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27
Screw selection
27.2
Bolts total force
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Bolts total force

27.2
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Eqn. 1
\require{color}\definecolor{myred}{RGB}{255,0,0} F_{\color{myred}SG}=F_{\color{myred}B}+F_{\color{myred}Kl}=F_{\color{myred}B}\cdot(1+\nu_{\color{myred}Kl})
Eqn. 2
\require{color}\definecolor{myred}{RGB}{255,0,0} \nu_{\color{myred}Kl}=\frac{F_{\color{myred}Kl}}{F_{\color{myred}B}}=0,5\dots2
Bolts total forceFSG=200kN 
Axial operating forceFB = 100kN
Clamping force ratioνKl = 1
100
Calc 1
Bolts-total force FSG

The total bolts force FSG must be greater than the axial operating force FB so that the joint gaping is prevented.

Clamping force ratio νcl
Static load 0.5... 1.5
Dynamic load 1... 2
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