What question did this study set out to answer?

To develop an improved model for predicting punching shear capacity in reinforced concrete flat slabs without using shear reinforcement.

April 12, 2026Engineering ReportsOpen Access

Punching Shear Capacity Model in Reinforced Concrete Flat Slab Without Shear Reinforcement, Based on Fracture Mechanics and Statistical Approach

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Fracture mechanics model predicts punching shear capacity in concrete flat slabs, indicating improved accuracy and reliability.

To develop an improved model for predicting punching shear capacity in reinforced concrete flat slabs without using shear reinforcement.
Developed a fracture mechanics-based model for punching shear capacity
Evaluated the model against 141 experimental test results from literature
Conducted sensitivity analysis on parameters like slab dimensions and concrete strength
Compared model performance with existing models and design codes
Model prediction achieved a mean error of 1.01%, indicating high accuracy
Model showed a coefficient of variation of 13.21% demonstrating consistency
Mean absolute error was 11.55% reflecting positive reliability
R² value of 0.93 suggests excellent predictive capability of the model

Ndabamenye et al. (2026) studied this question.

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