AVB cold formed

For the input of database cross sections are used parameters measured in meters [m]. For the designation of database cross sections are used values in millimeters [mm].

Dimensions [m]

Designation [mm]

Circular hollow sections (CHS):

B h_nom / t_w (h_nom = h)

for tapered section: B h_nom / t_w (h_B - h_E)

where:

B - symbol of database AVB cold formed circular hollow section (CHS)

h_nom - nominal height [mm]

h - height [mm]

t_w - web thickness [mm]

h_B - begin height of tapered section [mm]

h_E - end height of tapered section [mm]

Rectangular hollow sections (RHS):

for rectangular section: KK h_nom / b / t (h_nom = h; t = t_w = t_f)

for square section: KK h_nom / t (h_nom = h = b; t = t_w = t_f)

for tapered rectangular section: KK h_nom / b / t (h_B - h_E)

for tapered square section: KK h_nom / t (h_B - h_E)

r_i = a * t_f (t_f = t_w) r_o = β * t_f (t_f = t_w)	α	β
t_f ≤ 2.5 mm	0.5	1.0
2.5 < t_f ≤ 3.0 mm	0.5	1.5
3.0 < t_f ≤ 6.0 mm	1.0	2.0
6.0 < t_f ≤ 8.0 mm	1.5	2.5
t_f < 8.0 mm	2.0	3.0

where:

KK - symbol of database AVB cold formed rectangular hollow section (RHS)

h_nom- nominal height [mm]

h - height [mm]

b - width [mm]

t - thickness [mm]

t_w - web thickness [mm]

t_f- flange thickness [mm]

h_B - begin height of tapered section [mm]

h_E - end height of tapered section [mm]

r_i - inner radius [mm]

r_o - outer radius [mm]