Baza Publikacji Pracowników Politechniki Lubelskiej

Status:
Autorzy:	Halicka Anna, Zięba Joanna
Dyscypliny:
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Rok wydania:	2024
Wersja dokumentu:	Drukowana \| Elektroniczna
Język:	angielski
Wolumen/Tom:	303
Numer artykułu:	117571
Strony:	1 - 11
Impact Factor:	5,6
Web of Science® Times Cited:	1
Scopus® Cytowania:	1
Bazy:	Web of Science \| Scopus
Efekt badań statutowych	NIE
Finansowanie:	The research leading to these results has received funding from the commissioned task entitled "VIA CARPATIA Universities of Technology Network named after the President of the Republic of Poland Lech Kaczyński” contract no. MEiN/2022/DPI/2578 action entitled "In the neighborhood – inter university research internships and study visits.”
Materiał konferencyjny:	NIE
Publikacja OA:	NIE
Abstrakty:	angielski
	The first stage of the structure life cycle, i.e. structural design, can be a source of eco-efficient outcomes. They can be achieved through optimisation of the amount of materials used, based of structural analyses. On the other hand the structure should be safe and reliably. The presented article conducts analyses aimed at assessing the accuracy, reliability, and safety of internal force values obtained with use of different subsoil models in reinforced concrete rectangular tank. The focus is on evaluating the performance of simplified subsoil models integrated into Finite Element Method (FEM) software: W1 (one-parameter Winkler model), W3 (three-parameter Winkler model) and DP (the tank modelled together with a solid subsoil simulated with the Drücker–Prager constitutive model). FEM was coupled with reliability analysis. The influence of the soil model on the values of internal forces in the tank walls (horizontal and vertical forces and bending moments) and in foundation slab (bending models) was assessed. The paper proves, by modelling the interaction of the structure with the soil, that the more simplified the FEM model, the values of internal forces differ from reality to higher extend. Therefore, the use of accurate models leads to structural optimization and ensures safety. In the analysed tank, in view of the watertightness demand, the reliability index of the structure was determined for the serviceability limit state of cracking. As the analyses have shown, the optimization of internal forces in the walls and foundation of the tank, through the use of an appropriate and reliable numerical model for analysis, results in a higher value of the reliability indices of individual sections for cracking and a lower probability of cracking.

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Influence of the subsoil model on the safety and eco-efficiency of reinforced concrete structure of rectangular liquid tank founded beneath the terrain surface

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