ORIGINAL ARTICLE
Numerical and Experimental Validation of Homogenization Techniques for Bubble Deck Slabs
1
Department of Biosystems Engineering, Poznan University of Life Sciences
2
Doctoral School, Poznan University of Life Sciences, Poland
3
Department of Construction and Geoengineering, Poznan University of Life Sciences, Poland
Submission date: 2025-01-13
Final revision date: 2025-01-28
Acceptance date: 2025-02-04
Online publication date: 2025-02-12
Publication date: 2025-02-12
Corresponding author
Anna Szymczak-Graczyk
Department of Construction and Geoengineering, Poznan University of Life Sciences, Piatkowska 94 street, 60-649, Poznan, Poland
Department of Construction and Geoengineering, Poznan University of Life Sciences, Piatkowska 94 street, 60-649, Poznan, Poland
Civil and Environmental Engineering Reports 2025;35(1):230-249
KEYWORDS
Bubble Deck slabnumerical homogenization3D cross-section integrationdeflection analysisfinite element methodstructural validation
TOPICS
ABSTRACT
This study investigates the deflection behaviour of Bubble Deck slabs using numerical and experimental approaches. Two techniques—numerical homogenization and 3D cross-sectional integration—are applied to derive equivalent properties for simplified finite element models. A scaled slab specimen (1020×2040×60 mm) with a reinforcement mesh of Ø4 bars spaced at 30 mm (top and bottom) and plastic spheres (Ø40 mm, spaced at 60 mm) is tested under self-weight and a mid-span linear load. The slab, simply supported on two shorter edges, is modelled both in full 3D and using simplified 2D model with homogenized parameters. Experimental deflections are compared with numerical and analytical/theoretical predictions to validate the proposed techniques, demonstrating their effectiveness in simplifying structural analyses while maintaining accuracy.
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| eISSN: | 2450-8594 |
| ISSN: | 2080-5187 |
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