Built-up members
The capacity of the member in the z-axis direction is calculated as the sum of the capacities of the individual parts. The capacity in the y-axis direction is calculated in accordance with C.1.2(2)
where
Where is: | Atot |
|
kc |
|
Spaced members with packs or gussets
The total cross-sectional area is calculated in accordance with C.3.1(3):
The total moment of inertia is calculated in accordance with C.3.1(3):
The buckling verification in the z-axis direction is calculated as the sum of the capacities of the individual parts. The buckling verification in the y-axis direction is calculated in accordance with C.3.2(2)
Where is: | λ |
|
λ1 |
| |
n |
| |
η |
|
The slenderness ratio λ is calculated using formula
The slenderness ratio for the shafts λ1 is calculated using formula
The shear forces on the gussets or packs are calculated in accordance with formula (C.13)
Lattice members with glued or nailed joints
The effective slenderness ratio is calculated in accordance with C.4.2(2) using formula
Where is: | λtot |
|
μ |
|
The factor μ is calculated for a glued V-truss using formula (C.16)
Where is: | e |
|
Af |
| |
If |
| |
l |
| |
h |
|
The factor μ is calculated for a glued N-truss using formula (C.17)
The factor μ is calculated for a nailed V-truss using formula (C.18)
Where is: | n |
|
Emean |
| |
Ku |
|
The factor μ is calculated for a nailed N-truss using formula (C.19)
Where is: | n |
|
Emean |
| |
Ku |
|