Page 125 - McWane Poles Sales Manual 2024

Sales Manual • 2024
125
Results:
H4 Tip Load (5.66 kips)
The H4 pole design is based on a 5.66 kip load applied 2' from the tip. The measured tip deflection for
cycle 2 is 87 .8" (measured at class load) minus the 10.9" at the start of cycle equals 76.9" This value is
greater than the calculated deflection shown in the PLS pole design output of 53.4 inches. This difference
could be attributed to pole rotation at the supports when compared to a theoretical fixed groundline.
Yield Tip Load (5:96 kips)
The yield tip load was calculated to be 5.96 kips. This value is the point along the pole where the actual
bending stress reaches a calculated bending stress of 42 ksi. The measured tip deflection for cycle 2 is 94
inches (measured at yield) minus the 11" at the start of cycle 2 equals 83". This value is greater than the
calculated deflection shown in the PLS pole design output of 56.2 inches.
Failure Tip Load (6.73 kips)
The 6.73 kip load applied 2' from the tip resulted in a pole failure of the compression face at the
groundline.
Conclusion:
The 80/H4 ductile iron pole was subjected to a full-scale, horizontal bending test. The ultimate failure tip
load was 6.73 kips which was 118.9 percent of the H4 class load and 112.9 percent of the calculated yield
tip load.