172 



CAMBKIA STEEL. 



PROPERTIES OF VARIOUS SECTIONS. 



Sections. 



Area of Section. 

 A 



Distance from Neutral 



Axis to Extremities 



of Section. 



x and xi 



~2 d* tan. 30 = .866d* 



2 cos 30 



.577d 



2d2 tan. 22i = .828 d* 



bd 



= .785 bd 



1 



td + 2b' (s + n') 



d 



XX-- 



td + 2b' (s + n') 





td + b' (s + n') 



- 





(b + 2t) ] -=- A 

 xi=b-x 



