Chapter 2 Design for Shear - Engineering
2 units and beam dimensions in inches, nominal shear strength V c = 2√fc’bwd in units of lb. Shear reinforcement is not required for slabs, which can be considered as very wide beams. If the width of a beam is more than twice the thickness h of the beam, ACI 318-05, Section 11.5.6.1(c) exempts
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Chapter 2 Design for Shear - Engineering
by.genie.uottawa.cacompression struts if the required amount of Vs exceeds 8Vc = 8bwd√fc’ regardless of shear reinforcement. Thus, a beam section must be made larger if Vn > 10bwd√fc’. A graph given in design aid SHEAR 1 displays limits of nominal shear stress values of Vn/(bwd) for concrete strength fc’ from 3000 psi to 10,000 psi. The graph is not ...
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