288 



CONCRETE DESIGN 



ULTIMATE CRUSHING STRENGTH OF BRICK MASONRY 

 PIERS 



(Average Age of Brickwork, 6 Months) 



Eccentrically Loaded Column. The stress on an eccen- 

 trically loaded column is computed by the following formulas: 

 For circular columns, 



P $ ep 



For rectangular columns, 



P 6eP e 

 - 



In these formulas, s is the stress, in pounds per square inch, 

 developed in the column; P, the total load on the column, in 

 pounds; A, the area of column section, in square inches; 

 e, the eccentricity of eccentric part of load, in inches; P e , 

 the eccentric part of load in pounds; d, the diameter of 

 column, or dimensions measured in the plane of the eccen- 

 tricity, in inches. 



