Abstract: The main objectives of this research are to study experimentally, analytically and numerically the effectiveness of the proposed external strengthening techniques to resist punching shear of reinforced concrete flat slabs. The finite element (FE) analysis software program (ANSYS V. 19) was used to create the models and investigate the effects of some parameters on punching shear of reinforced concrete flat slabs. Eight variable parameters are taken into consideration during study full scale flat slab models to account the influence of: (1) concrete compressive strength fcu; (2) reinforcing steel yield strength fy; (3) slab thickness (ts); (4) shear studs and stirrups diameter (Db); (5) shear studs (stirrups) spacing /ts ratio (Sb/ts); (6) shear studs stirrups spacing/ts ratio (D/ ts); (7) main steel ratio/m max ( m /m max); (8) top steel ratio/m max (m` /m max).The numerical results were compared with the analytical results calculated from ECP 203-2017 [1] and ACI 318-19 [2]. The comparison showed a great match between the numerical results and the results of the two codes, especially ACI 318-19 [2].
Keywords: Punching shear, experimental, external strengthening, ANSYS program, numerical analysis.
Title: Comparison between Experimental, Nonlinear Finite Element Analysis Results and International Codes for Reinforced Concrete Flat Slabs Strengthened Using Different Techniques to Resist Punching Failure
Author: Hanna F. H. Habeb, Ahmed A. Mahmoud, Alaa G. Sherif, Magdy M.M. Genidi
International Journal of Civil and Structural Engineering Research
ISSN 2348-7607 (Online)
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