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HomeMy WebLinkAboutSDP200900037 Calculations 2009-06-30v~ ~~~~^ KURT M. GLOECKNER ST. ANNES - BELFIELD ENGINEERING/SURVEYING INC LOWER/MIDDLE SCHOOL 508 DALE AVENUE, SUITE A CMARLOTTVILLE- VA 22903 JOB #:07-029-00 BY:KMG @ 06/30/09 PHONE 804-971-159I FAX 804 2g3V0Mrsyylk RetainPRO(tm) Cpvrt 1989,90 ENERCALC CANTILEVERED RETAINING WALL DESIGN Pp 1 of 2 SOIL DATA --ADDED VERTICAL LOADS Allowable Bearino 1,500 psf Axial. DL on Stem 488 pif Active Lateral 33.0 psf Axial LL on Stem 0 plf Slope Active 45.0 psf Ecc. Toe side ±) 3.00 in Max. Active 0 psf Surcharge over Toe 0.0 psf Backfill Slope 3.0:1 Surcharge over Heel 0.0 psf horiz:vert,O=Level)Using Surcharge to resist Passive Lateral 300 pcf overturning @ Heel No Soil Density 110.0 pcf @ Toe No Soil Ht over To 12.0 in ADJACENT FOOTING ADDED LATERAL LOADS Vertical load 0 plf Lateral Load Acting Ecc. Toe side +) 0.00 in On Stem Above Soil 0.00 psf Footing Width perp) 0.00 ft Ftp. CL to Wall 0.00 ft And'i Lateral Load 0.0 pIf Ftp. Base Above/Below Soii dist. to start 0.00 ft At Wall Face [+1-] 0.00 ft dist. to end 0.00 ft Footing Type Spread WALL & FOOTING DATA - Retained Height 6.50 ft To Width 1.50 ft Wail Ht. above soil 0.00 ft Heel Width 4.00 ft Key Depth 0.00 in Total Width 5.50 ft Kay Width 0.00 in Thickness 24.00 in Key Dist. to To 0.000 ft SUMMARY ----------=--------===-- Pressure @ Toe 944 psf Factors of Safety: 1 Pressure @ Heel 734 psf Overturning 2.90 :1 Allowable Press.1 psi'Sliding 1.56 :1 t Eccentricity 1.38 in Resultant Outside Middle Third 1-Way Shear @ Toe 0.0 psi Allowable Shear 93.11 psi 1 1-Way Shear @ Heel =2.3 psi SLIDING CHECK -- ---- Ftq/Soil Friction 0~300 Lateral Pressure 1,882.1 # Soil @ To Not Used 0.00 in Passive Pressure = 1 # Factor of Safety 1.56 Friction 1,587.0 # Add'I Force Rep'd 0 # FOOTING DESIGN ------------- Toe--- --Heel--i'c 3,000 psi ACI 9.1 Pressure = 1,321 1,027 psf FY 60 psi Mu - Upward 1,456 4,863 ft-# Using SP @ Heel Yes Mu - Downward 646 10,309 ft-# Rebar Choices Mu - Design 810 5,445 ft-#Toe -- Heel One-Way Shear:4 @ 5.42 in 5.17 in vu 0.00 2.27 psi 5 @ 8.40 in 3.01 in vn=2(f'c)1/2*.85= 93.11 93.11 psi 6 @ 11.92 in 11.37 in 8ebar CL To Edge =3.50 2.50 in 7 @ 16.28 in 15.50 in Depth to steel 20.50 21.50 in 8 @ 21.41 in 20.41 in Ru = r|u/bd'`2 2.1 13.1 9 @ 27.10 in 25.84 in Min' Rebar Ratio = 0.0018 10 @ 34.42 in 32.82 in KuRT M. GLOECKNEk TITLE: ST. ANNES - BELFIELD ENGINEERING/SURVEYING INC.DESCR: LOWER/MIDDLE SCHOOL 508 DALE AVENUE, SUITE A CHARLOTTSVILLE VA 22903 JOB #07-029-00 8Y:KMG @06/38/09 PHONE 804-971-1591 FAX 804 29 RetainPRO(tm) Cpyrt 1989.90 ENERCALC STEM DESIGN ------------------ Factored values shown for concrete stems)Pq 2 of 2 Stem Designs Stem Construction Data At Various Heights Above Ftq. DESIGN HT. ABOVE FTG. 6.50 ft WALL TYPE ABOVE HT.Concrete Thickness nominal) 12.00 in Reber Size 4 Rebar Spacing 12.00 in Rebar Placed at Edge DESIGN DATA b/Fb + +a/Fa 0.041 Lateral Load @ Ht.0 r t MOMENT Allowable 9-048 ft-4 Actual 171 ft-4 K. uSHEARAllowable93.11 EM psi Actual 0.00 psi Embedment Length Req'd = 12.00 Wall Weight 150.0 psf Rebar Depth 10.25 in MASONRY DATA f'm 444:metto psi Fs psi Grouting Special Inspection n Es / Em Short Term Increase CONCRETE DATA f*c 3,{)00 psi Fy 60 psi SUMMARY OF FORCES & MOMENTS t- Overturning Moments Resisting Moments Origin of Force:ft ft-4 ft ft-4 Heel Active Press~ 2,031 3.17 6,430 Soil over Heel 2~145 4.00 B,580 To Active Press. 149 1.80 149 Soil over To 165 0.75 124 Sloped Soil @ Heel .=165 4.50 743 Adjacent Ftq. Load =0 0.00 0 0 0.00 0 Surcharge @ Heel 0 0.00 0 Surcharge @ Toe 0 0.00 0 0 0.00 0 Axial Load on Wall 122 488 1.75 854 Load @ Proj. Wall 0 0.00 0 Averaged Stem Wts. 0 0.00 0 Added Lateral Load =0 0.00 0 Footing Weight 1,650 2.75 4,537 Key Weight 0 0.00 0 Vert. Componant of =677 5.50 3,723 Active Press. TOTALS 1,882 6,404 4,613 18,561 Di from front edge of footing bottom not key) L 1 l't 9 7, ri t 15 tit 1 11 a ri r I S char Hdded Load h 0 f. 1 it :-') 1 013 1 5 . 5 Ntr X 1 1 uottto eERriEicATE No- L.. I 5E149 4 i -‘3 n'Av.syte H+.1~"Cunc v '@ 1 c. /~V 1 1 i i 8 i i i 8 " r i 1r_ 1 l C.. 70.m,...,.........il , i(ii _ k_...._.__________ _ ._ t:3, CE.RTIF1CATE No. L Y3 NA 4P Arm ll'`A Vs o At cit-4 7; t7. ?C.Li`--/..A" A 1-4-0 S ke7.5 — c) kir I r C,t•L Z 1.1 Ax5 P-VOVT)fL) tv cs.v t-Y A i\A(=:::(Alco T t-3 t t 75'1 A: NI:a itA A 41 FA C.,C_L'c- - r 1c; C. P r6tiit 37 Fr. S,01"t41 A2 z.00)( Z. 4_ cl MODIFIED RATIONAL METHOD (2 -YEAR STORM) SAINT ANNES - BELFIELD PROJECT:JOB # : 00- 000 -00 SWITCH FROM GRASS TO ARTIFICIAL TURF FIELD DESCRIPTION:SHEET 1 OF 1 2 -YEAR CRITICAL STORM DURATION C = developed condition runoff coefficient 0.4 A = drainage area, acres 1.607 a = 2 -year rainfall constant 106.02 b2 = 2 -year rainfall constant 15.51 2CA a (b - -t /4) t = post - developed time of concentration, min.5 T _b q = 2 -year allowable peak outflow, cfs 2.21 qo T i, = 2 -year critical storm duration, min j 14.14585556 L 2 -YEAR CRITICAL STORM INTENSITY a, = 2 -year rainfall constant 106.02 b, = 2 -year rainfall constant 15.51 a Td, = 2 -year critical storm duration, min 14.14585556 b +Td 1 2 -year critcal storm intensity, in. /hr.3.575010668 2 -YEAR PEAK INFLOW C = developed condition runoff coefficient 0.4 1, = 2 -year critical storm intensity, in./hr.3.575010668 A = drainage area, acres 1.607 Q.= CI A Q, = 2 -year peak inflow, cfs 2.298016858 2 -YEAR REQUIRED STORAGE VOLUME Q, = 2 -year peak inflow, cfs 2.298016858 T,y = 2 -year critical storm duration, min 14.14585556 t, = post- developed time of concentration, min.5 Q. t q T 3q t q = 2 - year allowable peak outflow, cfs 2.21 V = [017,4 bQ 4 2 4 V 2 -year required storage volume, ft 687.6759131 V2 = 2 -year required storage volume, ac.ft.0.015786867 NOTES MODIFIED RATIONAL METHOD (10 -YEAR STORM) SAINT ANNES - BELFIELD PROJECT:JOB # : 07- 029 -00 SWITCH FROM GRASS TO ARTIFICIAL TURF FIELD DESCRIPTION:SHEET 2 OF 2 10 -YEAR CRITICAL STORM DURATION C = developed condition runoff coefficient 0.4 A = drainage area, acres 1.607 a10 = 10 -year rainfall constant 161.6 b10 = 10 -year rainfall constant 18.73 2CA a () -t/4) t = post - developed time of concentration, min.5 T "b goio = 10 -year allowable peak outflow, cfs 2.86 qo Tdlo = 10 -year critical storm duration, min I 16.90373186 10 -YEAR CRITICAL STORM INTENSITY ado = 10 -year rainfall constant 161.6 b10 = 10 -year rainfall constant 18.73 T _ Q T = 10 -year critical storm duration, min 16.90373186 b ÷Td Ilo = 10 -year critcal storm intensity, in. /hr.I 4.535028793 10 -YEAR PEAK INFLOW C = developed condition runoff coefficient 0.4 llo = 10 -year critical storm intensity, in. /hr.4.535028793 A = drainage area, acres 1.607 Q .= CI .A Q10= 10 -year peak inflow, cfs 1 2.915116508 10 -YEAR REQUIRED STORAGE VOLUME Q,10 = 10 -year peak inflow, cfs 2.915116508 TdIo = 10 -year critical storm duration, min 16.90373186 t = post - developed time of concentration, min.5 Q t g T 3q r go10 = 10 -year allowable peak outflow, cfs 2.86 V = Q, T + 4 2 60 V 10 = 10 -year required storage volume, ft 1081.374412 Vlo = 10 -year required storage volume, ac.ft.0.024824941 NOTES Z p E :,{1 I .., N T Z o8Z i Ti is f.` u m 1 0 - r' ---------- \\: 1 . -. 17 Z , - i i I IS113 i Z m D C U r T c i;..1 z o u w ui Ui (» N V i w V, u1 U, N n 1 T 1 1 i I I II II i I 9! = , :.,', -. i ARKET-i UNITED IN SPORT1Ot9C.( `'; j I 111,` It1 L ) il ESTING EQUIPMENT, DATA, AND PROCEDURE it fl e° °° e°, °Hie ;° e e tt tiiiri I Hpt=.=•iiit.et ti th 11•' '1 : t1,1, 1 1 f 7.ti V, it,..Y, 1lil 2 e. 1t , t S j i 1 ...„ 1 111.t 1 Ar. 1 i 1 1I p 1 t - 11V, r..!.i 1 1 1 1M. i i 17: 1 Z.' f_..4-i V,IP.ti 1 14.4 ) A.0.)01¢-tA t ,!, ) 0i 1 wo 1 1 i a 4 ill g 4,4, f torODi 1 4 R iM51OS' 3 11 i1 0 1 4 j 6 A.1 CI........a)j2 ie 1 k3 4LI;0 1v, 2 i; 0 2 41 c l'' at W i`i;‘'.' ;f;:ril) Alt )014/ 1‘,.i ) is kidtikil I 1 i 3 1 4 4 r 4 i44 1 Z i 1 1 1 7.1 1 1 xei ., • 1 i.14 4V. 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Percolation 1 0 1.5"1 2 1 4.0"1 2.5" /min. = 150 - /hr. 3 2 6.5"1 4 3 9.5"1 5 4 12.0"l 6 5 15.0 1 7 6 18.25 1 8 7 19.0 1 9 8 20.75 1 10 9 22.25 1 11 10 23.75 1 12 11 25.0 1 13 12 26.0 1 1 "/1 min. = 60 " /hr. 14 13 27.25 1 15 14 28.25 1 16 15 29.25 1 17 16 30.25 1 18 20 33.0 4 19 27 34.0 7 20 38 35.0 11 1 - /11 min. = 5.45 " /hr. 21 58 36.0 20 1 - /20 min. = 3 " /hr. 1 1 V u Lii 1 11 t Lii 0 44 El 414 1 cc, 63 1 lit 0 se \lt ti co z \ riii\ 0 i Q Oi Ail ;i c) t t i in 1 2\ 7 - Q. 0 I1i11 l e / LQ 11 Q--:4 er: 1 r, W II o C WV 1 AI 1 0 0 1 Q LINE SHEE AO 3 LL!HLNE SHEE oAp 2 1 1;1 IV 16 50.00 PN,-, 7:÷Y Val 1 1 1 i,-,c)A\ ,cf_D, di 41 i d j sicqx/ r U =// 6 31.38 1 f