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Calculate the minimum effective net area for the given section (300mm width, 10mm thick) connected to a 10 mm thick gusset plate by 18mm diameter bolts.(a) 2796mm^2(b) 2681mm^2(c) 2861mm^2(d) 3055mm^2I got this question in homework.My query is from Design of Tension Members topic in chapter Design of Tension Members of Design of Steel Structures

Answer»

The CORRECT OPTION is (b) 2681mm^2

For explanation I would say: B = 300MM, t = 10mm, dh = 18+2 =20MM, n = 3, n’ = 1, p = 75mm, g = 50mm

Effective NET area = (B-ndh+n’p^2/4g)t = (300 – 3×20 + 1×75^2/4×50)x10 = 2681.25 mm^2.



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