Slab Design Sheet
7
ending moment coefficient for Rectangular Panels supported on Four Sides with Page 43 Short span coefficient Ax (values of Ly/Lx) 1 1.1 1.2 1.3 1.4 1.5 1.75 (1) (2) (3) (4) (5) (6) (7) (8) (9) 1 Internal Panels: Negative moment at continuous edge 0.032 0.037 0.043 0.047 0.051 0.053 0.06 positive moment at mid span 0.024 0.028 0.032 0.036 0.039 0.041 0.045 2 One short edge discontinuous: Negative moment at continuous edge 0.037 0.043 0.048 0.051 0.055 0.057 0.064 positive moment at mid span 0.028 0.032 0.036 0.039 0.041 0.044 0.048 3 One long edge discontinuous Negative moment at continuous edge 0.037 0.044 0.052 0.057 0.063 0.067 0.077 positive moment at mid span 0.028 0.033 0.039 0.044 0.047 0.051 0.059 4 Two adjacent edge discontinuous Negative moment at continuous edge 0.047 0.053 0.06 0.065 0.071 0.075 0.084 positive moment at mid span 0.035 0.04 0.045 0.049 0.053 0.056 0.063 5 Two short edge discontinuous Negative moment at continuous edge 0.045 0.049 0.052 0.056 0.059 0.06 0.065 positive moment at mid span 0.035 0.037 0.04 0.043 0.044 0.045 0.049 6 Two long edge discontinuous Negative moment at continuous edge 0 0 0 0 0 0 0 positive moment at mid span 0.035 0.043 0.051 0.057 0.063 0.068 0.08 7 Negative moment at continuous edge 0.057 0.064 0.071 0.076 0.08 0.084 0.091 positive moment at mid span 0.043 0.048 0.053 0.057 0.06 0.064 0.069 8 Negative moment at continuous edge 0 0 0 0 0 0 0 positive moment at mid span 0.043 0.051 0.059 0.065 0.071 0.076 0.087 9 Four edge discontinuous positive moment at mid span 0.056 0.064 0.072 0.079 0.085 0.089 0.1 10 Simple support oneway slab Negative moment at 0.000 0.000 0.000 0.000 0.000 0.000 0.000 positive moment at mid span 0.100 0.100 0.100 0.100 0.100 0.100 0.100 11 End continious oneway slab Case No Types of Panel and Moments Considered ( one long edge continuous) ( one short edge continuous )
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WORK SHEET/SPREAD SHEET EXAMPLE OF DESIGN OF TWO WAY SLANS.
Transcript of Slab Design Sheet
constentsTABLE 3.14 Bending moment coefficient for Rectangular Panels supported on Four Sides with Provision for Torsion at CornersPage 43Case NoTypes of Panel and Moments ConsideredShort span coefficient Ax (values of Ly/Lx)Long span coefficient Ay for all values of11.11.21.31.41.51.752Ly/Lx =(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)1Internal Panels:Negative moment at continuous edge0.0320.0370.0430.0470.0510.0530.060.0650.0324positive moment at mid span0.0240.0280.0320.0360.0390.0410.0450.0490.024562One short edge discontinuous:7Negative moment at continuous edge0.0370.0430.0480.0510.0550.0570.0640.0680.0378positive moment at mid span0.0280.0320.0360.0390.0410.0440.0480.0520.0289103One long edge discontinuous11Negative moment at continuous edge0.0370.0440.0520.0570.0630.0670.0770.0850.03712positive moment at mid span0.0280.0330.0390.0440.0470.0510.0590.0650.02813144Two adjacent edge discontinuous15Negative moment at continuous edge0.0470.0530.060.0650.0710.0750.0840.0910.04716positive moment at mid span0.0350.040.0450.0490.0530.0560.0630.0690.03517185Two short edge discontinuous19Negative moment at continuous edge0.0450.0490.0520.0560.0590.060.0650.069020positive moment at mid span0.0350.0370.040.0430.0440.0450.0490.0520.03521226Two long edge discontinuous23Negative moment at continuous edge000000000.04524positive moment at mid span0.0350.0430.0510.0570.0630.0680.080.0880.03525267Three edges discontinuous ( one long edge continuous)27Negative moment at continuous edge0.0570.0640.0710.0760.080.0840.0910.097028positive moment at mid span0.0430.0480.0530.0570.060.0640.0690.0730.04329308Three edges discontinuous ( one short edge continuous )31Negative moment at continuous edge000000000.05732positive moment at mid span0.0430.0510.0590.0650.0710.0760.0870.0960.04333349Four edge discontinuous3536positive moment at mid span0.0560.0640.0720.0790.0850.0890.10.1070.056373810Simple support oneway slab39Negative moment at0.0000.0000.0000.0000.0000.0000.0000.00040positive moment at mid span0.1000.1000.1000.1000.1000.1000.1000.100414211End continious oneway slab43Negative moment at continuous edge0.1000.1000.1000.1000.1000.1000.1000.10044positive moment at mid span0.0830.0830.0830.0830.0830.0830.0830.083454612Internal oneway slab47Negative moment at continuous edge0.0830.0830.0830.0830.0830.0830.0830.08348positive moment at mid span0.0630.0630.0630.0630.0630.0630.0630.063491Internal Panels:2One short edge discontinuous:3One long edge discontinuous4Two adjacent edge discontinuous5Two short edge discontinuous6Two long edge discontinuous7Three edges discontinuous( one long edge continuous)8Three edges discontinuous( one short edge continuous )9Four edge discontinuous10Simple support oneway slab11End continious oneway slab12Internal oneway slabat outer supportNear middle of end spansimple support oneway slab00.0860End continious oneway slab0.040.0750.086Internal oneway slab0.0630.0630.063
slab tableProjectJob ref.Page26Internal Panels:1.354111126One short edge discontinuous:1.398110123One long edge discontinuous1.151312111023Two adjacent edge discontinuous1.1517161100Calc. byDateCheck byDate26Two short edge discontinuous1.32120010120Two long edge discontinuous125241010Ref.CalculationsOutput23Three edges discontinuous (one long edge continuous)1.1529281DESIGN OF SLAB20Three edges discontinuous (one short edge continuous)133321INPUT DATA20Four edge discontinuous137361Slab Number020Simple support oneway slab1414002Concrete Gradefck =25N/mm223End continious oneway slab1.1545441003Steel Gradefy =415N/mm226Internal oneway slab1.3494801014Short Span LxLx =4.00M5Long Span LyLy =6.00M6Thickness of SlabT =150mm7Cover to reinforcementCc =20mm8Live Load2.00kN/m29Finish Load2.00kN/m210Type of Slab PanelInternal oneway slabLaod Calculation1Self weight of slabSw =3.75kN/m22Live LoadLL =2.00kN/m23Finish LoadFL =2.00kN/m24Misc LoadML =kN/m25Total Factored LoadL =11.63kN/m2DESIGNRatio of Long Span to short spanLy/Lx =1.504948Co effBMkptAstDiaSpacingdProvidedAst81012Span [email protected] = 0.87fyXSpan X185295300Span [email protected] Y000Support [email protected] X140215300Support [email protected] Y000Check depth for Max Bending Moment67.03mmMin Effective Depth Provided118.00mmMin Ast required0.12%180.00mm2DEFLECTION CHECKReinforcement provided at Mid Span X335.1mm2constent for 20 or 261.3Stress in reinforcementFs190.22Percentage of Reinforcement provided0.266%Modification Factor2.000Permisible L/d52.00Actual L/d31.75OKDepth required for Deflection control76.92OK//////////////////////////////////////////////////////////////////////////////0T8125@0T8200@T8200@0T8200@T8150@T8125@///////////////////////////////////////////////////////////////////////////////Asuming Bredth of beam/ bearing200mmConcrete quantity3.906cumLengthNo81012162025REINFORCEMENT QUANTITYSLABBOTSHORT815035604315308000000BOTLONG820052602211572000000TOPCONT ON SHORT81250013000000000TOPCONT ON LONG8200111900448360000000TOPDISCONT ON SHORT815011500864300000000TOPDISCONT ON LONG8200007000000000TOPDBN ON CONT ON SHORT83000036000000000TOPDBN ON CONT ON LONG8300112400163840000000TOPDBN ON DISCONT ON SHORT830011360062160000000TOPDBN ON DISCONT ON LONG83000024000000000TOTAL LENGTH IN MTmts455.400.000.000.000.000.00kg/m0.390.610.891.582.473.85kgs177.610.000.000.000.000.00Quantity SummaryConcrete quantity3.906CumReinforcement quantity177.61kgskg/cum45.47
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