Gere & Goodno — Stresses in Beams (Basic Topics): Problem 5.6-2

5.6-2 A simply supported beam (\(L = 4.5\text{ m}\)) must support mechanical equipment represented as a distributed load with intensity \(q = 30\text{ kN/m}\) acting over the middle segment of the beam (see figure). Select the most economical IPN shape steel beam from Table F-2 to support the loads. Consider both the distributed force \(q\) and the weight of the beam. Use an allowable bending stress of \(140\text{ MPa}\).