retaining wall design to bs 81101997, bs 80021994. bs 80041986 etc

DATAOPERATING INSTRUCTIONSProjectSpreadsheets to BS 8110etcREINFORCED CONCRETE COUNCILENTER DATA IN BLUE CELLS ONLY.ClientAdvisory GroupMade byDatePageRED MESSAGES INDICATE ENTRY ERRORS.LocationGrid line 1rc36490.0101RETAINING WALL design to BS 8110:1997, BS 8002:1994. BS 8004:1986 etc.CheckedRevisionJob NoOriginated from 'RCC62.xls' on CD 1999 BCA for RCCchg-R68IDEALISED STRUCTURE and FORCE DIAGRAMSDESIGN STATUS:VALIDWARNING :Passive pressure shouldonly be considered if itcan be guaranteed thatthere will be no futureexcavation in front ofthe wall.DIMENSIONS (mm)H =3200B =2750Tw =250Hw =100BI =1000Tb =400Hp =200BN =0TN =0Hn =0MATERIAL PROPERTIESfcu =35N/mmgm =1.5concretefy =460N/mmgm =1.05steelcover to tension steel =50mmMax allowable design surface crack width (W) =0.3mmConcrete density =24kN/mSOIL PROPERTIESWall GeometryDesign angle of int'l friction of retained mat'l () =30degreeDesign cohesion of retained mat'l (C ) =0kN/m(Only granular backfil considered, "C" = zero)Density of retained mat'l (q ) =20kN/mSubmerged Density of retained mat'l (qs ) =13.33kN/m[default=2/3*q (only apply when Hw >0) ] =13.33Design angle of int'l friction of base mat'l (b) =20degreeASSUMPTIONSDesign cohesion of base material (Cb ) =10kN/ma) Wall friction is zeroDensity of base material (qb ) =10kN/mb) Minimum active earth pressure = 0.25qHAllowable gross ground bearing pressure (GBP) =200kN/mc) Granular backfilld)Does not include check of rotational slide/slope failureLOADINGSSurcharge load -- live (SQK) =10kN/me)Does not include effect of seepage of groundSurcharge load -- dead (SGK) =10water beneath the wall.Line load -- live (LQK) =15kN/mf)Does not include deflection check of wall due to200= HpLine load -- dead (LGK) =20kN/mlateral earth pressuresDistance of line load from wall (X) =1000mmh) Design not intended for walls over 3.0 m high34.121.07LATERAL FORCES (unfactored)Ka =0.33[ default ka = (1-SIN )/(1+SIN ) ] =0.33Kp =2.04[ default kp = (1+SIN b)/(1-SIN b) ] =2.04Kpc =2.86[ default kpc = 2kp0.5 ] =2.86Kac =1.15[ 2ka0.5 ]ForceLever armMoment about TOEgfFultMult(kN)(m)(kNm)(kN)(kNm)PE =34.12LE =1.06736.411.4047.7750.97PS(GK) =10.67LS =1.6017.071.4014.9323.89PS(QK) =10.67LS =1.6017.071.6017.0727.31PL(GK) =6.67LL =2.3615.741.409.3322.03PL(QK) =5.00LL =2.3611.801.608.0018.89PW =0.05LW =0.030.001.400.070.00REINFORCEMENT DENSITYTotal67.1798.0997.17143.10169.5 kg/mPP =-6.12(LP-HN) =0.10-0.601.00-6.12-0.60

Print SheetPrint ALL Output

DATA0275040040032003200400400000000

STABILITYOPERATING INSTRUCTIONSProjectSpreadsheets to BS 8110etcREINFORCED CONCRETE COUNCILENTER DATA IN BLUE CELLS ONLY.ClientAdvisory GroupMade byDatePageRED MESSAGES INDICATE ENTRY ERRORS.LocationGrid line 1rc36490.0102RETAINING WALL design to BS 8110:1997, BS 8002:1994. BS 8004:1986 etc.CheckedRevisionJob NoOriginated from 'RCC62.xls' on CD 1999 BCA for RCCchg-R68EXTERNAL STABILITYSTABILITY CHECKS :OKokOVERTURNING about TOEF.O.S =1.50(using overall factor of safety instead of partial safety factor)LOADING OPTIONOverturningLateral FORCE (kN)Lever arm (m)Moment (kNm)(select critical load combination)MomentsPE =34.12LE =1.0736.40EARTHOPTION FACTORSPS(GK) =10.67LS =1.6017.071.00PS(QK) =10.67LS =1.6017.071.00PL(GK) =6.67LL =2.3615.741.00PL(QK) =5.00LL =2.3611.801.00PW =0.05LW =0.030.001.00 P =67.17Pp =-6.12(LP-HN) =0.10-0.60Warning:Under some conditions,surcharge & line loads may have stabilising effects on the structure, and it is recommended that stability checks should also be carried out without these loads. Mo =97.48RestoringVertical FORCE (kN)Lever arm (m)Moment (kNm)MomentsWall =16.801.1318.90Base =26.401.3836.30Nib =0.000.000.00Earth =84.002.00168.00Water =0.002.000.00Surcharge =30.002.0060.00Line load =35.002.2578.75 V =192.20 Mr =361.95Factor of Safety, Mr / Mo =3.71> 1.50OK1SLIDING(using overall factor of safety instead of partial safety factor)F.O.S =1.500.90.8Sum of LATERAL FORCES, P =67.17kN0.70.6PASSIVE FORCE, Pp x Reduction factor (1) =-6.12kNRed'n factor for passive force =1.000.5BASE FRICTION ( V TANb + B Cb ) =-97.46kN0.4Sum of FORCES RESISTING SLIDING, Pr =-103.58kN0.30.2Factor of Safety, Pr / P =1.54> 1.50OK0.11GROUND BEARING FAILURETaking moments about centre of base (anticlockwise "+") :1Vertical FORCES (kN)Lever arm (m)Moment (kNm)Wall =16.800.254.20Base =26.400.000.00Nib =0.001.380.00Earth =84.00-0.63-52.50Water =0.00-0.630.00Surcharge=30.00-0.63-18.75Line load =35.00-0.88-30.63 V =192.20 Mv =-97.68Moment due to LATERAL FORCES, Mo =97.48kNmResultant Moment, M = Mv + Mo =-0.20kNmEccentricity from base centre, M / V =-0.00mTherefore, MAXIMUM Gross Bearing Pressure (GRP) =70kN/m< 200OK

STABILITY69.733905769269.740185902169.746466034969.752746167869.759026300769.765306433569.771586566469.777866699369.784146832169.79042696569.796707097969.802987230769.809267363669.815547496569.821827629369.828107762269.834387895169.84066802869.846948160869.853228293769.859508426669.865788559469.872068692369.878348825269.88462895869.890909090969.897189223869.903469356669.909749489569.916029622469.922309755369.928589888169.93487002169.941150153969.947430286769.953710419669.959990552569.966270685369.972550818269.978830951169.985111083969.991391216869.997671349770.003951482670.010231615470.016511748370.022791881270.02907201470.035352146970.041632279870.0479124126

&APage &PBEARING PRESSURE (KN/m)

DESIGNOPERATING INSTRUCTIONSProjectSpreadsheets to BS 8110etcREINFORCED CONCRETE COUNCILENTER DATA IN BLUE CELLS ONLY.ClientAdvisory GroupMade byDatePageRED MESSAGES INDICATE ENTRY ERRORS.LocationGrid line 1rc36490.0103RETAINING WALL design to BS 8110:1997, BS 8002:1994. BS 8004:1986 etc.CheckedRevisionJob NoOriginated from 'RCC62.xls' on CD 1999 BCA for RCCchg-R68STRUCTURAL DESIGNS (ultimate)(Ka*q*((H-Tb)/1000)^2/2-(Ka*(q-QS)*((Hw-Tb)/1000)^2/2-COH*Ka*(H-Tb)))DESIGN CHECKS :OKokIF(Hw>Tb,(Ka*q*((H-Tb)/1000)^3/6-(Ka*(q-QS)*((Hw-Tb)/1000)^3/6-COH*Ka*(H-Tb)^2/2))/(Ka*q*((H-Tb)/1000)^2/2-(Ka*(q-QS)*((Hw-Tb)/1000)^2/2-COH*Ka*(H-Tb))),(H-Tb)/1000/3)WALL ( per metre length )ForceLever armMomentgfV ultM ult(kN)(m)(kNm)(kN)(kNm)EARTH26.030.9324.301.436.4534.02SURCHARGE(GK)9.331.4013.071.413.0718.29SURCHARGE(QK)9.331.4013.071.614.9320.91LINE LOAD(GK)6.671.9613.071.49.3318.30LINE LOAD(QK)5.001.969.801.68.0015.69WATER0.450.000.001.40.630.00Total56.8273.3182.41107.21BS8110referenceMAIN REINFORCEMENT :Min. As =325mm2Table 3.25f =16mmcentres =125mm< 220OK3.12.11.2.7(b)Asprov =1608mm2> 325OKMOMENT of RESISTANCE :d =192mmz =169.46mm03.4.4.4As' =0mm2x =50.0835707178xmax =96Mres =119.42kNm> 107.21OKz =169.462393177Fcmax =1350.72Mr =119.4160542604Fs =704.67584SHEAR RESISTANCE:As' =-1474.6660173913100 As/bd =0.84%Mr' =104.6581597457vc =0.80N/mm2Table 3.8Vres =153.74kN> 82.41OK3.5.5.2Ultimate Bending Moment DiagramCHECK CRACK WIDTH IN ACCORDANCE WITH BS8007 :X =75.21mmAcr =77.27mmem =0.0016364718BS8007W =0.29mm< 0.30OKApp. B.2REINFORCEMENT SUMMARY for WALLTypefCentresAsMin. Asmmmmmm2mm2VERTICAL EXT. FACET10200393325OKVERTICAL INT. FACET161251608325OKTRANSVERSET10200393325OKProjectSpreadsheets to BS 8110etcREINFORCED CONCRETE COUNCILClientAdvisory GroupMade byDatePageLocationGrid line 1rc36490.0104RETAINING WALL design to BS 8110:1997, BS 8002:1994. BS 8004:1986 etc.CheckedRevisionJob NoOriginated from 'RCC62.xls' on CD 1999 BCA for RCCchg-R68OUTER BASE ( per metre length )BS8110gf =1.46(default = ult mt / non-factored mt. ) =1.46reference88.1855413232V ult =86.79kN44.0927706616M ult =53.64kNm(TENSION - BOTTOM FACE)BOTTOM REINFORCEMENT :Min. As =520mm2Table 3.25f =12mmcentres =200mm< 762OK3.12.11.2.7(b)Asprov =565mm2> 520OKMOMENT of RESISTANCE :d =344mmx =17.6075053305xmax =172z =326.80mm3.4.4.4z =326.8Fcmax =2420.04As' =0mm20Mr =80.96064768Fs =247.7376Mres =80.96kNm> 53.64OKAs' =-4958.5163478261Mr' =64.6187914518SHEAR RESISTANCE:100 As/bd =0.16%vc =0.40N/mm2Table 3.8Vres =138.35kN> 86.79OK3.5.5.2CHECK CRACK WIDTH IN ACCORDANCE WITH BS8007 :X =68.49mmem =-0.0007622661BS8007Acr =108.61mmW =-0.18mm< 0.30OKApp. B.2INNER BASE ( per metre length )V ult =81.20kNM ult =89.46kNm(TENSION - TOP FACE)110.2319266541TOP REINFORCEMENT :Min. As =520mm2Table 3.25f =16mmcentres =150mm< 766OK3.12.11.2.7(b)Asprov =1340mm2> 520OKMOMENT RESISTANCE :d =342mmx =41.7363089315xmax =171z =323.22mm3.4.4.4z =323.2186609808Fcmax =2405.97As' =0mm2Mr =189.8036511919Fs =587.2298666667Mres =189.80kNm> 89.46OKAs' =-4151.4720434783Mr' =154.4662580997SHEAR RESISTANCE:100 As/bd =0.39%0vc =0.54N/mm2Table 3.8Vres =184.02kN> 81.20OK3.5.5.2CHECK CRACK WIDTH wrt BS8007 :(Temperature and shrinkage effects not included)X =99.03mmem =0.0002216404BS8007Acr =86.81mmW =0.05mm< 0.30OKApp. B.2REINFORCEMENT SUMMARY for BASETypefCentersAsMin. Asmmmmmm2mm2TOP (DESIGN)T161501340520OKBOTTOM (DESIGN)T12200565520OKTRANSVERSET12200565520OK

Print SheetPS(QK)PL(GK)PL(QK)PS(GK)PW

DESIGN00.0229972890.0919891560.2069756010.36795662390.57493222490.82790240391.12686716081.47182649571.86278040872.29972889962.78267196853.31160961543.88654184034.50746864325.18994815196.87352803288.603102491610.378671528512.200235143314.067793336115.981346106917.940893455819.946435382621.997971887324.095502970126.239028630928.471208353530.924114512733.454274768136.063328197738.752913879641.524670891944.380238312547.321255219450.349360690853.466193804756.67339363959.972599271863.365449781166.853584245170.438641741674.122261348877.906082144681.791743207185.780883614489.875142444494.076158775298.3855716849102.8050202514107.3361435528

&APage &P< base WALL (m) top >MOMENT (KNm)

WEIGHTProjectSpreadsheets to BS 8110etcREINFORCED CONCRETE COUNCILClientAdvisory GroupMade byDatePageLocationGrid line 1rc36490.0105RETAINING WALL design to BS 8110:1997, BS 8002:1994. BS 8004:1986 etc.CheckedRevisionJob NoOriginated from 'RCC62.xls' on CD 1999 BCA for RCCchg-R68APPROXIMATE WEIGHT OF REINFORCEMENTNo.TypeDiaLengthUnit WtWeightWALLVERTICAL - External face6T1028800.61710.65VERTICAL - Internal face9T1629281.57841.59TRANSVERSE (Ext.& Int.)30T1010000.61718.50BASETOP (MAIN)7T1628781.57831.80BOTTOM (MAIN)6T1228460.88815.16TRANSVERSE ( T & B )28T1210000.88824.86WALL STARTERS (Ext.)6T1011250.6174.16WALL STARTERS (Int.)9T1613651.57819.39NIB(assume same reinforcement as wall)INTERNAL FACE (MAIN)6T10800.6170.30EXTERNAL FACE (MAIN)9T161281.5781.82TRANSVERSE (EXT.+ INT.)2T1010000.6171.23SUMMARYApprox total reinforcement per metre length of wall (kg)169.5

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DiagramsProjectSpreadsheets to BS 8110etcLocationGrid line 1DATA FOR DIAGRAMS IRETAINING WALL design to BS 8110:1997, BS 8002:1994. BS 8004:1986 etc.sheet 1 of 2Made by rc Job No R68Originated from 'RCC62.xls' on CD 1999 BCA for RCCDate26-Nov-99DESIGN STATUS:VALIDIF(ABS(ECCY)>B/1000/2,"BEARING FAIL",IF(ABS(ECCY)>(B/1000)/6,(2*VL)/(3*((B/1000)/2-ABS(ECCY))),(VL/(B/1000)*(1+(6*ABS(ECCY))/(B/1000)))))IF(ECCY>(B/1000)/6,IF(XX>(B/1000/2-ECCY)*3,0,(((B/1000/2-ECCY)*3-XX)/((B/1000/2-ECCY)*3))*BP),((VL/(B/1000)*(1-(6*ECCY)/(B/1000))))+(B/1000-XX)/(B/1000)*(BP-(VL/(B/1000)*(1-(6*ECCY)/(B/1000)))))2.75170.05070.0530.27570.0530.5570.0530.82570.0531.170.0531.37570.0531.6570.0531.92570.0532.270.0532.47570.0532.7570.0532.750.000IF(ECCY