Design of Lacing Assignment Help

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Design of Lacing:

Check for Spacing

From Figure 14(b) distance between CG of channels

= 180 + 2 cy = 180 + 2 × 23.6 = 230 mm

Using angle of lacings = 45o, distance (vertical) between connections

= 2 × 230 = 460 mm.

rmin of the single (channel) element = ry = 26.1 mm.

∴  λ′ = l ′/ r ′ =460/26.1 = 17.6; This is less than either

(i)        50 or

(ii)       0.7 × λ = 0.7 × 42.9 = 30 ∴ OK.

164_Design of Lacing.png

Figure

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