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QUESTION THREE Design a double cover butt joint for a bridge truss. The width and thickness of the plates to be joined are 28.5cm

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QUESTION THREE Design a double cover butt joint for a bridge truss. The width and thickness of the plates to be joined are 28.5cm and 1.25cm respectively. The diameter of the rivets is 21mm. Ultimate shear stress are; 7=150MPa, , 210MN/m and =124N/mm. Factor of safety is 2 and the pitch of rivets is three times rivet diameter. In your design, Determine; (a) Total number of rivets required. (b) Safe load per pitch length of rivets (c) Efficiency per pitch length of rivets

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