07 - Slab Design

DESIGN OF TWO-WAY SLAB Design Parameters: Length = Width = fc' = fy = Imposed Live Load = Wall Dead Load =

VERSION: 2.2.0

5.00 3.50 20.70 228.00 1.92 6.05 No Wall along Length? = No

Wall along Width? = Yes Yes DESIGN: Minimum Thickness of Slab: t= 94 USE Thickness, t = 100 Slab Dead Load = 2.35 Total SS.Wt., ws = 6.56 Total LS. Wt., wL = 15.03 Dimension ratio, m = 0.70 Along Short Span Direction: Midspan: w= 0.0404 p= 0.0037 Steel Requirement: 2 As = 275.35 mm bar size = 10 mm mm2 bar area = 79 Spacing = 285 mm

SAY =

250

mm

ADEQUATE Along Long Span Direction: Midspan: w= 0.0494 p= 0.0045 Steel Requirement: 2 As = 313.95 mm bar size = 10 mm mm2 bar area = 79 Spacing = 250 mm

SAY =

250

ADEQUATE Recommendation:

S-1

Slab No.:

mm

m m MPa MPa kN/m kN/m

Slab Coef for Case: Negative Moment coef.: Neg Cs = Neg Cb = Shear Coefficients:

CaseNo. [1-2-3-4-5-6-7-8-9] Dead Load Moment coef.: 0.081 Pos Cs = 0.046 0.019 Pos Cb = 0.011 Live Load Moment coef.:

44

Yes/No?

Ws =

0.810

Pos Cs =

0.057

Yes/No?

Wb =

0.190

Pos Cb =

0.014

Slab Moments: Negative Moment: Ms = 6.50932 kN.m Mb = 7.13933 kN.m Total Positive Moment: MsT = 4.136 kN.m MbT = 4.378 kN.m

mm mm kN/m kN/m kN/m

Continuous Edge: w= 0.0646 p= 0.0059 Steel Requirement: 2 As = 439.71 mm bar size = 10 mm mm2 bar area = 79 Spacing = 179 mm

SAY =

150

mm

Dead Load Positive Moment: Ms = 1.857 kN.m Mb = 3.236 kN.m Live Load Positive Moment: Ms = 2.279 kN.m Mb = 1.1424 kN.m

Discontinuous Edge: Use 3 times the spacing of Midspan(i.e. the moment is only 1/3 of the midspan moment)

Spacing = ACI Code = 0.002bt Temp. = Rec'd =

SAY =

ADEQUATE

150

300

mm mm mm mm

mm

ADEQUATE

Continuous Edge: w= 0.0822 p= 0.0075 Steel Requirement: 2 As = 522.36 mm bar size = 10 mm mm2 bar area = 79 Spacing = 150 mm

SAY =

750 450 393 393

mm

Discontinuous Edge: Use 3 times the spacing of Midspan(i.e. the moment is only 1/3 of the midspan moment)

Spacing = ACI Code = 0.002bt Temp. = Rec'd =

SAY =

ADEQUATE

750 450 393 393

300

mm mm mm mm

mm

ADEQUATE

USE 10 mm dia. @ 150mm O.C. Top Main Bars for Top Cont. Edge USE 10 mm dia. @ max. of 450mm spacing Temp Bars

3.5 M. SHORT SPAN

USE 10mm @ 250mm O.C. Main Bottom Bars USE 10 mm dia. @ 500mm O.C. Bottom Temp. Bars

USE 10mm @ 250mm O.C. Main Bottom Bars

USE 10 mm dia. @ 150 mm O.C. Top Main Bars

USE 10 mm dia. @ 500 mm O.C. Bottom Temp. Bars 5 M. LONG SPAN

Engr. Joseph Cloyd L. Lamberte Aug/28/2013 1:28 PM

Program Created by: JOSEPH CLOYD L. LAMBERTE, MSCE, PICE, SEAD

Program Licensed to: