Determine bolt value 16mm diameter bolt of 4.6 grade to connect two angles 90×60×6mm back to back on opposite sides to gusset plate 8mm thick. Also determine number of bolts for direct factored load 110KN. Draw neat sketch.
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Explanation:
In 4.6, The first number 4 indicates 1/100 of nominal tensile strength . Hence the tensile strength = 400 Mpa. The second number indicates 10 times the ratio between lower stress(proof stress) and nominal tensile strength(yield stress ratio) means, 10 times the yield stress = 10 x 240/400 = 2400/400 = 6
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