Question: Problem 4 : A W 2 7 2 1 2 9 beam of A 9 9 2 steel is strengthened by bolting PL 3 4

Problem 4: A W272129 beam of A992 steel is strengthened by bolting PL 3416 of A572 Gr.50 steel to each flange as shown in Figure 4. Determine the spacing required for 3/4-in. diameter A490 bolts used in a bearing-type connection for each segment (AB, BC, and CD) of the beam. Assume that the bolt threads are included in the shear plane. Ignore the self-weight of the beam.
[Hint: You need to compute the shear flow for the force demand in the bolts in each segment. Also, AISCS specifies a maximum spacing requirement regardless of shear demand.]
Problem 4 : A W 2 7 2 1 2 9 beam of A 9 9 2 steel

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