Info

60 mm

60 mm

120 mm

Cross-section

325 mm

325 mm

325 mm

372 mm

882 mm

882 mm

882 mm

882 mm

882 mm

372 mm

1. Column geometric properties

Column length, L c

Number of shafts, n Depth of each shaft, b Thickness of each shaft, h Space between shafts, a

Maximum free distance permitted by

Distance is acceptable if a/aEC5 < 1 or = 1

Distance between centres of the shafts, a1

Length of end pack, l2.e

Length of intermediate pack t2.;

Length of pack for design, t2

Minimum pack length permitted, t2min (8.4.4 (EC5, C.3.1))

Pack length acceptable if t2/t2,min > 1 or = 1

Depth of intermediate pack, w2

Cross-sectional area of each shaft, Ashaft

Section modulus of each pack (based on design length t2), Wpack

Total cross-sectional area of the spaced column, Atot

Cross-sectional area of a pack for design, Apack

Second moment of area of the spaced column about the z-z axes, Iz

Second moment of area of the spaced column about the y-y axis, Itot (equation (8.22))

Second moment of area of a shaft about the local w-w axis, Iw

Radius of gyration of the spaced column about the z-z axis, iz

Slenderness ratio of the spaced column about the z-z axis, aEC5 = 3 ■ h

Wpack =

0 0

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