For Problems 4.5 to 4.9, design rectangular sections for the beams, loads, and values given. Beam weights are not included in the given loads. Show sketches of beam cross sections, including bar sizes, arrangement, and spacing. Assume concrete weighs 150 lb/ft'. Use h=d+2.5 in. wp and w Problem No. 4.5 Jy (psi) (psi) Span (ft) wo not incl. beam wt (k/ft) w1 (k/ft) 60,000 4000 24. 2 2.8 = 0.0075

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