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1. Draw influence lines for shear and moment at 15, 25, and 30 feet from the left support for a simply supported beam with a span of 60 feet. Show values of maxima. 2. Using the influence lines in part 1, determine the shear and moment at 15, 25, and 30 feet for a uniformly distributed load of 50 k/ft applied over the length of the beam required to produce the maximum shear and moment at each point. 3. Using the influence lines from part 1, determine the maximum shear and moment at 15, 25, and 30 feet for the system of concentrated loads shown below. The system of loads can move along the beam in either direction. 60k 100k 100 40



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twh Yom 11.25 k-J o me 1-25 んhen t 2 나 2.

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