Page 121 - McWane Poles Sales Manual 2024

Sales Manual • 2024
121
Results:
H2 Class Load (4.16 kips)
The H2 pole design is based on a 4.16 kip load applied 2' from the tip. The measured tip deflection for cycle
2 is 66.3" (measured at class load) minus 6.9" at the start of cycle 2 equals 59.4". This value is greater than
the calculated deflection shown in the PLS pole design output of 49.1 inches. This small difference could be
attributed to pole rotation at the supports when compared to a theoretical fixed groundline.
Yield Tip Load (4.41 kips)
The yield tip load was calculated to be 4.41 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
68.1" (measured at yield load) minus 6.9" at the start of cycle 2 equals 61.2". This value is greater than the
calculated deflection shown in the PLS pole design output of 52 inches.
Failure Tip Load (4.80 kips)
The 4.80 kip load applied 2' from the tip resulted in a pole failure at the groundline. The failure was
buckling of compression face at the support point.
Conclusion:
The 70/H2 ductile iron pole was subjected to a full-scale, horizontal bending test. The ultimate failure tip
load was 4.80 kips which was 115.4 percent of the H2 Class load and 108.8 percent of the calculated yield
tip load.