A beam is subjected to equal 19.6 kip-ft bending moments. Assume t1 = t2= tw= 1 in., d = 13 in., b1 = 4 in., and b2= 7 in. The %3D cross-sectional dimensions of the beam are illustrated. Determine: (a) the distance y to the centroid (measured from the bottom), the moment of inertia lz about the z axis, and the controlling section modulus S, about the z axis. (b) the bending stress oH at point H (positive if tension, negative if compression). (c) the bending stress ok at point K (positive if tension, negative if compression). (d) the maximum bending stress ơmax produced in the cross section (positive if tension, negative if compression).
A beam is subjected to equal 19.6 kip-ft bending moments. Assume t1 = t2= tw= 1 in., d = 13 in., b1 = 4 in., and b2= 7 in. The %3D cross-sectional dimensions of the beam are illustrated. Determine: (a) the distance y to the centroid (measured from the bottom), the moment of inertia lz about the z axis, and the controlling section modulus S, about the z axis. (b) the bending stress oH at point H (positive if tension, negative if compression). (c) the bending stress ok at point K (positive if tension, negative if compression). (d) the maximum bending stress ơmax produced in the cross section (positive if tension, negative if compression).
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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