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Home My WebLink AboutRETROFIT ANALYSISPrepared For: verizon✓ SCANNED BY St. Lucie Coun3y 68837 - Adam's Ranch [REV. 11 RETROFIT ANALYSIS 300' Guyed Tower Site Address Prepared by: KimleylMorn Kimley-Horn 1920 Wekiva 21715 Orange Ave. Fort Pierce, FL 34945 St. Lucie County and Associates, Inc. Way West Palm Beach, FL 33411 (561) 845-0665 ®Kimley-Horn and Associates, Inc. EB0000696 Tower Pass: 700.6% * Foundation: Pass *Within Engineering Tolerance NNE\ \A �.\CENs�+„ 9p * No. 82192 * �� *AG STATE OF �� a OPY Stephan Mack, P.E. Florida P.E. 82192 April 18, 2017 Kimlep Horn Verizon Wireless 68837 - Adam's Ranch, 300' Guyed Tower Analysis TABLE OF CONTENTS Report.................................................................................................... 4 Pages SupportingData.......................................................................................... 5 Pages Tower Modification Drawings......................................................................... 3 pages am: Kimley»)Horn Verizon Wireless 68837 - Adam's Ranch, 300' Guyed Tower Analysis PROJECT: Retrofit analysis of 300' Guyed Tower for the addition of Verizon Wireless equipment. LOCATION: 21715 Orange Ave. Fort Pierce, FL, 34945 St. Lucie County CLIENT: Verizon Wireless 4700 Exchange Ct., Suite 100 Boca Raton, FL 33431 OVERVIEW Based upon the Structural Tower Analysis performed by Kimley-Horn and Associates, Inc. dated August 1, 2016, it was concluded that the tower superstructure did not have adequate capacity for the proposed loading specified by Verizon Wireless under TIA-222-G standard. At the request of Verizon Wireless, Kimley-Horn and Associates, Inc. has conducted a retrofit design analysis in order for the tower superstructure to withstand the existing and proposed loading. Refer to Tower Modification Drawings prepared by Kimley-Hom and Associates, Inc. for modification details (See Sheets 1 — 3, Project # 044048141) PURPOSE The purpose of this retrofit analysis is to reinforce the failing tower superstructure in order for it to have sufficient strength for the existing and proposed loading. Refer to the following section for details on existing/reserved and proposed loading. EXISTING / PROPOSED TOWER MOUNTED EQUIPMENT From the Structural Tower Analysis by Kimley-Horn and Associates, Inc. dated August 1, 2016, the following tower mounted equipment information was determined to be the final loading. Pro posed Appurtenance.and Feedline Information Carrier Elev.ff Appurtenance Feedhnes Mount Type 6 X7C AP-665-VR0 Verizon Wireless 280 (3) VFA12- 6 DBC-7CAP RRU 6 Smart Bias T's RemovalofAppurtenance-and Feedline Information Verizon Wireless 280 (6) BSA-185090/12 2 (3) QT-SFIO- 3-72 I W-VW�1111#`i Kimley»)Horn Verizon Wireless 68837 - Adam's Ranch, 300' Guyed Tower Analysis t)d in Reserved AEpurtenance and Feediine Information (1) 3/4" Unknown 300 Lighting Conduit (12) 1-5/8" Verizon Wireless 280 (3) X7-665-4 Coax Cables Unknown 118 1 4' w/Radome 1 EW63 Unknown 110 1 UHX6-59/I 1 EW52 ANALYSIS The following table displays the failing sections from the Structural Tower Analysis by Kimley- Horn and Associates. Inc. dated Aueust 1. 2016: Section Elevation (ft. AGL) Component Type Percent Capacity Used T9 140-120 Diagonal Bolt 112.1 T11 100-80 Diagonal Bolt 109.6 T12 80-60 Diagonal Bolt 100.4* *Within Engineering Tolerance Bolts The table below displays the failing bolts and proposed modifications to accommodate the proposed loading. Section Elevation Failure Mode Existing Member Proposed (ft. AGL) Modification T9 140-120 Member Bearin lil P1.Sx0.028 P1.5x0.12 TI1 100-80 Member Bearin [ll P1.5x0.028 No Modification[Fl [11 Member bearing failure is a failure of the thickness of the member the bolt is connecting through; therefore, the connecting member must be replaced with a thicker member. [2]After modifying section T9, the stress on TII was reduced and no longer required modifications. After modifying the above sections, the following additional sections required modifications. Section Elevation (ft. AGL) Component T5 220-200 Diagonal Bolt T6 200-180 Leg , KimlepMorn Legs Verizon Wireless 68837 - Adam's Ranch, 300' Guyed Tower Analysis To strengthen the failing pipe legs, A53 Grade B steel half -pipes are proposed to reinforce them. However, due to half -pipes having a yield strength of 35 ksi and not 50 ksi (legs), to size the half - pipes, an area increase is required by a ratio of 50/35 = 1.43. The table below displays the selected half -pipes used to support the failing legs. Refer to the Supporting Data section for the reinforced member details. Sects Qetatlm I Fio,S`g Hemmer I Ex6fuzg Area imal45 I Add fionA StM Frcpasedamber CAddir%UR pac RegWmd MemterAma TO 200.189 F1.W--W-Z18 1 1.48 min I lzux1.43 I U-Z(sqn P- 3X-Si11UNG=1A2 eP' Bolts The table below displays the failing bolts andproposed modifications to accommodate the proposed loading. Section Elevation Failure Mode Existing Member Proposed ft. AGL Modification TS 1 220-200 1 Member Bearing['] I P1.5x0.058 I P1.5x0.12 [1] Member bearing failure is a failure of the thickness of the member the bolt is connecting through; therefore, the connecting member must be replaced with a thicker member. FOUNDATION ANALYSIS Based upon an analysis, the foundation was found to have adequate capacity for the existing and proposed loading. SUMMARY OF RESULTS / CONCLUSIONS Based upon the information and assumptions discussed above, our retrofit analysis shows that the listed proposed and reinforced members will provide the tower superstructure with sufficient capacity for the proposed antenna modifications specified by Verizon Wireless under the TIA-222- G standard. In addition, the foundation has the necessary capacity to resist the tower base reactions. Kimley Morn Verizon Wireless 68837 - Adam's Ranch, 300' Guyed Tower Analysis STATEMENT OF LIMITATION Kimley-Horn makes no warranties, expressed or implied in connection with this report and disclaims any liability arising from original design, material, fabrication, and erection deficiencies or the condition of the tower. The following assumptions were made in the absence of the information described in the previous section to complete the tower analysis. • The tower assembly drawing was assumed to represent as -built conditions. Kimley-Horn (KHA) was not present for general observations during construction of the tower, and, therefore, cannot verify that the tower and foundations were installed in general conformance with their original design. • Information on the tower and foundation drawings that could not be verified by KHA personnel is assumed to be correct. • KHA has assumed proper tower construction and maintenance in accordance with the applicable Building Code and the applicable ANSI TIA/EIA guidelines in affect at the time of construction. • KHA has assumed proper alignment and plumbness, correct bolt tightness, no significant damage or deterioration to any component, and the use of steel which meets the specified yield strength of the original design. No testing or inspection was done to confirm this assumption and it shall remain the responsibility of the owner of the tower to ensure that it is in good condition. In addition, we have assumed that the minimum clearances and edge distances required by AISC have been met for each connection. • KHA has not compared limitations for antenna twist, tilt, roll, or lateral displacement to actual displacements computed under service conditions. Therefore, we do not make any judgment regarding adequacy of this tower for these factors. • Tower data and antenna location and type used in this analysis are based on and are as accurate as the data fiunished. This analysis is valid only for the existing and proposed loading described in this letter. The tower must be reanalyzed if equipment mounted on the structure is different than the loading stated in the report. If any of these assumptions are not valid or have been made in error, this analysis should not be considered accurate, and KHA should be allowed to review any new information to determine its effect on the adequacy of the tower. Kimley»)Horn Verizon Wireless 68837 - Adam's Ranch, 300' Guyed Tower Analysis SUPPORTING DATA < dd 'a F i 0 a N_ N gNg R M 4 a a e Q 6 6 M 6 a a s C & F w � n a i E � a` H � 9N ,ry F F m m U U U m O V Ua oc® -9 .3 n a ma 'qa i m F tl 2W.00 240_0 R 220.0 ft 2MA ft, M)0ftft 1` +N DESIGNED APPURTENANCE LOADING TYPE ELEVATION TYPE ELEVATION VFA1aRRUSec Frama(Vzw) 2W fOCDAP- VROw/m00mpfpa (*W) 280 VFA12-RRUSealarFmma MW) 280 VFA12-RRUS .rFramo(VxW) 280 DB07CAPDiplezei(WM 260 VI 541w/mount pipe(VZM MD DBG7CAPDipl.(VzW) 260 XI-fi054 w/mount PiPa lVz'M 20D D0 7CAP Dipluw(ViM M X7-eGE M1w/mauntPPa lViw) 2H11 D0 7CAP dpluw(Vz" 2811 X7CCAP46SVR0 w/mount plea (VZq 2W DB MAP Dipfuer NM No 0e 7CAP Diple (VzM 2E0 X7CDAP�VROw/mauntpfpe (VztM 280 SmMBias T(VzN) 2W Smad U.T(V=W) 280 X7CDAPE6SVR0w/mwnl Pipe (VZ" 280 I S..riU.T(Vz'M. 2W S MR.TMM 280 - X7COAPE6SVROwfmw pip MM 280 SmM DIaa T Mw) 20 X7CDAPE W0Wmmmtpipe IMI 280 6mM BfaaTMw) 280 Md.,V lRaOorna 118 UwcsSVL 110 SYMBOL LIST 120_0R "@7?1 o7 0'tI MARK 1 SIZE MARK SIZE A I P2.375X0218• P 3X441R Heir -Pipe I C I LAX4XV4 B I NA I 0 15@1 \\ MATERIAL STRENGTH 1oo.bR GRADE Fy Fu _ GRADE_I Fy Fu A81&50 50 kU 70 ksi AS}B-02 42 ks1 63 (wi \ \TOWER DESIGN NOTES 1. Tower is located In Saint Lucie County, Florida. man - 7n 2. Tower designed for Exposure C to the TLA-222-G Standard. FNSS�z'TOsr 4. Tower o Deflections are designed for a 118 m eh basic inid In accordance with the TIA-222-G Standard. 8 =70ti 5. Tower Structure Class IL 6. Topographic Category 1 with Crest Hetght\of 0.00 it Bb_on 7. Weld together tower sections have flange connections. 8. Connections use galvanized A325 bolts, nuts and locking devices. Installation per �TIA/EIA-222 and AISC Specifications. \ 9. Tower members am "hot dipped' galvanized in accordance with ASTM A123 and ASTM AStandards. Welds \\ <°_°n 10. Welds are fabricated with ER-70S-6 electrodes. 11. TOWER RATING: 100.6%_ 20.Oft ' L_ f ® Gf 46486N 5.0 fl 2502@ B1870m \�6 I M (AAA R=240.00 R 25661bn(Taryue) ALL R FACTIONS ARE FACTORED Kimiey-IlornandAssociates,Inc. 6`300'Guyed Tower 1920 Wekiva Way ;;2mam's Ranch West Palm Beach, FL 33411 °"P1tl` Verizon Wireless °'°"'"TMAsheila. reble App'e: canwlSm Engineers Phone: (561) 845-0665 e : TIA-222-G MB' 10/03/16 —B NT! Feed Line Distribution Chart 5' . 300' RowM Flat App In Face Am W Few TmoL g F. c 0 d Lu 5o00o Face A 250.00 Mw----- 240.00 22e.00 209.P5 _____ -----------' ------------_------------- _ 200.00 ----- ------------ ------------------------------- 10000 _____ ____________ _______________________________ iw.w ------------ ___________________ J O 140.00 a 120.00 _____ __________-- ___-__-_-_____--______________. im-M _____ ____________ ______________________ ------ M-M _00 ..... ..................... ......... .. .... 40.00 Mw 5.00 _____ I ____________ I ___________--------- ___ _____ Face B Face C 1920 Wekiva Way West Palm Beach, FL 33411 Fng"ucers Phone: (561) 845-0665 Feed Line Plan Rand Rd Appin Fars App Out Facer (12) LDF7-BOA (1-51e Kimle.pHorn and Associates, Inc. -"' 300' Gu ed Tower 1920 Wekiva Way F10-Adam's Ranch West Palm Beach, FL 33411 F Verizon Winafe Fre'v Phone: (561) 845-0885 c w TIA-222-G Guy Tensions and Tower Reactions TIA-222-G -118 mph Exposure C 26C Maximum Values Anchor'C' 24O ft Azimuth 240 deg Elev 0 ft Plane throuoh centroid of tower Kindey-Horn and Associates, Inc. 1920 Weklva Way West Palm Beach, FL 33411 E-dmn Phone: (561) 845-0665 2177 lb �N 442471b ELEVATION Kimley>>> Horn Verizon Wireless Adam's Ranch, 300' Guyed Tower Analysis Existing P2.375x0.218 (ASTM A572-50; FY = 50 ksi) from elevation 180' to 2001 AGL. `4e,.cs i Dimensio0s ! US Name I I PZ37EA21B � jrykk� � SlNeme o'le P2375x0.218 Diameter Wall Thickness Z375 in 0218 in _pmpel6es — -- A,, 1.477258,55 ui 2 b, 0.86792134 in'4 v 0:7665 in Sz ,0.7308B113 in"3 zx 1.01773089 ie3 I ' SFx 297 J 1.73584268 in'4 I R0% KI Composite Member; Reinforced with a 3 X-Strong Half -Pipe (ASTM A53 Gr. B; Fy = 35 ksi) (Superposition) — -0hrsnalona - usifacm 137s031B�P3%SfRM�It-PaVI y. - WPM Siffu P237 10.P3%S1BBelf-1+'y `�f<rcd 0a6jd M75 h X 0 YACp 2375 h ...X Vrma Pro) 0 ti hrenNer 0.491 I in � waeaka -29BOB tv 11 Oana3y 490 xf Area 24875 t h,2 OeOa ] Cvi 0 - h'fi k OP8f9 m ti•4 b 0R0792134 W4 J 1.73W49 B h'4 9ft) 0.7J093113 ti13 Sy RoP) • 0.MMII3 h•3 &(WI) 0]3088113 h9 SY(5>U 0..MN113 h•3, Qitael69 a r0un0 aajeel fOr Whm a[ 0.7ES5 h ry , O'7f65 h I QPerformstreaa merkfcrtnh type . 5f)' 297 SPa 297 ' *Proposed half -pipe area reduced by a ratio of 35150 to account for the differences in yield strengths. 1 Kimley>>)Horn Verizon Wireless 68837 - Adam's Ranch, 300' Guyed Tower Analysis fp: N A TOWER MODIFICATION DRAWINGS �Y r r � S� r r� • 4.�:rr r�� 9- Y S