CHAPTER IF. 

 POSTS OR COLUMNS. 



General Con- The posts or columns in mill construction 

 struction serve as interior supports for the floor and 



roof girders and carry the load to the foun- 

 dations. Each set of posts should extend from roof to founda- 

 tion without offset, passing through each floor between the 

 ends of the girders for that floor, and resting upon a metal 

 cap on the top of the post of the floor below. The ends of 

 posts should be squared and bear evenly upon the plate of the 

 post cap. At the foundation or pier, the squared end of the 

 timber post should rest on a metal plate placed on top of the 

 pier a little above the level of the basement floor to prevent 

 contact with dampness from the masonry or concrete. A pre- 

 servative treatment applied to the ends of the post is advisable 

 if dampness is likely to be present. 



Post Caps The general alignment of the columns is pre- 

 and Pintles served by the floor and roof girders which rest 

 upon side brackets projecting outward from the 

 post cap. Figs. 8 to 10 show a few of the types of metal post 

 caps which are in use in different parts of the country. 



Fig. 11 shows a type 

 of pintle and post cap 

 which is used to a con- 

 siderable extent in the 

 New England States 

 and is recommended by 

 the Associated Mutual 

 Fire Insurance Com- 

 panies. It should be 

 noted that where no 

 straps are used on the 

 girders, or where post 

 caps without projecting 



Pintle 



Tarred 

 Paper 



Fig. 11. 



Pintle and Post Cap Type of 

 Construction. 



Page twenty-seven 



