Multiple choice

A moment M of magnitude 50 kN-m is transmitted to a column flange through a bracket by using four 20 mm diameter rivets as shown in the figure. The shear force induced in the rivet A is

  1. 250 kN

  2. 175.8 kN

  3. 125 kN

  4. 88.4 kN

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The moment M induces a shear force F = M*r / sum(r^2) in each rivet, where r is the distance from the centroid. With four rivets, the shear force is calculated by considering the moment arm and the geometry of the rivet group.