15
L
APPENDIX B
1.8m ANTENNA SURVIVAL WINDLOADS AT 125 MPH VELOCITY
ELEVATION FORCE MOMENTS
DEGREES (POUNDS)* (FOOT-POUNDS)**
MECH. BEAM F
H
F
V
M
T
M
O
0 23 1824 -47 1073 8,436
10 33 1726 -365 1035 7,983
20 43 1677 -710 984 7,756
30 53 1519 -1008 892 7,025
40 63 1337 -1215 756 6,184
50 73 1166 -1337 635 5,393
60 83 972 -1398 491 4,496
70 93 729 -1082 378 3,372
M
o
BASED ON 55.5” FROM MOUNTING SURFACE TO C OF ANTENNA.
*kg = Pounds x .45359
** N.m = Foot-Lbs. x 1.35582
Values shown above represent maximum forces for any wind direction.
Height and exposure factors from the uniform building code are NO
T included.
FIG. 4.0
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