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HomeMy WebLinkAboutA3 T f DECEIVED AAAA1OS' EAw, JUL 2 9 2014 �71�iG 39O SOW170M LLC CITY PLANNING NNING HOUSING US [)EPT OF PLANNING&HOUSING Structural Analysis Report Prepared for: US Cellular 8410 West Bryn Mawr Suite 700 Chicago, IL 60631 ATTN: Mr. Brian Maguire Structure 120 ft Sabre Stealth Monopole Proposed Carrier Verizon and Iowa Wireless Site ID 760559 Site Location West Lincoln, Ames, IA County Story Date February 18, 2014 Usage 33.1% 1 hereby certify that this engineering document was prepared by me or under my direct personal supervision and that I am a duly licensed Professional Engineer under t Qf the Mate of O ~s ignature ate = TAYLOR —x Thomas L.Taylor r PE 201<0 nr4 =v License number20140 My license renewal date is December 31,2015. Pages or sheets covered by this seal: Semaan Engineering Solutions,LLC 1079 N.2051h Street,Elkhorn,NE 68022 Phone:402-289-1888 vilSEANAAN AWC1Nfi9UW 5MVr1OW LLC Structural Analysis Report Prepared for: US Cellular 8410 West Bryn Mawr Suite 700 Chicago, IL 60631 ATTN: Mr. Brian Maguire Structure : 120 ft Sabre Stealth Monopole Proposed Carrier : Verizon and Iowa Wireless Site ID : 760559 Site Location : West Lincoln, Ames, IA County : Story Date : February 18, 2014 Usage : 33.1% I hereby certify that this engineering document was prepared by me or under my direct personal supervision and that I am a duly licensed Professional Engineer under the laws of the State of Iowa. Signature ate Thomas L.Taylor License number 20140 My license renewal date is December 31,2015. Pages or sheets covered by this seal: Semaan Engineering Solutions,LLC 1079 N.205t'Street,Elkhorn,NE 68022 Phone:402-289-1888 February 18, 2014 Page 1 Introduction The purpose of this report is to summarize results of the structural analysis performed on the 80 ft steel Sabre Monopole with a 40 ft top mounted stealth mounting system located at West Lincoln, Ames,IA, Story County (site#760559). The tower was originally designed and manufactured by Sabre(Job No 04-09160,dated October 8,2003). Analysis The tower was analyzed using Semaan Engineering Solutions, Inc., Software. The analysis assumes that the tower is in good, undamaged, and non-corroded condition. The analysis was performed in conformance with ANSI/TIA-222 Rev G and local building codes for a basic wind speed of 90 mph no ice and 40 mph with 3/4" radial ice (3-second gust), Structure Classification 11, Exposure B. This is in conformance with the IBC 2009: Section 1609.1.1, Exception (5) and Section 3108. Basic Wind Speed: 90.0 mph Radial Ice: 40 mph w/0.75" ice Code: ANSIMA-222 Rev G Antenna Loads The following antenna loads were used in the tower analysis. Existina Antennas Elev. $ Qty Antennas Mount Coax in Carrier 115.0 3 800 6 Inside Stealth Canister (6)7/8 Bias-T US Cellular 3 AM-X-CW-18-65-OOT-RET 105.0 3 Bias-T Inside Stealth Canister (6)7/8 95.0 3 AM-X-CW-18-65-OOT-RET Inside Stealth Canister (6)7/8 US Cellular Future 3 Bias-T Proposed Antennas Elev. $ Antennas Mount Coax in Carrier 3 SBNH-1D6565C 6)7/8 85.0 3 TMA-T-DB7u21-1D-A Inside Stealth Canister (1)RET Verizon Cable 3 ETW200VS12UB (6) 1 5/8 75.0 Flush Mounted to Outside of (Outside) 3 W85-13-R02 Pole (1)RET Iowa Wireless Outside All transmission lines running outside of the pole are assumed strapped tightly to the pole shaft. All new access holes shall be reinforced with welded rims that are compatible with the pole and to be sized and supplied by pole manufacturer. February 18, 2014 Page 2 Results The existing monopole is structurally capable of supporting the existing and proposed antennas. The maximum structure usage is: 33.l%. Pole Reactions Original Design Current Analysis %Of Design Reactions Reactions Moment ft-kips) 438.00 504.12 85.3* Shear(kips) 7.30 7.68 77.9* (*) The percentage is factored by 1.35 per TIA-EIA Rev G The analysis reactions are less than the design reactions therefore no foundation modifications are required. Conclusion Based on the analysis results, the existing structure meets the requirements per the ANSIMA-222 Rev G standards for a basic wind speed of 90 mph no ice and 40 mph with 3/4" radial ice. If you have any questions or require additional information, please cal1402-289-1888. Standard Conditions All engineering services are performed on the basis that the information used is current and correct. This information may consist of,but is not necessary limited,to: -- Information supplied by the client regarding the structure itself, the antenna and feed line loading on the structure and its components,or other relevant information. -- Information from drawings in the possession of Semaan Engineering Solutions,or generated by field inspections or measurements of the structure. It is the responsibility of the client to ensure that the information provided to Semaan Engineering Solutions and used in the performance of our engineering services is correct and complete. In the absence of information to the contrary,we assume that all structures were constructed in accordance with the drawings and specifications and are in an un-corroded condition and have not deteriorated; and we, therefore, assume that their capacity has not significantly changed from the "as new" condition. All services will be performed to the codes specified by the client, and we do not imply to meet any other codes or requirements unless explicitly agreed in writing. If wind and ice loads or other relevant parameters are to be different from the minimum values recommended by the codes, the client shall specify the exact requirement. In the absence of information to the contrary, all work will be performed in accordance with the latest relevant revision of ANSI/EIA-222. All services are performed, results obtained, and recommendations made in accordance with generally accepted engineering principles and practices. Semaan Engineering Solutions is not responsible for the conclusions, opinions and recommendations made by others based on the information we supply. SPEMAAN ENGINEERING SOLlfT1ONS,LLC Job Information 1079 N 205m Street Pole : 760559 Code: ANSIITIA-222 Rev G Bkhorn,NE 68022 Description Phone:402-289-1888 Client: US Cellular-CH Struct Class : II Fax:402-289-1861 Location : West Lincoln,Ames,IA Shape : 16 Sides Exposure : B ©2007-2014byATCIPLLC. All rights reserved. Height: 119.75 (ft) Topo: 1 Base Elev(ft): 1.00 Taper: 0.12501,(in/ft) 119'-9" 115 0' Sections Properties Diameter(in) Overlap Steel Shaft Length Accross Flats Thick Joint Length Taper Grade Section (tt) Top Bottom (in) Type (in) (inHt) (ksi) 1 53.250 32.81 39.47 0.250 0.000 0.125011 65 2 30.750 30.00 33.84 0.250 Slip Joint 51.000 0.125011 65 40'-0' 3 40.000 30.00 30.00 0.188 Butt Joint 0.000 0.000000 65 3116`Thick (65 KSI) Discrete Appurtenance Attach Force Bev (ft) Bev (ft) Qty Description 115.000 115.000 3 Bias-T 115.000 115.000 3 80010736 105.000 105.000 3 Bias-T 105.000 105.000 3 AM-X-CW-18-65-00T-RET f` 95.000 95.000 3 Bias-T 95.000 95.000 3 AM-X-CW-18-65-00T-RET 75-G 85.000 85.000 3 TMA-T-DB7u21-1D-A 85.000 85.000 3 SBNH-1136565C 75.000 75.000 3 ETW200VS12UB 75.000 75.000 3 W85-13-R02 Linear Appurtenance 114°Thick Bev(ft) Exposed (65KS1, I19'-9 From To Description To Wind 0.000 75.000 1 5/8" Coax Yes 53'-3' 0.000 75.000 RET Cable Yes 0.000 85.000 7/8 Coax No 0.000 86.000 RET Cable No c- 0.000 95.000 7/8" Coax No 49-0 0.000 105.0 7/8" Coax No 0.000 115.0 7/8" Coax No Load Cases 1.21)+1.6W 90.00 mph with No Ice 0.9D+1.6W 90.00 mph with No Ice (Reduced DL) 53'-3' 1.21)+1.0Di+1.0Wi 50.00 mph with 0.75 in Radial Ice 1,4'Thick (65 KSI) Reactions Moment Shear Axial Load Case (kip-ft) (kip) (kip) 1.213+1.6W 504.12 7.68 15.34 0.91)+1.6W 501.46 7.68 11.50 1.213+1.01)i+1.0Wi 172.16 2.58 24.66