Influence of Geometric Parameters on Internal Forces in the Walls of Rectangular Tanks

• Autorzy: Szymczak-Graczyk Anna , Grabowski Tomasz , Ksit Barbara

Identyfikatory

DOI

10.29227/IM-2024-02-27

Warianty tytułu

PL

Wpływ parametrów geometrycznych na siły wewnętrzne w ścianach zbiorników prostopadłościennych

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

Abstrakty

EN

Rectangular tanks are commonly used in various industries for storing materials and products. The design of reinforced concrete liquid tanks, which must be preceded by a static analysis, is a complex issue requiring specialized knowledge and engineering experience. All types of actions, design situations, and resulting load combinations must be considered, including deformations caused by temperature gradients and the interaction of the bottom plate with the ground. Most tanks are designed and constructed with constant wall thickness, regardless of their rectangular or circular cross-section. However, tanks with variable wall thickness (e.g., trapezoidal cross-section) are rarely designed, despite their optimal fit to stress distribution. For hydrostatically loaded tanks, the load on walls increases with depth, causing the highest bending moments at the wall-bottom connection, while the value at the top, free edge is zero. Thus, structural and economic considerations favour walls with thickness increasing with depth. This article presents the results of a verification of static calculations of a monolithic rectangular tank with trapezoidal cross-section walls, comparing it with three other commonly designed tanks with different thickness and wall designs. Static calculations were performed using the finite difference method in terms of energy, employing the condition for the minimum energy of elastic strain stored in a bent plate resting on the elastic base. Traditional calculation methods were used by discretizing the object and creating systems of equations. Analysis of the results shows that constructing walls of linearly variable thickness results in a redistribution of bending moments compared to tanks with uniform wall thickness. This significantly impacts the required reinforcement area. Tanks with linearly variable wall thickness are more economical in terms of material use, aligning with the principles of sustainable construction.

Słowa kluczowe

EN

rectangular tank; finite difference method; trapezoidal cross-section walls; variable walls thickness

PL

zbiornik prostokątny; metoda różnic skończonych; ściany o przekroju trapezowym; ściany o zmiennej grubości

• Wydawca: Polskie Towarzystwo Przeróbki Kopalin
• Czasopismo: Inżynieria Mineralna
• Rocznik: 2024
• Tom: Vol. 1, no. 2
• Strony: art. no. 27
• Opis fizyczny: Bibliogr. 40 poz., rys., tab.

Twórcy

autor

Szymczak-Graczyk Anna

• Department of Construction and Geoengineering, Poznan University of Life Sciences, Piątkowska 94E, 60-649 Poznań, Poland

• https://orcid.org/0000-0002-1187-9087

autor

Grabowski Tomasz

• Department of Biosystems Engineering, Faculty of Environmental and Mechanical Engineering, Poznan University of Life Sciences, Wojska Polskiego 50, 60-627 Poznań, Poland

• https://orcid.org/0000-0002-9588-2514

autor

Ksit Barbara

• Institute of Building Engineering, Faculty of Civil and Transport Engineering, Poznan University of Technology, Piotrowo 5, 60- 965 Poznań, Poland

• https://orcid.org/0000-0001-6459-8783

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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).