A structure as illustrated in the figure is articulated at A and rests on a roller at C. Using Castigliano's second theorem, determine the horizontal displacement of the end C. The support is constituted of square steel bars of 40 mm x 40 mm.
Use E = 240 GPa and consider only the effects of bending.

 

A 1000 mm B 90 2.5 KN 750 mm C