GRAPHIC RESOLUTION 



IO' 20' 50* 



43 



I fc) i 



Joint Lo 



Wl. 



<g> 



a 

 Joint Li 



h) 



O_ 4000 800O I2OOO 



5cale of Stresses 



-x,- T 



P 'R,+ 



' I I 



X 2 



Xz 



** 



s* 



(k) "x- 1 



Stress Diagram 



gon by double arrows, and the unknown forces are indicated in direc- 

 tion by single arrows. 



The stresses in the members of the right segment of the truss are 

 the same as in the left, and the force polygons are, therefore, not con- 

 structed for the right segment. The force polygons for all the joints 

 of the truss are grouped into the stress diagram shown in (k). Com- 

 pression in the stress diagram and truss is indicated by arrows acting 



