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Investigation and numerical simulations of the impact of openings on the workability and performance of flat slabs via a punching shear resistance analysis

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Abstract

This research was executed to investigate and examine the critical impact of openings and holes (needed for mechanical and electrical installations) on the workability and performance of flat slabs. A numerical analysis and simulations using the ABAQUS software were implemented. In addition, a comparative study (between nine cases) was adopted to explore the influence of openings on the workability and performance of flat slabs. The damaged zone area, maximum load, maximum deflection, and maximum displacement were recorded. Also, the effect of the opening size on these variables was analysed. The results revealed that cases C1, C2, and C3 had approximately similar maximum displacement values ranging between 31.6 mm and 32.7 mm. The maximum load (failure load) in case C2 (50 × 50 cm) was 223.7 kN, which was 34% less than in case C1, while in case C3 (100 × 100 cm) it was 186.5 kN, which was 45% less than in case C1. The damaged zone area increased by 47% and 144%t for C2 and C3, respectively. It was evident that when the opening size increased, there was a decrease in the punching shear resistance due to the decreased perimeter. In addition, different load values corresponding to various displacements in cases one to nine were recorded, where the load increased with increasing displacement.

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  1. Engineering and Architectural Faculty, Department of Civil Engineering, Altınbaş Üniversitesi, Bağcılar, 34217, Istanbul, Turkey

    Mohaimen AbdulJaleel Ibrahim & Sepanta Naimi

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  1. Mohaimen AbdulJaleel Ibrahim
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Ibrahim, M.A., Naimi, S. Investigation and numerical simulations of the impact of openings on the workability and performance of flat slabs via a punching shear resistance analysis. Asian J Civ Eng 24, 2141–2153 (2023). https://doi.org/10.1007/s42107-023-00631-3

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