PROB. 21 22. A beam made up of two unequal leg angles is subjected to a bending moment M having its vector at an angle i (a) For the position shown in the figure, determine the orientation of the neutral axis and calculate the to the z axis (see figure part a). 30° and M = maximum tensile stress o, and maximum compressive stress o, in the beam. Assume that 0=: (b) The two angles are now inverted and attached back-to-back to form a lintel beam which supports two courses of brick façade (see figure part b). Find the new orientation of the neutral axis and calculate the maximum tensile stress o, and maximum compressive stress o, in the beam using 0 = 30° and M= 3.5 kN-m. 3.5 kN m. L 120 X 80 X 12 M 19 mm (a) Lintel beam supporting L 120 X 80 X 12 brick facade M (b)

PROB. 21 22. A beam made up of two unequal leg angles is subjected to a bending moment M having its vector at an angle i (a) For the position shown in the figure, determine the orientation of the neutral axis and calculate the to the z axis (see figure part a). 30° and M = maximum tensile stress o, and maximum compressive stress o, in the beam. Assume that 0=: (b) The two angles are now inverted and attached back-to-back to form a lintel beam which supports two courses of brick façade (see figure part b). Find the new orientation of the neutral axis and calculate the maximum tensile stress o, and maximum compressive stress o, in the beam using 0 = 30° and M= 3.5 kN-m. 3.5 kN m. L 120 X 80 X 12 M 19 mm (a) Lintel beam supporting L 120 X 80 X 12 brick facade M (b)

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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