Visokomіcnі shvidkotverdnuchі betoni ta fіbro betony. Rіvne: NUVGP, 331. EN 1992. Eurocode 2: Design of concrete structures. Part 1: General rules and rules for buildings. Brussels, 2002. 230 p. Filipchuk S.V., Sobishchanskyi O.L., Kovalchuk Y.T. 2025. Methodology for testing double-hinged reinforced concrete frames with artificial regulation of forces. Resource-saving materials, constructions, buildings and structures: coll. of science works, Issue 47. P. 425 – 430. Filipchuk S.V., Sobishchanskyi O.L., Kovalchuk Yu.T. 2025. Methods of testing two-hinged reinforced concrete frames. Buildings and structures of special purpose: modern materials and structures, collection theses add. p.139. Filipchuk S., Karavan, V., Makarenko, R., Nalepa, O., Chapiuk, O., 2023. Study of reinforcement adhesion to concrete under static and dynamic loads. AIP Conference Proceedings 2949(1), 020007. Filipchuk, S., Karavan, V., Karavan, B., Nalepa, O., Holub, A., 2024. Concrete Behavior Under Dynamic Loads in Bridge Structures. Proceedings of EcoComfort, 119-132. Filipchuk, S., Karavan, V., Nalepa, O., Chapiuk, O., Pakholiuk, O., 2024. Stability of slabs made of high-strength concrete subjected to dynamic influence. Procedia Structural Integrity, 588 – 594. Korniychuck, O., Masiuk, G., Homon, S., Aleksiievets, I., Chapiuk, O., Kaynts, D., Rizak, V., 2024. Deformability of reinforced concrete beams under the action of repeated alternating loads. Procedia Structural Integrity 59, 575-582. Sobczak-Piastka J., Babich Y, Filipchuk, S, Karavan V., Nalepa, O., 2020. Research of deformative properties of concrete taking into account the descending branch of deformation. IOP Conference Series: Materials Science and Engineering 960(3), 032057. Sobczak-Piastka, J., Babych, V., Karavan, V., Polianovska, O., Filipchuk, S., Shvets, I., 2023. Increase in crack resistance of bending reinforced-concrete elements by local dispersal reinforcement of the tensile zone. AIP Conference Proceedings 2928(1), 080006