CHAPTER XV. 



COMBINED AND ECCENTRIC STRESSES. 



Combined Direct and Cross Bending Stresses. Thus 



far members of trusses and frameworks have been considered as 

 acted on by direct forces, parallel to the axis of the member. While 

 this is the more common case, it often becomes necessary to design 

 members which support loads as in (a), (b), (c), or (d), Fig. 77, or in 

 which the line of action of the external force does not coincide with the 

 neutral axis of the member, (e), (f), (g), or (h), Fig. 77. 



(a) 



k 



(e) 



* 



FIG. 77- 



