A concrete slab is reinforced by / 8 -in.-diameter steel rods placed on 5.5-in. centers as shown. The modulus of elasticity is 3 X 106 psi for the concrete and 29 3 106 psi for the steel. Using an allowable stress of 1400 psi for the concrete and 20 ksi for the steel, determine the largest bending moment in a portion of slab 1 ft wide.
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