A Steel Beam with a Hollow Rectangular cross section is to support a lateral load of $1200l{b}_{?}$ at its free end as shown in the figure.

a$)$ Calculate the Maximum Bending Stress and b$)$ Maximum Deflection.

c$)$ What steps need to be taken to obtain the Maximum Shear Stress?! How long will this take?

Given:

Material: Steel with:

$S_Y=36,000$

Modulus of Elasticity, $E=29{10}^6$ psi

L $=$ Length, $L=6\mathrm{.}5ft.$

Section Geometry: Prismatic Rectangular Tubing with $B=3",b=2",H=6",h=5^{\text{'}\text{'}}$

$I=(\frac{1}{12})[B{H}^3-b{h}^3]$