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Bolted connections

What is the minimum spacing of bolts specified by AISC? and preferred spacing?
A. 1 1/4 times the diameter of the bolt; 2 times preferred
B. 1 3/4 times the diameter of the bolt; 2 1/4 times preferred
C. 2 1/3 times the diameter of the bolt; 2 2/3 times preferred
D. 2 2/3 times the diameter of the bolt; 3 times preferred
E. 3 times the diameter of the bolt; 3.25 times preferred



Answer: D. 2 2/3 times the diameter of the bolt; 3 times preferred. For bolt sizes no greater than 1 inch in diameter, a dimension of 3 inches is commonly used.

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