고체역학 (Gere) — Stresses in Beams (Basic Topics): Problem 5.5-30

5.5-30 Beam ABCDE has a moment release just right of joint B and has concentrated moment loads at D and E. In addition, a cable with tension P is attached at F and runs over a pulley at C (Fig. a). The beam is constructed using two steel plates, which are welded to form a T cross section (see Fig. b). Consider flexural stresses only. Find the maximum permissible value of load variable P if the allowable bending stress is 130 MPa. Ignore the self-weight of the frame members and let length variable L = 0.75 m.