Urban construction and architectureUrban construction and architecture2542-01512782-2109Eco-vector10938310.17673/Vestnik.2023.01.02Research ArticleStrength, stiffness and crack resistance of a lightweight slab structure model with spherical void formersToshinDmitry S.<p>PhD in Engineering Science, Associate Professor of the Center for Architectural, Structural Solutions and Construction Management</p>D.Toshin@tltsu.ruDolgopolovDmitry A.<p>General Director</p>dmteta@mail.ruTogliatti State UniversityLimited Liability Company SPK-Center15042023131101617072022Copyright © 2023, Toshin D.S., Dolgopolov D.A.2023<p>Precast concrete has been used for many decades with optimized consumption of concrete and reinforcement. The use of monolithic reinforced concrete in the Russian Federation cannot be called balanced in terms of its material consumption. One of the design ideas for creating lightweight slab reinforced concrete structures in monolithic construction is the BubbleDeck technology. Spherical bushings are located in places of the least stresses in the structure, which leads to a significant reduction in the own weight. The article presents the results of assessing the strength, stiffness and crack resistance of a reduced model of a reinforced concrete slab in comparison with similar parameters of a solid section slab.</p>reinforced concrete slablightweight constructionspherical void formerinsertstrengthrigiditydeformabilitycrack resistancebendingBubbleDeck technologyжелезобетонная плитаоблегченная конструкциясферический пустотообразовательвкладышпрочностьжесткостьдеформативностьтрещиностойкостьизгибтехнология «BubbleDeck»[Kovalenko G.V., Dudina I.V., Nazarova N.O. Optimization of prefabricated reinforced concrete structures on a probabilistic basis as a factor in reducing their material consumption. Trudy Bratskogo gosudarstvennogo universiteta. Seriya: Estestvennye i inzhenernye nauki [Proceedings of the Bratsk State University. Series: Natural and engineering sciences]. 2018, V.1. pp. 156−160. (In Russian).][Kuznecov V.S., SHaposhnikova YU.A. The structure of the cost of materials in ribbed slabs with a variable section height. Struktura stoimosti materialov v rebristyh plitah pri peremennoj vysote secheniya [Inzhenerny Bulletin of the Don], 2022, no. 3 (87), pp. 421−432. (in Russian)][Tamrazyan A.G., Dolganov A.I., Kaleev D.I. et al. On the probabilistic assessment of the reliability of reinforced concrete multi-hollow floor panels. Izvestiya vysshih uchebnyh zavedenij. Tekhnologiya tekstilnoj promyshlennosti [News of higher educational institutions. Technology of the textile industry], 2017, no. 4(370), pp. 267−271. (in Russian)][Yumasheva E.I., Sapacheva L.V. House-building industry and the social order of time. Stroitelnye materialy [Building materials], 2014, no. 10, pp. 3−11. (in Russian)][Al Karadi A. Production, efficiency and application of multi-hollow slabs in construction. Tekhnologii betonov [Tekhnologii betonov], 2014, no. 5(94), pp. 32−36. (in Russian)][Zemlyanskij A.A., ZHukov A.N., Bulavina D.A. Experience of full-scale testing of reinforced concrete ribbed slabs. Akademicheskij vestnik UralNIIproekt RAASN [Academic Bulletin UralNIIproekt RAASN], 2019, no. 4(43), pp. 79−82. (in Russian) DOI: 10.25628/UNIIP.2019.43.4.014][Bosakov S.V., Mordich A.I., Simbirkin V.N. To increase the bearing capacity and rigidity of floors formed by multi-hollow slabs. Promyshlennoe i grazhdanskoe stroitel’stvo [Industrial and civil construction], 2017, no. 4, pp. 30−36. (in Russian)][Sergiu Călin, Ciprian Asăvoaie, N. Florea. Issues for Achieving an Experimental Model Concerning Bubble Deck Concrete Slab with Spherical Gaps. Gheorghe Asachi” Technical University of Iaşi Department of Concrete Structures, Building Materials, Technology and Management. 2016. 8 p.][BubbleDeck. Available at: https://www.bubbledeck.com (accessed 20 September 2022).]