Construction Solutions EC2 Design - · PDF fileEC2 Design - Shear Construction Solutions A...
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Transcript of Construction Solutions EC2 Design - · PDF fileEC2 Design - Shear Construction Solutions A...
EC2 Design - ShearConstruction SolutionsA Division ofArcelorMittal Kent Wire Limited Procedure for determining vertical shear reinforcement
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fck vRd, max cot θ = 2.5 vRd, max cot θ = 1.0
20 2.54 3.6825 3.10 4.5028 3.43 4.9730 3.64 5.2832 3.84 5.5835 4.15 6.0240 4.63 6.7245 5.08 7.3850 5.51 8.00
Table 3 Minimum and maximum concrete strut capacity in terms of stress
IsvEd <vRd ,max cot θ = 2.5?
IsvEd <vRd,max cot θ = 1.0?
(see Table 3)
Redesignsection
Determine the concrete stut capacity vRd,max cot θ = 2.5?
from Table 3
Based on guidance in ”How to DesignConcrete Structures Using Eurocode 2” by The Concrete Centre.
Determine vEd where:vEd = design shear stress [ vEd = vEd (bwz) = vEd /(0.9bwd )]
Determine θ from: vEdθ = 0.5 sin -1
0.20 fck (1 - f ck /250)
(cot θ = 2.5)
Calculate area of shear reinforcementAsw
= vEd bw
s fywd cot θ
Check maximum spacing for vertical shear reinforcement:sl, max = 0.75d