Inclined Struts (GE and HE):
The inclined struts GE and HE are designed for a compressive force of 26,077 N.
The actual length of the member = 2.5/sec 26.56 = 2.8 m
Effective length = 0.85 × 2.8 =2.38 m
Select IS angle 65 × 65 × 6 mm @ 5.8 kg
Area = 7.44 cm2, rmin = 1.26 cm
∴ Slenderness ratio, λ = 2380/12.6= 189
Corresponding, σac = 30
Allowing 33% increase for wind effects σac (perm) = 40 MPa
∴ Allowable axial compression = 40 × 744 = 29,760 N
> 26,077 N ∴ OK.