A simply supported beam (L = 4.5 m) must support mechanical equipment represented as a distributed load with intensity q =- 30 kN/m acting over

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A simply supported beam (L = 4.5 m) must support mechanical equipment represented as a distributed load with intensity q =- 30 kN/m acting over the middle segment of the beam (see figure). Select the most economical W-shape steel beam from Table F-1(b) to support the loads. Consider both the distributed force q and the weight of the beam. Use and allowable bending stress of 140 MPa.

Table F-1(a)

(b)

9 T | ++ 3 B