160 



Concrete Silos 



carry little weight, as either type may 'be made suffi- 

 ciently strong. 



Non-continuous doors are often put in with a dis- 

 tance of about 2% feet between them, but the spacing 

 may vary to suit the individual owner. In all cases 

 the arches between the doors must contain an amount 



Method of Reinforcing Around Intermittent Door Openings. 



of reinforcing equivalent to the full amount of hori- 

 zontal reinforcing put around the silo. Thus, if the 

 doors are 3 feet in height, with a distance of 2% feet 

 between them, the horizontal reinforcing in the space 



