(Engineersdaily.com)RCC62 Retaining Wall (1)
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Project Spreadsheets to BS 8110etc Client http://www.engineersdaily.com Made by ate Page !ocation "ridline 1 rc 0#$Mar$%01# 1&' ()*+,-,-" +!! design to BS 8110:%00# Chec ed (e ision ob -o &.# 2 %003 *CC chg $ (38 ,)+!,S) S*(4C*4() and 56(C) ,+"(+MS )S,"- S*+*4S: VALID WARNING : Passi e press7re sho7ld only be considered i it can be g7aranteed that there will be no 7t7re e9ca ation in ront o the wall. ; &%#0 B ; '000 *w ; &00 w ; 1#00 B, ; 1%00 *b ; &00 p ; &00 B- ; 0 *- ; 0 n ; 0 M+*)(,+! P(6P)(*,)S steel class + c7 ; &# -/mm< 1.# concrete y ; #00 -/mm< 1.1# steel co er to tension steel ; #0 mm Ma9 allowable design s7r ace crac width = > ; 0.& mm Concrete density ; %' -/m? S6,!P(6P)(*,)S all "eometry esign angle o int@l riction o retained mat@l =A> ; &0 degree esign cohesion o retained mat@l =C > ; 0 -/m< =6nly gran7lar bac l considered DCD ; Eero> ensity o retained mat@l =F > ; %0 -/m? S7bmerged ensity o retained mat@l =Fs > ; #.00 -/m? Gde a7lt;%/&HF =only apply when 1&.&& esign angle o int@l riction o base mat@l =Ab> ; %0 degree +SS4MP*,6-S esign cohesion o base material =Cb > ; 10 -/m< a> all riction is Eero ensity o base material =Fb > ; 10 -/m? b> Minim7m acti e earth press7re ; 0.%#F +llowable gross gro7nd bearing press7re ="BP> ; %00 -/m< c> "ran7lar bac ll !6+,-"S S7rcharge load $$ li e =SIJ> ; 10 -/m< S7rcharge load $$ dead =S"J> ;10 water beneath the wall. !ine load $$ li e =!IJ> ; 10.& -/m !ine load $$ dead =!"J> ;'& -/m lateral earth press7res istance o line load rom wall =K> ; 0 mm h> esign not intended or walls o er &.0 m high !+*)(+! 56(C)S =7n actored> Ja ; 0.&& G de a7lt a ; =1$S,- A>/=1LS,- A 0.&& Jp ; %.0' G de a7lt p ; =1LS,- Ab>/=1$S,- %.0' Jpc ; %.83 %.83 Jac ; 1.1# 5orce !e er arm Moment abo7t *6) = -> =m> = -m> = -> = -m> P) ; % .#8 !) ; 1.1 ' &#.&& 1.'0 '1.'% ' .'3 PS="J> ; 10.8& !S ; 1.3& 1N.30 1.'0 1#.1N %'.3# PS=IJ> ; 10.8& !S ; 1.3& 1N.30 1.30 1N.&& %8.1N P!="J> ; 0.00 !! ; &.%# 0.00 1.'0 0.00 0.00 P!=IJ> ; 0.00 !! ; &.%# 0.00 1.30 0.00 0.00 P ; 11.%# ! ; 0.#0 #.3& 1.'0 1#.N# N.88 Total 3%.#0 N3.13 8 .3N 110.1# PP ; $ .' =!P$ -> ; 0.1# $1.&8 1.00 $ .' $1.&8 The Concrete Centre 6riginated rom @ RCC62.xls@ ,M)-S,6-S =mm> γ m ; γ m ; =0.% or 0.& mm only> d>oes not incl7de chec o rotational slide/slop e>oes not incl7de eOect o seepage o gro7nd >oes not incl7de de ection chec o wall d7e t i> oes not incl7de chec or temp. or shrin age G de a7lt pc ; % p 0.# Q ; G % a 0.# Q f 5 7lt M 7lt
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Retaing Walls design
Transcript of (Engineersdaily.com)RCC62 Retaining Wall (1)
DATA3.5OPERATING INSTRUCTIONSProjectSpreadsheets to BS 8110etcThe Concrete CentreENTER DATA IN BLUE CELLS ONLY.Clienthttp://www.engineersdaily.comMade byDatePageRED MESSAGES INDICATE ENTRY ERRORS.LocationGrid line 1rc42046.0134RETAINING WALL design to BS 8110:2005CheckedRevisionJob NoOriginated from 'RCC62.xls'v3.5 2006 TCCchg-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.bh2500bh, min1876.3883748663DIMENSIONS (mm)H =3250B =4000Tw =300Hw =1500BI =1200Tb =300Hp =300BN =0TN =0Hn =0MATERIAL PROPERTIESsteel classAfcu =35N/mmgm =1.5concretefy =500N/mmgm =1.15steelcover to tension steel =50mmMax allowable design surface crack width (W) =0.3mm(0.2 or 0.3 mm only)BS8007 specifies crack widths of 0.1 or 0.2 mm.Concrete 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 ) =5.00kN/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) =10.3kN/mf)Does not include deflection check of wall due to300= HpLine load -- dead (LGK) =43kN/mlateral earth pressuresDistance of line load from wall (X) =0mmh) Design not intended for walls over 3.0 m highi) Does not include check for temp. or shrinkage effects29.581.19LATERAL 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 =29.58LE =1.19435.331.4041.4249.46PS(GK) =10.83LS =1.6317.601.4015.1724.65PS(QK) =10.83LS =1.6317.601.6017.3328.17PL(GK) =0.00LL =3.250.001.400.000.00PL(QK) =0.00LL =3.250.001.600.000.00PW =11.25LW =0.505.631.4015.757.88REINFORCEMENT DENSITYTotal62.5076.1689.67110.15274.4 kg/mPP =-9.49(LP-HN) =0.15-1.381.00-9.49-1.38
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DATA0400030030032503250300300000000
STABILITYOPERATING INSTRUCTIONSProjectSpreadsheets to BS 8110etcThe Concrete CentreENTER DATA IN BLUE CELLS ONLY.Clienthttp://www.engineersdaily.comMade byDatePageRED MESSAGES INDICATE ENTRY ERRORS.LocationGrid line 1rc42046.0135RETAINING WALL design to BS 8110:2005CheckedRevisionJob NoOriginated from 'RCC62.xls' v3.5 2006 TCCchg-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 =29.58LE =1.0832.05EARTHOPTION FACTORSPS(GK) =10.83LS =1.6317.60Warning: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.1.00PS(QK) =10.83LS =1.6317.601.00PL(GK) =0.00LL =3.250.001.00PL(QK) =0.00LL =3.250.001.00PW =11.25LW =0.505.631.00 P =62.50Pp =-9.49(LP-HN) =0.15-1.38 Mo =71.50RestoringVertical FORCE (kN)Lever arm (m)Moment (kNm)WATERNO WATERMomentsWall =17.641.3523.81This program does not include effect of seepage of ground water beneath the wall. However temporary hydrostatatic head can be included in the design by using Input Data Hw. When equilibrium water level is higher than the base level, buoyancy of the base due to displacement of water should be allowed in the stability calculation.17.6421.24Base =16.802.0033.60Warning:16.8028.80Nib =0.000.000.000.000.00Earth =102.502.75281.88Water =30.002.7582.50Surcharge =50.002.75137.50Line load =53.301.5079.95 V =270.24 Mr =639.24Factor of Safety, Mr / Mo =8.94> 1,50OK1SLIDING(using overall factor of safety instead of partial safety factor)F.O.S =1.500.90.8Sum of LATERAL FORCES, P =62.50kN0.70.6PASSIVE FORCE, Pp x Reduction factor (1) =-9.49kNRed'n factor for passive force =1.000.5BASE FRICTION ( V TANb + 0.75 B Cb ) =-128.36kN0.4Sum of FORCES RESISTING SLIDING, Pr =-137.85kN0.30.2Factor of Safety, Pr / P =2.21> 1,50OK0.11GROUND BEARING FAILURETaking moments about centre of base (anticlockwise "+") :1Vertical FORCES (kN)Lever arm (m)Moment (kNm)Wall =21.240.6513.81Base =28.800.000.00Nib =0.002.000.00Earth =102.50-0.75-76.88Water =30.00-0.75-22.50Surcharge=50.00-0.75-37.50Line load =53.300.5026.65 V =285.84 Mv =-96.42Moment due to LATERAL FORCES, Mo =71.50kNmResultant Moment, M = Mv + Mo =-24.91kNmEccentricity from base centre, M / V =-0.09mTherefore, MAXIMUM Gross Bearing Pressure (GRP) =77kN/m< 200OK
STABILITY58.217114055758.590829493458.964544931259.33826036959.711975806760.085691244560.459406682360.833122120161.206837557861.580552995661.954268433462.327983871262.701699308963.075414746763.449130184563.822845622364.1965610664.570276497864.943991935665.317707373465.691422811166.065138248966.438853686766.812569124567.186284562267.5667.933715437868.307430875568.681146313369.054861751169.428577188969.802292626670.176008064470.549723502270.9234389471.297154377771.670869815572.044585253372.418300691172.792016128873.165731566673.539447004473.913162442274.286877879974.660593317775.034308755575.408024193375.78173963176.155455068876.529170506676.9028859443
&APage &PBEARING PRESSURE (KN/m)
DESIGNOPERATING INSTRUCTIONSProjectSpreadsheets to BS 8110etcThe Concrete CentreENTER DATA IN BLUE CELLS ONLY.Clienthttp://www.engineersdaily.comMade byDatePageRED MESSAGES INDICATE ENTRY ERRORS.LocationGrid line 1rc42046.0136RETAINING WALL design to BS 8110:2005CheckedRevisionJob NoOriginated from 'RCC62.xls' v3.5 2006 TCCchg-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)EARTH25.411.0727.081.435.5737.92SURCHARGE(GK)9.831.4814.501.413.7720.31SURCHARGE(QK)9.831.4814.501.615.7323.21LINE LOAD(GK)0.002.950.001.40.000.00LINE LOAD(QK)0.002.950.001.60.000.00WATER7.200.402.881.410.084.03Total52.2758.9775.1585.46BS8110referenceMAIN REINFORCEMENT :Min. As =390mm2Table 3.25f =20mmcentres =150mm< 364OK3.12.11.2.7(b)Asprov =2094mm2> 390OKMOMENT of RESISTANCE :d =240mmz =210.88mm03.4.4.4As' =0mm2x =64.7198788665xmax =120Mres =192.03kNm> 85,46OKz =210.8760545101Fcmax =1688.4Mr =192.0255689417Fs =910.6086956522SHEAR RESISTANCE:As' =-1788.92100 As/bd =0.87%Mr' =169.0512117913vc =0.77N/mm2Table 3.8Vres =184.24kN> 75,15OK3.5.5.2Ultimate Bending Moment DiagramCHECK CRACK WIDTH TO BS8110/BS8007 :X =95.47mm(Temperature and shrinkage effects not included)Acr =86.05mmem =0.0007267222BS8007W =0.14mm< 0,30OKApp. B.20REINFORCEMENT SUMMARY for WALLTypefCentresAsMin. Asmmmmmm2mm2VERTICAL EXT. FACEH12150754390OKVERTICAL INT. FACEH201502094390OKTRANSVERSEH12150754390OKBase M about toe-side face of wallSW base =7.2Base M about heel-side face of wallPressure74.913beff3.816bl1.2heel length2.5gross Vgross Mgross Vgross MProjectSpreadsheets to BS 8110etcThe Concrete CentreCONDITION 189.9053.94(pressure towards toe)CONDITION 1187.28234.10Clienthttp://www.engineersdaily.comMade byDatePageCONDITION 276.0838.64(pressure towards heel)CONDITION 2173.47200.84LocationGrid line 1rc42046.0137CHOOSE76.0838.64CHOOSE187.28234.10RETAINING WALL design to BS 8110:2005CheckedRevisionJob NoLESS BASE8.645.18LESS BASE18.0022.50Originated from 'RCC62.xls' v3.5 2006 TCCchg-R68DES ULT97.9448.62- EARTH147.50184.38- WATER net-15.00-18.75BASE - unloaded side ( per metre length )BS8110- SURCHARGE50.0062.50gf =1.45(default = ult mt / non-factored mt. ) =1.45reference120.9674749607- LINE LOAD53.300.00V ult =97.94kN72.5804849764DES ULT-96.20-23.89M ult =48.62kNm( '+' TENSION AT BOTTOM FACE)BOTTOM REINFORCEMENT :Min. As =390mm2Table 3.25f =16mmcentres =150mm< 558OK3.12.11.2.7(b)Asprov =1340mm2> 390OKMOMENT of RESISTANCE :d =242mmx =41.4207224746xmax =121z =223.36mm3.4.4.4z =223.3606748864Fcmax =1702.47As' =0mm20Mr =130.1722706037Fs =582.7895652174Mres =130.17kNm> 48,62OKAs' =-2575.265Mr' =108.8283341965SHEAR RESISTANCE:100 As/bd =0.55%vc =0.66N/mm2Table 3.8Vres =159.32kN> 97,94OK3.5.5.2CHECK CRACK WIDTH TO BS8110/BS8007 :(Temperature and shrinkage effects not included)X =80.69mmem =0.0004218393BS8007Acr =86.81mmW =0.08mm< 0,30OKApp. B.20BASE - loaded side ( per metre length )V ult =96.20kNM ult =23.89kNm(TENSION - TOP FACE)151.2093437009TOP REINFORCEMENT :Min. As =390mm2Table 3.25f =16mmcentres =150mm< 558OK3.12.11.2.7(b)Asprov =1340mm2> 390OKMOMENT RESISTANCE :d =242mmx =41.4207224746xmax =121z =223.36mm3.4.4.4z =223.3606748864Fcmax =1702.47As' =0mm2Mr =130.1722706037Fs =582.7895652174Mres =130.17kNm> 23,89OKAs' =-2575.265Mr' =108.8283341965SHEAR RESISTANCE:100 As/bd =0.55%0vc =0.66N/mm2Table 3.8Vres =159.32kN> 96,20OK3.5.5.2CHECK CRACK WIDTH to BS8100/ BS8007 :(Temperature and shrinkage effects not included)X =80.69mmem =0.0000187741BS8007Acr =86.81mmW =0.00mm< 0,30OKApp. B.2REINFORCEMENT SUMMARY for BASETypefCentersAsMin. Asmmmmmm2mm2TOP (DESIGN)H161501340390OKBOTTOM (DESIGN)H161501340390OKTRANSVERSEH12200565390OK
Print SheetPS(QK)PL(GK)PL(QK)PS(GK)PWALLOW BUOYANCY OF BASE
DESIGN00.02552728410.10210913650.22974555710.40843654590.6381821030.91898222831.25083692181.63374618362.06771001362.55272841183.08880137833.67592891314.3141110165.00334768725.74363892666.53498473437.37738511028.27084005449.215349566710.210913647411.257532296212.355205513313.503933298614.703715652215.95455257417.380883992718.976485563320.658652397222.429301359624.289541984626.231546338828.255494372530.364740608132.562639567734.852545773837.237813748739.721798014642.30785309444.99933350947.79959378250.711988435353.739871991356.886598972260.155523900463.550001298167.073385687770.729031591574.520293531878.450526030882.5230836111
&APage &P< base WALL (m) top >MOMENT (KNm)
WEIGHTProjectSpreadsheets to BS 8110etcThe Concrete CentreClienthttp://www.engineersdaily.comMade byDatePageLocationGrid line 1rc42046.0138RETAINING WALL design to BS 8110:2005CheckedRevisionJob NoOriginated from 'RCC62.xls' v3.5 2006 TCCchg-R68APPROXIMATE WEIGHT OF REINFORCEMENTNo.TypeDiaLengthUnit WtWeightWALLVERTICAL - External face7H1230460.88818.93VERTICAL - Internal face7H2031102.46653.69TRANSVERSE (Ext.& Int.)40H1210000.88835.51BASETOP (MAIN)7H1641281.57845.61BOTTOM (MAIN)7H1641281.57845.61TRANSVERSE ( T & B )42H1210000.88837.29WALL STARTERS (Ext.)7H1211550.8887.18WALL STARTERS (Int.)7H2014752.46625.46NIB(assume same reinforcement as wall)INTERNAL FACE (MAIN)7H12960.8880.60EXTERNAL FACE (MAIN)7H201602.4662.76TRANSVERSE (EXT.+ INT.)2H1210000.8881.78SUMMARYApprox total reinforcement per metre length of wall (kg)274.4
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DiagramsProjectSpreadsheets to BS 8110etcLocationGrid line 1DATA FOR DIAGRAMS IRETAINING WALL design to BS 8110:2005sheet 1 of 2Made by rc Job No R68Originated from 'RCC62.xls' v3.5 2006 TCCDate11-Feb-15DESIGN 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)))))4176.90076.9030.476.9030.876.9031.276.9031.676.903276.9032.476.9032.876.9033.276.9033.676.903476.90340.000IF(ECCY
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