A 16-ft-long beam carries a uniformly distributed load of 260 lb/ft across its entire length. Reaction R1 is a pinned support, and reaction R2 is a bearing support. Both reactions are equal to 2080 lb. The beam has a section with a constant breadth of #### in. The beam consists of a material with a maximum allowable bending stress of 1500 lb/in2.
(a) Calculate bending moment at l-ft intervals across the beam length (from 0 to 16 ft).
(b) Use the flexure formula to determine the required section modulus of the beam section at 1-ft intervals across the beam length.
(c) From Chapter 14, a section modulus of a rectangular section is related to breadth (b) and depth (d) of the section by the formula Srectangular = bd2/6. Determine the required depth of the section at 1-ft intervals across the beam length.
(d) Draw a plot of required depth of the section versus beam length.
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