HomeMy WebLinkAboutAT Structual Analysis 10-25-2021I
AMER1CANTQWEW
C 0 A P 0 R A f 1 0 N
This report tares prepared for American tower Corporation by
T 0 W E R
ENGINEERING
PROFESSIONALS
Structural Analysis Report
Structure 1030 ft Guyed Tower
ATC Site Name Hartford - Nyc,CT
ATC Site Number
Engineering Number
Proposed Carrier
Carrier Site Narne
Carrier Site Number
Site Location
County
Date
Max Usage
Result
Prepared By
Jack Davis
TEP
302532
13726721002
DISH WIRELESS L.L.C.
BOBOS00022A
BOBOS00022A
1337 Route 85
Oakdale, CT 06370-1832
41.4178, -72.1981
New London
October 25, 2021
72%
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Reviewed By:
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Tosser Engineering Professionals, Inc. — 326 Tryon Road - Raleigh, NC 27603 - 919 661-6351 Office - 919 6616351 Fax - w,,r,iAcpgroup,net
Eng. Number 13726721_C3_02
October25, 2021,
Page.2
Table of Contents
Introduction...................................................................................................................................3
Stlppor"Ling Documents- .............................................................................................................
— 3
Analysis..........................................................................................................................................3
Conclusion.....................................................................................................................................3
Existing and Reserved Equipment..................................................................................................4
Equipmentto be Removed.. ..........................................................................................................
4
ProposedEquipment.....................................................................................................................4
StructureUsages............................................................................................................................5
Foundations...................................................................................................................................5
Deflection, Twist and Sway* ..........................................................................................................5
StandardConditions......................................................................................................................6
Calculations....................................................................Attached
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Eng. Number 13726721_C3_02
October 25, 2021
Page. 3
Introduction
The purpose of this report is to summarize results of a structural analysis performed on the 1030 ft
Guyed tower to reflect the change in loading by DISH WIRELESS L.L.C..
Supporting Documents
Tower Drawings
TSL Dwg No. 4335-E, dated November 6, 1985
TSL Dwg No. YCB20.000, dated March 26, 1986
Foundation Drawing j
TSL Dwg No. BE 20.0001, dated April 22, 1986
Geotechnical (deport
I PSI Project No. 862-05163
Analysis
The tower was analyzed using American Tower Corporation's tower analysis software. This program
considers an elastic three-dimensional model and second -order effects per ANSI/TIA-222.
Basic Wind Speed:
Basic Wind Speed w/ Ice:
125 mph (3-second gust)
50 mph (3-second gust) w/ 1.00" radial ice concurrent
Code:
ANSI/TIA-222-11 / 2015 IBC / 2018 Connecticut State Building Code
Exposure Category:
B
Risk Category:
II
Topographic Factor Procedure:
Method 1
Topographic Category:
1
Spectral Response:
Ss = 0,20, S, = 0.05
Site Class:
D - Stiff Soil - Default
**Wind load and Ice thickness have been reduced by applicable existing structure load modification factors in accordance with
TIA-222-1-1, Annex S.
Conclusion
Based on the analysis results, the structure meets the requirements per the applicable codes listed
above. The tower and foundation can support the equipment as described in this report.
If you have any questions or require additional information, please contact American Tower via ernail
at Engineering@americantower.com. Please include the American Tower site name, site number, and
engineering number in the subject line for any questions.
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