Sheet2152502220415255003035404550

onewayDesign of SlabHere the aspect ratio Ly/Lx is greater than 2 hence the slab is designed as a one way slab.Effective depth required115.3846153846mmOneShortEdgeDisContinuous:Basic dimensions of slab=LxLy36.5Basic Ly/Lx ratio=2.167>2Hence designed as an one way slabClear cover to reinforcementd'=25mmProvided overall depthD=150.00mmEffective depthd=120.00mmDiameter of barf=10mmSelect Grade of Concretefck=20N/mmSelect Grade of Steelfy=415N/mmLoad calculation :Dead load of the slabDL=3.750kN/mFloor finish(Roof finish)FF=1.9kN/mLive loadLL=1.5kN/mTotal loadTL=7.150kN/mMoment and Area of Steel calculations:MuMu/bdPtAst reqdMin AstDia of barSpacingAst prokN.mN/mm2%mmmmmmmmmm12.070.080.24%293.3714410200392.70safe0.060.050.03Check for DeflectionThe effective depth provided=120.000mmFrom figure 3 of I.S 456:1978 modification factor isModification factor=1.36Required depth under deflection consideration=45.87mmHENCE SAFEcheck for shearfactoredsheartouvPttoucloadforce32.17548.26250.40218750.32724923470.402

Simply suppurtedcontinuous

TWO SLABDesign of SlabHere the aspect ratio Ly/Lx is less than 2 hence the slab is designed as a two way slab.TwoAdjacentEdgesDisContinuous:Basic dimensions of slab=LxLy46Basic Ly/Lx ratio=1.500