58 



INFLUENCE DIAGRAMS 



algebraic difference of these two diagrams is the shaded 

 area shown in Fig. 37a and is the influence diagram for 



M 



s corresponding to the member LiL 2 . 

 y 



FIG. 386. VERTICAL SHEAR 



FIG. 38. 



Diagonal of a Two-hinged Arch with Open Web. The 



method followed in drawing the influence diagram for the 

 diagonal is the same as explained for a chord member. 

 The influence diagram for UiL 2 is shown by the shaded 

 area in Fig. 376. 



