Art. 139. SKEW BRIDGES. 283 



shaded areas in Fig. 197 indicate the parts of the floor tributary 

 to the panel points 6 and b'. 



The inclinations of the diagonals, the panel lengths, and 

 the panel loads all being irregular, the method of coefficients 

 cannot be used, but the stresses must be calculated from the 

 moments and shears directly. 



'~UEASE RETURN TO 



OT. of APPLIED MECHANICS, 



