1. Design of a Highway Sign: The sketch below shows a typical highway sign. The objective of this problem is to design the column (vertical beam element) holding the sign using a stress-strength approach. In this problem, we consider only the effect of a wind load acting perpendicular to the face of the sign (the self-weights of the beam structure and of the sign are neglected). h/ZL hf2h/2 H MIT ___ __ _l__l Determine the distribution of the section quantities: normal force, shear force, bending moment and torsion moment for the column. Display quantitatively the results for all section quantities in the form of force and moment diagrams. Design the crosssection of the column using a strength criterion given a design wind pressure, p . The beam section is a hollow square, whose dimensions are displayed on the sketch below. The thickness of the wall of the beam is very small with regard to the width of the beam, i.e. t