CONSOLIDATED STEEL CORPORATION 51 



DIMENSIONS AND PROPERTIES OF 

 BETHLEHEM ROLLED H-COLUMNS 



The tables on pages 52-59 and 60-67, inclusive, give the dimensions, weights, 

 areas and structural properties of the H-Column Sections for all the variations 

 in size which are rolled. 



The dimension T given in the tables is the nominal average thickness of the 

 flange and is stated in even fractions of an inch, and nearest metric equivalents, 

 for convenience. 



The clear distance between the flange fillets is denoted by the dimension L, 

 given in the tables, and is the depth of the flat surface of the web available for 

 connections. 



All columns having the same section number are from the same rolls. Thus 

 all the sizes of 14-inch H-Columns tabulated on pages 52-53 and 60-61 are pro- 

 duced by the same rolls, the variations in dimensions of the series of sections 

 being formed by the proportionate separation of the horizontal and vertical 

 rolls. 



In selecting columns it is advisable wherever possible to secure the desired 

 range of size, from minimum to maximum, by confining the selection to columns 

 having the same section number, as all the columns can then be secured from 

 the same rolling. 



The moment of inertia, section modulus and radius of gyration are given 

 around both axes for all columns. The section modulus around the axis XX 

 may be used to determine the transverse strength, in case it is desired to use 

 the column sections as beams. The coefficient of strength for such purpose 

 may be obtained in the following manner: 



where f = allowed fiber stress in pounds per square inch, and S = the sec- 

 tion modulus. 



The section modulus is also of use where columns are subject to bending due 

 to eccenl ric loading. The use of the radius of gyration is explained on page 92, 

 in connection with the tables of strength of columns. 



Typical connections and splices for H-Columns are shown on page 157, from 

 which the simplicity of detail and the small amount of fabricatiop required 

 for these columns are apparent- 



