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HomeMy WebLinkAboutPacket - Monopole Structural Analysis THOSON ENGINEERING Tower Services MONOPOLE STRUCTURAL ANALYSIS TOWER LOCATION: HOME PLACE (INDIANAPOLIS, IN) CLIENT: MAGTECH SERVICES, INC. CUSTOMER JOB NO: 06-98026 TE PROJECT NO: 21 IMP \` ��►►utun��� ,;i Scete;:e T E1‘.o. 19400105 I*7-1 ANALYSIS PERFORMED BY: Brian Thompson,P.E. STATE OF ;'ThAN P`.. `\`� DATE: 1/12/99 biz 1947 Cheyenne Dnve /Evansville, IN 47715 / (812) 479-5623 (voice/fax) ANALYSIS PARAMETERS The following structure has been analyzed in accordance with ANSI/EIAVTIA-222-F. DESIGN WINDSPEED 75 mph 0" ice, mph 1/2" ice STEEL HEIGHT(1 t) 1100 ET(EXTENDED FROM 80') POLE DIAMETER (IN) 154" BASE x 30"TOP MANUFACTURER j PrROD DATE OF MANUFACTURE ; 1997 LOCATION ;INDIANAPOLIS, IN (MARION CO.) ANTENNA LOADING ANTENNA ELEVATION I FEEDLINEel (9)ALLGON 7125(RELOCATED) 100 N/A (6)CELLWAVE AP 199014(NEW) 80 1-1/4 The above listed antennas are mounted on low profile platforms. Manufacturer and model numbers for the antennas at 100' were not available. The model specified was determined from photographs. MATERIALS MEMBER F.(KSI) POLE SHAFT 42 FLANGE 36 ANCHOR BOLTS 58 1947 Cheyenne Drive / Evansville, IN 47715 / (812) 479-5623 (voice/fax) Page RESULT SUMMARY: POLE SHAFT DATA SHAFT LOADING: SECTION DIA (IN) % OF CAPACITY SECTION-E (BASE) 54 37 SECTION-D 48 33 SECTION-C 42 27 SECTION-B 36 20 SECTION -A(TOP) 30(new) 11 This tower is designed to be extended to 120'. The wall thickness of the new 30" diameter section should be per the manufacturers original specification. 3/8" has been used for this analysis. FOUNDATION The base foundation is loaded below rated capacity. CONCLUSIONS: This tower meets the requirements specified in ANSI/EIA/TIA-222-F. RECOMMENDATIONS: No modifications are required. 1947 Cheyenne Drive / Evansville, IN 47715 / (812) 479-5623 (void/fax) Page 3 THOMPSON ENGINEERING MONOIAOL E DESIGN USING EIA/TIA 222.1995&ASD . 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FORS AT MQIER MSE f DATE: 1/12/99 ...I) I a r6'REff LOB �T LOCATION: INDIANAPOLIS, IN �'� FILE: }1 C v `�' ns MASTER FILE: SSFOUN.1CD 4 I( I b (d dirt ,n:,^, page) ` INPUT DATA: pc = .(j CONCRETE DENSr.Y (KIP/FT"3) p 5 _ .( SOIL DENSITY (KIP/FT"3) kA/t = 7 FACE r11u1'H (FT) hb.' 15SASE THICKNESS (FT) h s = 7 DEPT OF SOIL OVER FOUNDATION PAD (Fr) D = 3.4 PIER DIAMETER (FT) hp = h� -6 PIER HEIGHT ((F^) hp =F3 F h = t2.9 HORIZONTAL FORCE AT TOWER SASE (KIP) (FROM MAST PROGRAM) F v-= 28.3 VERTICAL FORCE AT TOWER SASE (KIP) (FRCH MAST ?RCGRAM) M t =832 MOMENT Al' TCWER BASE (KIP-FT) (FRO[ MAST PROGRAM) P b.allow 2 ALLOWABLE BEARING PRESSURE (KSF} - 4.= 10 DEGREES, INTERNAL ANGLE OF FRICT ON OUTPUT DATA: W1• 17 Dp b- - + + 2 b=(5.483 cosi30. 180) MINIMUM BASE WIDTH (FT) REDEFINE SASE WIDTH AS NECESSARY: b = 24.5 d _ b d=24.5 BASE DEPTH (FT) BEARING: A = b•d A =600.2.5 FT"2 S _ b•d` S =2.451.103 SECTION MODULUS (FT"3) 6 OF PAD D We = %b•d•hb .hp3i.pc Wc =278207 CONCRETE i1T (KIP) D ` Ws.= lb•d•h -a •hs31•ps Ws=401.109 1` SOIL +1T (KIP) W st = F v W st=28.3 WEIGHT OF STRUCTURE AND. APPURTENANCES (KIP) pdw = Wc .-Ws ' Wst Pdw=707.616 DEAD WEIGHT OF CONCRETE SOIL, AND STRUCTURE (KIP) Mc - MC-Fhilhb "hp) Mc =1.032-10' MCMENT AT SASE OF PAD (KIP—FT) = pdw M°p Ps =1.6 (KSF) ?. S MUST 3E LESS THAN ALLOWABLE BEARING PRESSURE P b.allow =2 KSF OVERTURNING: it V end._ .5•h s. h tangy¢ 1)-b Vend=I05.84 :T"3 1801; R +! b V side h s h s tan l)18011 = V side=105.84 Wend .= PsVend Wend=10.584 KIPS W side - P s V side W side=10584 KIPS • fb j i s � *b,jW Mt = Wc `Ws-Wst) ;) -{Wend'ihs�(*180 71; side 4 l 1 Mt=8.876.103 ME RESISTING MOMENT FS _ — FS =8.601 FACTOR OF SAFETY - MUST BE Mc GREATER THAN L.S D p' VOLUMES: b.d.h b - , •h p'-3 V V c=68.693 tD^3 c .7 VOLUME •)F CONCRETE REQ'D. b•d hs- `s d -hs1-3 V = V s =148.559 YD^3 ,7 VOLUME OF SOIL OVERBURDEN REQ'D. _. .' •'°�'`rw...^p4L-„r" s t ! t:,, .......... `-e 0 �i�.•Y � ""t. -...s-1. r l� r:44.4Z--a'+'z„i fai ,Jf 3i+ r ,".. �!4•7. .r .i..O �,7 . ,S."i�.S.1tir t•-•:,,.• ..:7A •. ter, /•vw Aa "� �' . . a.... ,jtt,m ,_..p'r--Fa"f�rtt:.r; G":a ^ ..tt.}:a „ 0-:.rrt •�.+c� r :e f✓}- 1-�.. a y � r ,r'r F t-a�o U�.3'r� r1li .✓ 'C7C T a ^rs r r Y / �•,1 z. um" 4'''.. :fit, .v^ xr T 1 a i.4*-� yp dr ",+ - a�f}.,.,.���,y'r"' f-:t+cirA" . 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