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Table 2.2

Part 2

Therefore 2.4.3

Table 2.2

3.4.4.1.3 Total stiffness

3.4.4.2 Thicknesses of equivalent thin-walled sections t = - > the actual wall thickness 4.3.3.1(6)

u where u = outer circumference of the section A = total area within the outer circumference

3.4.4.2.1 Top and bottom flanges u = (310 + 200)2 = 1020 mm A = 310 x 200 = 62 x 103 mm2

Therefore

62 x 103

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