Theoretical prediction of the punching shear strength of concrete flat slabs under in-plane tensile forces

2021 ◽  
Vol 229 ◽  
pp. 111632
Author(s):  
Pablo G. Fernández ◽  
Antonio Marí ◽  
Eva Oller
Keyword(s):  
Shear Strength ◽  
Theoretical Prediction ◽  
Punching Shear ◽  
Flat Slabs ◽  
Tensile Forces

Moment and shear transfer between columns and concrete slabs

1990 ◽  
Vol 17 (4) ◽  
pp. 621-628
Author(s):  
Amin Ghali ◽  
Adel A. Elgabry
Keyword(s):  
Shear Strength ◽  
Structural Design ◽  
American Concrete Institute ◽  
Punching Shear ◽  
Vertical Shear ◽  
Concrete Slabs ◽  
Finite Element Analyses ◽  
Shear Transfer ◽  
Flat Slabs ◽  
Punching Failure

Gravity and horizontal forces cause the transfer of vertical shear and moments between concrete flat slabs and their supporting columns. These forces can cause punching failure. Design equations for safety against punching given in the Canadian Standards Association and the American Concrete Institute codes are critically reviewed. It is shown that the equations give in some cases incorrect stresses which do not satisfy equilibrium. A modification is suggested which makes the equations applicable to all cases. The paper also discusses the codes' approach of sharing the resistance to transferred moment between resistances by flexure and by eccentricity of shear, using the coefficient γv. Comparisons are made with the result of finite element analyses. It is concluded that the code equations, with the suggested modification, are adequate, provided that appropriate values are used for the coefficient γv. Key words: columns, connections, flat concrete plates, moments, punching shear, reinforced concrete, shear strength, slabs, structural design.

Punching Shear Strength Model for Reinforced Concrete Flat Slabs with Openings

2021 ◽  
Vol 147 (7) ◽  
Author(s):  
Marília G. Marques ◽  
Elyson A. P. Liberati ◽  
Ronaldo B. Gomes ◽  
Alessandra L. Carvalho ◽  
Leandro M. Trautwein
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Punching Shear ◽  
Strength Model ◽  
Flat Slabs

scholarly journals Punching shear strength of reinforced concrete flat slabs subjected to fire on their tension sides

HBRC Journal ◽  
2012 ◽  
Vol 8 (1) ◽  
pp. 36-46 ◽  
Author(s):  
Hamed Salem ◽  
Heba Issa ◽  
Hatem Gheith ◽  
Ahmed Farahat
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Punching Shear ◽  
Flat Slabs

scholarly journals Enhancement of punching shear strength of flat slabs using shear-band reinforcement

HBRC Journal ◽  
2018 ◽  
Vol 14 (3) ◽  
pp. 393-399 ◽  
Author(s):  
Nasr Z. Hassan ◽  
Mostafa A. Osman ◽  
Awad M. El-Hashimy ◽  
Heba K. Tantawy
Keyword(s):  
Shear Strength ◽  
Shear Band ◽  
Punching Shear ◽  
Flat Slabs
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