<p>The punching capacity of steel fiber-reinforced concrete slabs (SFRCS) is primarily influenced by the height of the concrete struts and the cross-sectional area of the conventional reinforcement steel. However, adding fibers to the concrete effectively increased the deformation and punching capacity of reinforced concrete slabs. The objective of the present study is to evaluate the punching shear capacity of steel fiber-reinforced concrete slabs without shear reinforcement by developing a new simplified approach that accounts for both concrete and reinforcement contributions, including the fiber aspect ratio (D_f/L_f) and fiber volumetric percentage. The proposed analytical model is calibrated by studying the interaction between concrete and fibers based on the most widely used database of steel fiber-reinforced concrete slabs, which failed only in punching shear. The proposed approach highlights the fibers' contribution. It provides more accurate strength predictions for the existing DATA of steel fiber-reinforced concrete slab tests than recent mechanical models, with less scatter than design approaches in the literature (mean (Vtest/Vmodel) = 1.08, COV = 9.8%).</p>