Comparative Assessment of Deflections of Voided Reinforced Concrete Slabs, FEM Analysis and Manual Calculations

• Autorzy: Jendzelovsky Norbert , Beutelhauser Daniel

Identyfikatory

DOI

10.29227/IM-2024-02-03

Warianty tytułu

PL

Ocena porównawcza ugięć płyt żelbetowych z pustkami: analiza MES i obliczenia ręczne

• Konferencja: 9th World Multidisciplinary Congress on Civil Engineering, Architecture, and Urban Planning - WMCCAU 2024 : 2-6.09.2024
• Języki publikacji: EN

Abstrakty

EN

This article presents a comprehensive comparative study of deflection voided reinforced concrete slabs, evaluating the results obtained through Finite Element Method (FEM) analyses of various accuracy and manual calculations, specifically employing the method of strips. Distinct methodologies used for analysis are: FEM analysis using SCIA Engineer, where voids in the slabare accounted for by adjusting the modulus of elasticity and self-weight of concrete. The slab is modelled by using 2D slab elements, allowing for efficient and relatively fast examination of structural behaviour and FEM analysis in ANSYS Workbench Mechanical, where voids are modelled within a 3D solid representation of the entire slab. This approach should provide the best representation of a real structure as it models all its elements with their respective physical attributes. Results of FEM analyses would be compared not only to each other, but also with results of manual calculations, if possible. Calculations that are going to be used are based on the method of strips, a traditional approach for analysing deflection of reinforced concrete slabs. The comparative analysis encompasses calculations of deflection of voided reinforced concrete slabs with various geometrical properties and boundary conditions. The findings aim to contribute to the engineering community by elucidating the strengths, limitations, and trade-offs associated with each respective type of FEM analysis, as well as manual calculations, when it comes to assessing the deflection of voided reinforced concrete slabs.

Słowa kluczowe

EN

FEM; floor slab; dynamic; eigenfrequency

PL

MES; płyta stropowa; dynamika; częstotliwość własna

• Wydawca: Polskie Towarzystwo Przeróbki Kopalin
• Czasopismo: Inżynieria Mineralna
• Rocznik: 2024
• Tom: Vol. 1, no. 2
• Strony: art. no. 3
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Jendzelovsky Norbert

• STU in Bratislava, Faculty of Civil Engineering, Radlinskeho 11, Bratislava 810 05, Slovakia

• https://orcid.org/0000-0003-2713-0705

autor

Beutelhauser Daniel

• STU in Bratislava, Faculty of Civil Engineering, Radlinskeho 11, Bratislava 810 05, Slovakia

Bibliografia

• 1. European Commission, “Stepping up Europe’s 2030 climate ambition. Investing in a climate-neutral future for the benefit of our people,” Brussels, Sep. 2020. Accessed: Mar. 05, 2024. [Online]. Available: https://eurlex.europa.eu/legal-content/EN/TXT/?uri=CELEX:52020DC0562
• 2. H. Kröhnert, R. Itten, and M. Stucki, “Comparing flexible and conventional monolithic building design: Life cycle environmental impact and potential for material circulation,” Build Environ, vol. 222, p. 109409, Aug. 2022, doi:10.1016/J.BUILDENV.2022.109409.
• 3. X. Chuai, Q. Lu, X. Huang, R. Gao, and R. Zhao, “China’s construction industry-linked economy-resourcesenvironment flow in international trade,” J Clean Prod, vol. 278, p. 123990, Jan. 2021, doi: 10.1016/J.JCLEPRO.2020.123990.
• 4. L. F. Hussein, A. A. S. Al-Taai, and I. D. Khudhur, “Sustainability achieved by using voided slab system,” 2020, p. 020071. doi: 10.1063/5.0000216.
• 5. A. J. Pawar, N. S. Mathew, P. D. Dhake, and Y. D. Patil, “Flexural behavior of Two-Way voided slab,” Mater Today Proc, vol. 65, pp. 1534–1545, Jan. 2022, doi: 10.1016/J.MATPR.2022.04.500.
• 6. M. Schnellenbach-Held and K. Pfeffer, “Punching behavior of biaxial hollow slabs,” Cem Concr Compos, vol. 24, no. 6, pp. 551–556, Dec. 2002, doi: 10.1016/S0958-9465(01)00071-3.
• 7. N. Jendželovský and K. Vráblová, “Analysis of natural frequencies of voided biaxial concrete slabs,” in Key Engineering Materials, vol. 738, Trans Tech Publications Ltd, 2017, pp. 15–24. doi:10.4028/www.scientific.net/KEM.738.15.
• 8. Harvan Ivan, Železobetónové nosné sústavy, navrhovanie podľa európskych noriem . Slovenská technická univerzita, 2006.
• 9. J. Hořejší and J. Šafka, Statické tabuľky. Praha: STNL, 1987.
• 10. Cobiax Technologies AG, “Engineering Manual, Issue 2010,” Zug, 2010

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki i promocja sportu (2025).