Solution to Problem 595 | Spacing of Rivets or Bolts in Built-Up Beams
Problem 595
A concentrated load P is carried at midspan of a simply supported 12-ft span. The beam is made of 2-in. by 6-in. pieces screwed together, as shown in Fig. P-595. If the maximum flexural stress developed is 1400 psi, find the maximum shearing stress and the pitch of the screws if each screw can resist 200 lb.
![595-box-beam-held-by-screws.jpg](/sites/default/files/reviewer-strength/05-stresses-beams/595-box-beam-held-by-screws.jpg)