A wooden beam is fabricated from three boards to form a double-tee cross section. Assume L1 = 14 in., L2 = 6 in., and t = 2.25 in. The beam flange is fastened to the stem with nails. Bending will occur about the z axis. If one were trying to find the maximum permissible spacing interval s for the nails, what value of Q would one use? The centroid is located 5.221 in. above the bottom surface of the beam. L1 Nails TT L2 O 60.0 in.3 O 36.6 in.3 n 559 in 3

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Chapter2: Loads On Structures
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A wooden beam is fabricated from three boards to form a double-tee cross section. Assume L1 = 14 in., L2 = 6 in., and t = 2.25 in. The
beam flange is fastened to the stem with nails. Bending will occur about the z axis. If one were trying to find the maximum
permissible spacing interval s for the nails, what value of Q would one use? The centroid is located 5.221 in. above the bottom
surface of the beam.
L1
Nails
L2
O 60.0 in.3
O 36.6 in.3
O 55.9 in.3
O 50.4 in.3
O 43.4 in.3
Transcribed Image Text:A wooden beam is fabricated from three boards to form a double-tee cross section. Assume L1 = 14 in., L2 = 6 in., and t = 2.25 in. The beam flange is fastened to the stem with nails. Bending will occur about the z axis. If one were trying to find the maximum permissible spacing interval s for the nails, what value of Q would one use? The centroid is located 5.221 in. above the bottom surface of the beam. L1 Nails L2 O 60.0 in.3 O 36.6 in.3 O 55.9 in.3 O 50.4 in.3 O 43.4 in.3
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