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The scaffolding couplers according to EN 12811-1 Annex C Ref.[23] are provided by default within SCIA Engineer.
The interaction check of the couplers is executed according to EN 12811-1 article 10.3.3.5.
The interaction equations are summarised as follows:
|
Coupler type |
Interaction equation |
|---|---|
|
Right angle coupler |
|
|
Friction sleeve |
|
| Fsk |
Characteristic Slipping force Taken as Nxk and Vzk of the coupler properties 2Fsk = Nxk + Vzk |
|
Fpk |
Characteristic Pull-apart force Taken as Vyk of the coupler properties |
|
MBk |
Characteristic Bending moment Taken as Myk of the coupler properties |
|
N |
Normal force |
|
Vy |
Shear force in y direction |
|
Vz |
Shear force in z direction |
|
My |
Bending moment about the y axis |
|
|
Safety factor taken as γM0 of EN 1993-1-1 for steel couplers Safety factor taken as γM1 of EN 1999-1-1 for aluminium couplers |
