Question

If bolt group is subjected to applied moment and torque, the number of bolts is given by

(a) √(6Mn’pVsd)

(b) √(6Mn’/pVsd)

(c) √(6M/n’pVsd)

(d) √(6Mn’p/Vsd)

This question was addressed to me in an online quiz.

This question is from Moment Resistant & Beam-to-Beam Connections topic in chapter Bolted Connections of Design of Steel Structures

Answer 1

Correct answer is (c) √(6M/n’pVsd)

Explanation: If bolt group is subjected to applied moment and torque, the number of bolts is given by n = √(6M/n’pVsd), where p=pitch, M=applied moment, Vsd = design shear strength of single bolt, n’ = number of rows of bolt.