3/8"
3/8"
4 1/2"
1"
EQUAL
EQUAL
ANTENNA CENTERLINE
CL
COLLAR
MOUNT
SFA CL
ANTENNA CL
6"
6"
MAX OFFSET VALUE [6] ALLOWS FOR 6"
VERTICAL OFFSET FROM MOUNT CL IN
EITHER DIRECTIONS
SFA CL
ANTENNA CL
SFA CL FALLS
BETWEEN THE
TWO FACE
ANGLES
6"
6"
ALLOWABLE ADJUSTMENT RANGE
MEASURED FROM MOUNT CL
CL
Step 1 Instructions
IMPORTANT MOUNT CLASSIFICATION INFORMATION (FOR ANALYZING):
STANDARDS: TIA-222-G, TIA-222-H, TIA-5053
•
MAX STRUCTURE HEIGHT: 400ft
•
STRUCTURE CLASS: I OR II
•
EXPOSURE CATEGORY: B OR C
•
MOUNT CLASSIFICATION INFORMATION:
STANDARDS: TIA-222-G, TIA-222-H, TIA-TSB-5053
•
MAX STRUCTURE HEIGHT: 400ft
•
DESIGN WIND SPEED: 120mph 3-Second Gust
•
STRUCTURE CLASS: I OR II
•
EXPOSURE CATEGORY: B OR C
•
TOPOGRAPHIC CATEGORY: 1
•
DESIGN WIND PRESSURE: 135psf
•
DESIGN WIND PRESSURE (ICED): 15psf
•
DESIGN ICE THICKNESS (RADIAL): 2.75"
•
MOUNT CLASSIFICATION TO BE USED TO:
CLASSIFY MOUNTS AND ALLOW ENGINEERS TO VERIFY CURRENT LOADING/FUTURE LOADING CHANGES
TO THE MOUNT
MAXIMUM ALLOWABLE OFFSET NOTE:
THE (VERTICAL) OFFSET FACTOR STATES HOW MANY INCHES THE CENTERLINE OF ANTENNA EQUIPMENT LOADING
MAY BE OFFSET FROM THE MOUNT CENTERLINE.
THIS VERTICAL OFFSET FACTOR IS NOT TO BE EXCEEDED.
IF MAXIMUM
OFFSET IS EXCEEDED, THE MOUNT WILL NOT MEET THE CLASSIFIED LOADING.
TOPOGRAPHIC CATEGORY: 1
•
DESIGN WIND PRESSURE: 135psf
•
DESIGN WIND PRESSURE (ICED): 15psf
•
DESIGN ICE THICKNESS (RADIAL): 2.75"
•
MAXIMUM ALLOWABLE OFFSET NOTE:
THE (VERTICAL) OFFSET FACTOR STATES HOW MANY INCHES THE CENTERLINE OF ANTENNA EQUIPMENT LOADING
MAY BE OFFSET FROM THE MOUNT CENTERLINE.
THIS VERTICAL OFFSET FACTOR IS NOT TO BE EXCEEDED.
IF MAXIMUM
OFFSET IS EXCEEDED, THE MOUNT WILL NOT MEET THE CLASSIFIED LOADING. IN A SINGLE COLLAR MOUNTING
SCENARIO, THE INCLUSION OF AN UPPER RAIL DOES NOT AFFECT THE LOCATION OF THE MOUNT CENTERLINE.
ANTENNA CENTERLINE & MAXIMUM ALLOWABLE OFFSET:
THE CENTERLINE OF AN ANTENNA EXISTS AT AN EQUAL DISTANCE BETWEEN THE TOP AND BOTTOM END OF THE MAIN
ANTENNA BODY (AS SHOWN BELOW). IN THIS EXAMPLE THE MAXIMUM OFFSET FACTOR VALUE WILL BE [6] FROM
TABLE 1.
IN THIS INSTANCE THE ANTENNA CL IS
PLACED WITHIN THE ALLOWABLE OFFSET
DISTANCE FROM THE MOUNT CL .
THEREFORE IT MEETS THE CLASSIFIED
LOADING.
ANTENNA CL IN
RELATION TO SFA MOUNT CL
MAX ALLOWABLE OFFSET
DETAIL
Table 1: Mount Classification Identification Example
M
1750R(1450)-4[6]
Used at the beginning of each mount identification.
M
1750
R(1450)-4[6]
The maximum factored horizontal force (
1750
lbf), F, considered for design under extreme wind condition at
each mounting pipe location.
M1750
R
(1450)-4[6]
Classification category.
M1750R(
1450
)-4[6]
Maximum factored vertical force (
1450
lbf), Fzi, considered for design under extreme ice condition at each
mounting pipe location.
M1750R(1450)-
4
[6]
The mount is designed for (
4
) mounting pipe locations per sector.
M1750R(1450)-4[
6
]
The centerline of the maximum horizontal concentrated force, F, may be offset vertically from the mount
centerline by up to
6
inches.
NONE
205.20
Material <not specified>
MOUNT CLASSIFICATION IDENTIFICATION REFERENCE PAGES
www.perfect-vision.com
PV-SFA-INS-01-R6
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