Please show all work and steps. Any help will be appreciated and
thank you for your time!
A beam with the cross-section shown in Fig. l(a) has a resisting moment Mr= 9,000 lb in. The thickness of vertical and horizontal members making up the unequal-leg angle cross-section is 0.5 in and the centroid of beam is shown in Fig.
(a) Show that Iy = 6.7393 in4 , Iz = 38.4893 in 4 and Iyz = 9.1304 in4 Be explicit and clear in the equations you use to obtain them. Calculations that lack details will not count towards credit, including partial credit. (b) Determine the orientation of the neutral axis and show its location on a sketch of the cross-section. (You may assume values in part (a) if you were not able to obtain' them). (c) Find the maximum compressive flexural stresses at this section.
0.859in
H
in.
M=9,0001b-in.
8in.4
Z
4in.
2.859in
.50 in
K
Ref.
0.50 in.
0.50in.
50in