Art. 176. 



STRESSES DUE TO CURVED TRACK. 



357 



It will be noted that the wind may have the same or oppo- 

 site effect, to that of the centrigufal force, in the lower chord, 

 and that the maximum compression in the lower chord due to 

 centrifugal force, does not occur when there is a maximum ten- 

 sion in this chord from vertical load. 



