Construction Solutions EC2 Design - · PDF fileEC2 Design - Shear Construction Solutions A...

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Page 1: Construction Solutions EC2 Design - · PDF fileEC2 Design - Shear Construction Solutions A Division of ArcelorMittal Kent Wire Limited Procedure for determining vertical shear reinforcement

EC2 Design - ShearConstruction SolutionsA Division ofArcelorMittal Kent Wire Limited Procedure for determining vertical shear reinforcement

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YES

NO NO

YES

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