BOX CULVERT Spread Sheet

8/13/2019 BOX CULVERT Spread Sheet

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DESIGN OF BOX CULVERT

Size of Haunch =Box length C/L to u/s side =Box length C/L to d/s side =Distance between box & drop wall =Distance between box & curtain wall =

Length of curtain & drop wall =

Density of Soil (Saturated) =Density of Concrete =Angle of Internal friction =Density of Water =Clear cover on all faces =

Intensity of Surcharge =Spacing of Haunch bars =Thickness & Projection of L.C =

Depth of Over-burden soil @ Centre =Maximum Foundation Pressure =Length of Box =

DATA FOR DESIGNClear Span =Clear Height =Bed Level(Top of W.C) =Formation Level =


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GENERAL DATABed Slope =H.F.L =ASSUMPTIONS

Grade of Concrete =Weight of Track & Ballast =Ballast Cushion =Loading Standard =Thickness of Wearing Coat =Grade of Steel =Equivalent U.D.L =

Formation Width =RESULTSThickness of Top Slab =Thickness of Bottom Slab =Thickness of Vertical Wall =

Effective Span =

Effective Height =

Per. tesile stress in Steel

GENERAL :

Coe of Active Earth Pres'reEffective SpanHeight of SurchargeClear Disperson WidthTotal FillC . D . A


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Equivalent U.D.LDEAD LOAD

Weight of Top SlabWeight of Earth

Weight of Track & Ballast

Total Dead Load

LIVE LOADEffective SpanEffective Height

Equivalent U.D.L. with CDALive Load

Total Load on Top SlabTotal Load on Bottom Slab (Incl. W.C. weight&

TOTAL PRESSURE ON SOIL

Reaction from Bottom Slab

Water Weight

Total PressureBearing Capacity Shouldnot be less than

SIDE PRESSUREHeight From F.L. to Centreof Top SlabHeight From F.L. to Centreof Bottom Slab


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Disprn Width for Top SlabDisprn Width for Bott Slab

Density of Submerged Soil

ure of Soil @ TopLat..Presure of Soil @ Bot

Side Pressure @ Centre ofTop Slab ( Lat.Pr. due to D.L + L.L + E.Pr.)Side Pressure @ Centre of

Bottom Slab ( Lat.Pr. due to D.L + L.L + E.Pr.)

Side Pressure @ centre of Top Slab(Lat.Pr.dueSide Pressure @ centre of Bottom Slab(Lat.Pr.d

MOMENTSMab

McdMadMda

DISTRIBUTION FACTORSi abi ad

i cdi da

MOMENTS @ CENTREMc abMc cdMc ad,bc


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DESIGN CONSTANTSPerm.Bending StressN.A. constant

L.A. constantM.R. constant

NET MOMENT @ CENTREFor Top SlabFor Bottom SlabFor Vertical Wall (Max +ve @ Center)For Vertical Wall (Max -ve @ Center)

DESIGNTOP SLAB :

MomentDepth requiredOverall depthDepth provided

Effective DepthAst required @ EdgeAst required @ CenterSpacing of Bars @ EdgeSpacing of Bars @ Center

*** Provided Spacing @ Center

BOTTOM SLAB :

MomentDepth requiredOverall depthDepth provided


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Effective DepthAst required @ EdgeAst required @ CenterSpacing of Bars @ Edge

Spacing of Bars @ CenterProvided Spacing

VERTICAL WALL :

MomentDepth required

Overall depthDepth providedEffective DepthAst required @ Edge for -ve MomentAst required @ Center for -ve MomentAst required @ Center for +ve Moment

Minimum dia requiredSuggested diaSpacing of BarsProvided SpacingMinimum Area of Main Steel

DISTRIBUTION STEEL

Area of SteelNo. of BarsMinimum dia requiredSuggested diaSpacing of BarsProvided Spacing


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SHEAR CALCULATIONS1) @ Face of wallClear span

EUDL FOR SHEAREUDL With CDALive LoadTl. load on top slabTl. load on bot slab

a) Top Slab

Shear ForceShear StressPercentage of SteelPermissible Shear StressBalance Shear Force

b) Bottom SlabShear ForceShear StressPercentage of SteelPermissible Shear StressBalance Shear Force

c) Vertical WallShear ForceShear StressPercentage of SteelPermissible Shear StressBalance Shear Force


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DESIGN OF SHEAR LINKSa) Top Slab :Spacing of distributors (Twice)No of links /metre

Spacing along Box reqd.Spacing provided:i) Along Boxii) Along span

b) Bottom Slab :

Spacing of distributors (Twice)No of links /metreSpacing along Box reqd.Spacing provided:i) Along Boxii) Along span

c) Vertical Wall :Spacing of Main barsNo of bars /metreSpacing along spanSpacing provided:i) Along Boxii) Along span

2) Check for shear after haunchClear spanEUDL FOR SHEAREUDL With CDALive Load


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Tl. load on top slabTl. load on bot slab

a) Top Slab

Shear ForceShear StressPercentage of SteelPermissible Shear StressBalance Shear Force

b) Bottom SlabShear ForceShear StressPercentage of SteelPermissible Shear StressBalance Shear Force

c) Vertical WallShear ForceShear StressPercentage of SteelPermissible Shear StressBalance Shear Force

DESIGN OF SHEAR LINKS

a) Top Slab :Spacing of distributors (Twice)No of links /metreSpacing along Box reqd.Spacing provided:i) Along Box


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ii) Along span

b) Bottom Slab :

Spacing of distributors (Twice)No of links /metreSpacing along Box reqd.Spacing provided:i) Along Boxii) Along span

c) Vertical Wall :Spacing of Main barsNo of bars /metreSpacing along spanSpacing provided:i) Along Boxii) Along span


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200 mm5.525 m5.750 m3.469 m3.333 m

9.540 m

1.900 t/cum2.500 t/cum

35 Degrees1.000 t/cum

50 mm

15.800 t/m200 mm

0.10 m

1.080 m15 t/sq.m

11.275 m

2.000 m1.500 m

152.610 m155.390 m


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1 IN 1000.000

M 255.500 t/m0.350 mHMLS

0.150 mFe 415

60.000 t

6.950 m

35 cm35 cm35 cm

2.350 m

1.850 m

= 2000 Kg/sq.cm

= 0.542= 2.400 m= 1.115 m= 5.215 m= 1.465 m= 0.406 m


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= 60.000 t

= 0.875 t/sqm= 2.118 t/sqm

= 1.131 t/sqm----------------

= 4.124 t/sqm----------------

= 2.400 m= 1.900

= 84.353 t= 6.740 t/sqm

= 10.864 t/sqm= 13.192 t/sqm

= 13.192 t/sqm== 1.350 t/sqm

= 14.542 t/sqm

= 15.000 t/sqm

= 1.315 m

= 3.215 m


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= 4.315 m= 6.215 m

= 0.900 t/cum

= 1.354 t/sqm= 3.310 t/sqm

= 4.029 t/sqm

= 5.168 t/sqm

= 2.045 t/sqm= 3.790 t/sqm

= 5.214 t-m

= 6.332 t-m= 1.349 t-m= 1.418 t-m

= 0.442= 0.558

= 0.442= 0.558

= 7.822 t-m= 9.498 t-m= 2.075 t-m


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== 0.319

= 0.894= 11.521

= 4.437 t-m= 5.215 t-m= -1.758 t-m= -2.725

= 4.796 t-m= 20.404 cm= 26.404 cm= 35.000 cm

= 29.000 cm= 6.661 sq cm= 9.25392381= 47.162 cm

33.949= 25.000 cm

= 5.580 t-m= 22.007 cm= 28.007 cm= 35.000 cm


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= 29.000 cm= 8.387 sq cm

10.765= 37.457 cm

29.183= 25.000 cm

= 4.347 t-m= 19.425 cm

= 25.425 cm= 35.000 cm= 29.000 cm= 8.387 sq cm

5.25734526

= 14.6142643 mm= 12 mm= 37.457 cm= 20.000 cm=

= 2.625 sq cm= 3.342= 8.17588381 mm= 10 mm= 29.920 cm= 20.000 cm


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2.000 m

= 77.440 t= 108.871 t= 7.732 t/sqm= 11.856 t/sqm= 14.200 t/sqm

= 12.008 t= 2.451 Kg/sq cm= 0.231 %= 2.123 Kg/sq.cm= 1602.712 Kg


= 4.099 t= 0.837 Kg/sq cm= 0.231 %= 2.123 Kg/sq.cm= -6305.871 Kg


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= 200.000 mm= 5.000

= 260.752 mm

= 200.000 mm= 200.000 mm

= 200.000 mm= 5.000= 260.752 mm

= 200.000 mm= 200.000 mm

= 200.000 mm= 5.000= 260.752 mm

= 200.000 mm= 200.000 mm

2.000 m= 77.440 t= 108.871 t= 7.732 t/sqm


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= 11.856 t/sqm= 14.200 t/sqm



= 3.134 t= 1.081 Kg/sq cm= 0.390 %= 2.748 Kg/sq.cm= -4835.311 Kg

= 200.000 mm= 5.000= 217.500 mm

= 200.000 mm


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= 200.000 mm

= 200.000 mm= 5.000= 217.500 mm

= 200.000 mm= 200.000 mm

= 200.000 mm= 5.000= 217.500 mm

= 200.000 mm= 200.000 mm

BOX CULVERT Spread Sheet

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