7.0 



6.0 



5.0 



4.0 



3.0 



2.0 



I St ANTISYMMETRIC 

 MODE 



\ 



•X 



INCLINATION 

 ANGLE 

 X-0° 

 + -20° 

 • -30° 



I St ANTISYMMETRIC 

 MODE 



V 1st SYMMETRIC 

 \ MODE 



\ 

 \ 

 \ 



\ 



J I L 



0.05 0.1 



0.2 



05 



20 



5.0 



10.0 20.0 



50.0 



SAG-TO-SPAN RATIO, s/e X 10' 



Figure Bti Measured and calculated natural frequencies for an inclined, slack Double Armor Steel (DAS) cable. 



Cable diameter/) = 1.55 cm (0.61 in.). 



137 



