Three distributed loads act on a beam as shown. The load between A and B increases linearly from 0 to a maximum intensity of wi = 14.9 lb/ft at point B. The load then varies linearly with a different slope to an intensity of w, = 20.4 lb/ft at C. The load intensity in section CD of the beam is constant at wz = 11.9 Ib/ft. For each load region, determine the resultant force and the location of its line of action (distance to the right of A for all cases). W2 BY NC SA 2016 Eric Davishahl Wi W3 B D Values for dimensions on the figure are given in the following table. Note the figure may not be to scale. Variable Value a 4.90 ft b 7.84 ft 3.92 ft The resultant load in region AB is FRI Ib and acts ft to the right of A. The resultant load in region BC is Fr2 lb and acts ft to the right of A. The resultant load in region CD is Fr3 lb and acts ft to the right of A.

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Bars

In civil engineering, bars refer to steel reinforcement bars or rebars. These are structural members primarily used for reinforcement purposes in masonry works. A bar is characterized by its cross-sectional area, which is negligible compared to its length. Bars are usually manufactured by steel which is uniform throughout the length, or by meshing multiple steel wires. Other materials of the bar include carbon steel, glass fiber, carbon fiber, and basalt fiber. The reinforcing bars are coated with epoxy resins and other materials to enhance some of their properties including corrosion resistance.