BENDING-MOMENT AND SHEAK DIAGRAMS 45 



2000 Ibs. 



200 



Scale: 



1 diyiaion 



dtvia 



200. 



bs. 



Shear 



iagram 



400 b 



3 



Mo 



D ai 



Seal 



Ibsj 



FIG. 45 



be as many different segments of the moment and shear diagrams 

 as there are segments of the beam between concentrations. 



3. For a simple beam, take the origin at the left end of the beam. 

 For a cantilever beam, take the origin at the free, or unsupported, end 

 of the beam. Keep the origin at this point throughout the calculations. 



