DEFLECTION OF BEAMS 



But at O, where x = 0, -^- - 0. Then Const - 



El -- = (ax - \x*} - ux 

 dx 2 \ 2 / 



At the end, that is, where x - a, -^ = 

 and 



or 



u 



Wa 



BM diagram 



FIG. 103. 

 This gives the actugl magnitude of the fixing couple 



and 



El _ o* - * - Wax 

 dx 2 \ 2/4 



W 



" " / o\ 



= -T-CUK X 2 



W/l 1 \ 



Then Ely = (- or 2 - - x*) + Const 



^fc \J O / 



But at O, where x = 0, t/ = 0. Then Const = 



W 



24KI 



299 



