Table 2. Cable End Conditions for the Measurement of Rotational Properties 



Type 



of 

 Cable 



Diameter 



(in.) 



Preset Angular Rotation for Fixed-End Tests (deg) — 



Free-End 



Rotation 



Tests 



Run 1 



Run 2 



Run 3 



Run 4 



Run 5 



Run 6 



Run 7 



Run 8 



Run 9 



1x4 



6x11 



3x19 



1x4 



1x81 



1x48 



0.5 



0.5 



0.5 



0.66 



1.5 



1.5 



161 

 305 

 265 

 201 

 79 

 95 



75 

 142 

 114 

 94 

 39 

 44 



32 

 61 

 49 

 40 

 19 

 19 



11 

 20 

 16 

 13 

 9 

 6 





 

 

 

 

 



-11 

 -20 

 -16 

 -13 

 -9 

 -6 



-32 

 -61 

 -49 

 -40 

 -19 

 -19 



-75 

 -142 

 -114 

 -94 

 -39 

 -44 



-161 

 -305 

 -265 

 -201 

 -79 

 -95 



One end 

 rotated 

 manually 

 to obtain 

 zero torque 



Table 3. Value of EI for 1x48 and 3x19 Cables 



Tension 



(lb) 



EI (in. 2 -lb) 



Measured Rotation 



Averaged Rotation 



Positive 



Negative 



Positive 



Negative 



1x48 Double-Armored Cable 



1,022 



38,600 



1,760 



38,600 



1,940 



522 



38,500 



1,980 



37,000 



1,850 



256 



30,600 



1,480 



31,900 



1,580 



139 



20,400 



1,210 



27,500 



1,350 



91.5 



24,600 



1,700 



25,200 



1,220 



59.5 



22,700 



1,060 



22,500 



1,105 



49.5 



22,706 



1,060 



21,800 



1,070 



27.5 



18,850 



1,215 



19,400 



970 



3x19 Multistrand Torque-Balanced Cable 



30.5 



906 



1,530 



980 



1,530 



51.5 



965 



1,790 



990 



1,760 



69.5 



1,250 



1,850 



1,020 



1,960 



91.5 



1,020 



2,270 



1,060 



2,180 



112.5 



1,100 



- 



1,080 



- 



36 



