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The research aims to compare various conventional strengthening systems for flat slab buildings regarding their seismic performance.

February 2, 2026Applied SciencesOpen Access

Enhancing the Seismic Performance of Flat Slab Buildings: Comparative Evaluation of Conventional Structural Strengthening Systems

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Evaluates seismic performance improvements in flat slab buildings, indicating effective strengthening strategies for engineers.

The research aims to compare various conventional strengthening systems for flat slab buildings regarding their seismic performance.
Conducted a comparative finite element analysis using ETABS v20.
Developed five ten-story building models under identical seismic loading conditions.
Evaluated key response parameters such as displacement and lateral drift.
Followed ACI 318-19 and ASCE 7-22 provisions for seismic design.
Models with coupled shear walls showed up to 50% reduction in story displacement.
Drop panels improved punching resistance but had limited global impact on lateral stiffness.
Combining drop panels with edge beams significantly enhanced overall stiffness and drift control.
Coupled shear walls redirected lateral forces, reducing the risk of punching shear failure.

Hadwan et al. (2026) studied this question.

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