92 



STEEL OFFICE BUILDINGS. 



CHAP. II. 



Dimensions in inches 



COLUMN BASES, CAST /POM 



Drill holes in cap plate tosvft cofumn- 

 Core two drain holes (one each side) 



j? o'fameterin lower end of hub 

 Core holes 2 "diameter in baseplate- 

 Thickness of hub rib "6 "applies only 



to bases used with channel columns 



For plate & angle columns, hub rib "6" 

 C_* ^ /sco be increased when necessary 



FIG. 13. CAST IRON COLUMN BASES. AMERICAN BRIDGE COMPANY. 



