5 A T-shaped simply supported beam has the cross section shown in Figure P1.4. It has (11 m), is loaded with a gravity live-load unit intensity W = 2,500 plf (36.5 kN/), and with twelve -in.-dia (twelve 12.7-mm-dia) seven-wire stress-relieved strands. Com crete fiber stresses at service load by each of the following methods: (a) Basic concept (b) C-line (c) Load balancing Assume that the tendon eccentricity at midspan is e,= 9.6 in. (244 mm). Then given th fi - 5,000 psi (34.5 MPa) f. - 12Vf: - 849 psi (5.9 MPa) - 165.000 psi (1,138 MPa)

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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.