Choose the section (equal angle) from One Steel catalog and design roof truss compression members

Data:

AS4100 Steel Structure, Australian standards, manufacturer’s catalogues (one steel),

The roof truss configuration is given below,

Now, from the figure, we can see that the total height of the roof pitch is = 3000mm,

The 0.42 Spandek, the sheet is supported by the SZ 15010 purlins,

The spacing of the purlins is = 2915.47mm =2.91 m

The span of the purlin = 10010 mm = 10.01 m

Now, the weight of the 0.42 Spandek = 4.7 kg/m2 (LYSAGHT’S Roofing & walling Installation Manual)

Mass per unit length of SZ 15010 = 2.38 kg/m (LYSAGHT’S Roofing & walling Installation Manual)

 

E A 3000 2000 2000 3000 Roof Truss 000