COLUMN DETAILS 



205 



feet by means of batten plates, are quite frequently used for light loads. 

 Column Details. The details of a 4-angle laced column attached 

 to a truss are shown in Fig. 96 ; and the details of a 4-angle plate column 

 are shown in Fig. 97. The details of bases for 4-angle, I beam and 

 angle columns are shown in Fig. 99. 



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FIG. 99. 



Shop details of a 4-angle column are shown in Fig. 100. This 

 column was designed for a mill building with a span of 60 feet, trusses 

 spaced 16 feet apart. The long legs of the angles are placed out, to give 

 a larger radius of gyration about an axis at right angles to the direc- 

 tion of the wind. The details of a 4-angle and plate column, designed 

 to carry a crane girder as well as the roof, are shown in Fig. 101. 



The details of a heavy column composed of two channels placed 

 back to back and laced, are shown in Fig. 102 ; the lacing is heavy and 

 is well riveted. The bent plate connections for the anchor bolts on 

 this column are very satisfactory. This is one of the columns used in 

 the A. T. & S. F. R. R. shops at Topeka, Kas., to carry the crane 

 girders. 



The shop details of a light channel column are shown in Fig. 103. 

 The single lacing alternates on the two sides of the column. The 

 various details of the columns can be seen, and require no explanation. 



