Question: Problem 3 (25 points) a) Find reactions at the supports b) Draw the shear diagram c) Draw the Moment diagram Calculate the maximum normal

Problem 3 (25 points) a) Find reactions at the supports b) Draw the shear diagram c) Draw the Moment diagram Calculate the maximum normal stress due to bending. The beam is made of S612.5 as shown below. Properties of S shapes are listed in the last page. (50)(40)=2000 lb 1000 lb (a) F = 0 - 2000 - 1000 + R+ R = 0 B 50 lb/in. A {MB=0 = -RA (16) - 2000 (4) - 1000 (24) R = -2000 lbs RB = 5000 lbs A C 20 in I B 0000 S 6X12.5 RA RB 16 in. 24 in.

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