Advanced Package Training Scaffolding 2011.1 - Scia-Software GbR

I) All parts are classified as non-slender
β ≤ 39ε
i
The Shear check shall be verified using art. 6.2.6. Ref.[1]
II) One or more parts are classified as slender
β > 39ε
i
The Shear check shall be verified using art. 6.5.5. Ref.[1].
For each part i the shear resistance VRd,i is calculated.
Non slender part
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Advanced Training
Formula (6.88) Ref.[1] is used with properties calculated from the reduced shape for
N+(ρu,HAZ)
( x − x ) ⋅ ρ ⋅ t ⋅ cos α
2
For Vy: Anet,y,i = end beg i u,
HAZ i
i
( x − x ) ⋅ ρ ⋅ t ⋅ sin α
2
For Vz: Anet,z,i = end beg i u,
HAZ i
i
With: i The number (ID) of the plate
xend End position of plate i
xbeg Begin position of plate i
t Thickness of plate i
ρu,HAZ Haz reduction factor of plate i
α Angle of plate i to the Principal y-y axis
Slender part
Formula (6.88) Ref.[1] is used with properties calculated from the reduced shape for
N+(ρu,HAZ) in the same way as for a non-slender part. => VRd,i,yield
Formula (6.89) is used with a the member length or the distance between stiffeners
(for I or U-sections)
=> VRd,i,buckling
=> For this slender part, the resulting VRd,i is taken as the minimum of VRd,i,yield and
VRd,i,buckling
For each part VRd,i is then determined.
=> The VRd of the cross-section is then taken as the sum of the resistances VRd,i of all parts.
Note:
V
∑
= i
V
Rd Rd i