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DESIGN OF ONE-WAY SLAB SLAB 3 2ND FLOOR, 3RD FLOOR, 4TH FLOOR DIMENSIONS REQUIRED STEEL RATIO Short Span 2.000 m Effective Depth 125 mm Long Span 6.00 m R 0.4767 Use m 0.33 0.0012 Use t 150 mm 0.0034 0.01832 DESIGN LOADS (kPa) use ρ 0.0034 Dead Load 1.248 0.0018 Weight of Slab 3.525 Total Dead Load 4.773 MAIN BAR REINFORCEMENT Total Live Load 4.80 As 422.705 3.738 MINIMUM THICKNESS s 267.556 Support Type One End Continuous 450 use s 260 mm Minimum Thickness 83 mm TEMPERATURE REINFORCEMENT FACTORED LOADS As 270.000 Uniform Dead Load 5.728 kN/m 2.387 Uniform Live Load 7.680 kN/m s 418.879 Total Uniform Load 13.408 kN/m 450 Factored Moment 6.704 kNm use s 410 mm ρreq ρmin ρmax use ρtemp n12 smax n12 smax

Concrete Slab Design

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Reinforced concrete design. One way and two way slabs are considered. Coefficients method is used for the two way slab

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Page 1: Concrete Slab Design

DESIGN OF ONE-WAY SLABSLAB 3

2ND FLOOR, 3RD FLOOR, 4TH FLOOR

DIMENSIONS REQUIRED STEEL RATIOSUMMARY

Short Span 2.000 m Effective Depth 125 mm

Long Span 6.00 m R 0.4767 Use 12mm diameter main bars spaced at

m 0.33 0.0012 Use 12mm diameter temperature bars spaced at

t 150 mm 0.0034

0.01832

DESIGN LOADS (kPa) use ρ 0.0034

Dead Load 1.248 0.0018

Weight of Slab 3.525

Total Dead Load 4.773 MAIN BAR REINFORCEMENT

Total Live Load 4.80 As 422.705

3.738

MINIMUM THICKNESS s 267.556

Support Type One End Continuous450

use s 260 mm

Minimum Thickness 83 mm

TEMPERATURE REINFORCEMENT

FACTORED LOADS As 270.000

Uniform Dead Load 5.728 kN/m 2.387

Uniform Live Load 7.680 kN/m s 418.879

Total Uniform Load 13.408 kN/m 450

Factored Moment 6.704 kNm use s 410 mm

ρreq

ρmin

ρmax

use ρtemp

n12

smax

n12

smax

Page 2: Concrete Slab Design

SUMMARY

Use 12mm diameter main bars spaced at 260 mm on center

Use 12mm diameter temperature bars spaced at 410 mm on center

Page 3: Concrete Slab Design

DESIGN OF TWO-WAY SLABSLAB 33

GROUND, 2ND, 3RD, 4TH, 5TH, 6TH

DIMENSIONS DESIGN LOADS (kPa) MOMENT COEFFICIENTS : CASE

Short Span 4.45 m Dead Load 2.348 DEAD LOAD

Long Span 7.75 m Weight of Slab 4.113 Col Strip

m 0.57 Total Dead Load 6.461 Short Span 0.086

t 175 mm Total Live Load 4.80 Long Span 0.011

DESIGN MOMENTS - DL (kNm) DESIGN MOMENTS - LL (kNm) TOTAL (kNm)

Col Strip Mid Strip Col Strip Mid Strip Col Strip

Short Span 10.940 4.672 Short Span 8.128 5.804 Short Span 26.134

Long Span 4.381 1.352 Long Span 3.255 1.869 Long Span 10.465

SHORT SPAN LONG SPAN

COL STRIP MID STRIP COL STRIP MID STRIP

Mu 26.134 14.893 10.465 4.613SUMMARY

d 149 149 137 137

b 1000 1000 1000 1000 SHORT SPAN Use 12 mm bars spaced at

R 1.308 0.745 0.620 0.273 LONG SPAN Use 12 mm bars spaced at

0.0033 0.0018 0.0015 0.0007

use ρ 0.0034 0.0034 0.0034 0.0034

As 503.865 503.865 463.285 463.285

4.455 4.455 4.096 4.096

s 224.460 224.460 244.120 244.120

350 350 350 350

use s 220 220 240 240

DESIGN OF TWO-WAY SLABSLAB 26

ROOFDECK

DIMENSIONS DESIGN LOADS (kPa) MOMENT COEFFICIENTS : CASE

Short Span 5.00 m Dead Load 2.348 DEAD LOAD

Long Span 6.00 m Weight of Slab 4.113 Col Strip

m 0.83 Total Dead Load 6.461 Short Span 0.062

t 175 mm Total Live Load 1.00 Long Span 0.030

DESIGN MOMENTS - DL (kNm) DESIGN MOMENTS - LL (kNm) TOTAL (kNm)

Col Strip Mid Strip Col Strip Mid Strip Col Strip

Short Span 9.960 3.984 Short Span 1.542 0.958 Short Span 14.419

ρreq

n12

smax

Page 4: Concrete Slab Design

Long Span 6.900 2.713 Long Span 1.068 0.660 Long Span 9.989

SHORT SPAN LONG SPAN

COL STRIP MID STRIP COL STRIP MID STRIP

Mu 14.419 6.314 9.989 4.312SUMMARY

d 149 149 137 137

b 1000 1000 1000 1000 SHORT SPAN Use 12 mm bars spaced at

R 0.722 0.316 0.591 0.255 LONG SPAN Use 12 mm bars spaced at

0.0018 0.0008 0.0014 0.0006

use ρ 0.0034 0.0034 0.0034 0.0034

As 503.865 503.865 463.285 463.285

4.455 4.455 4.096 4.096

s 224.460 224.460 244.120 244.120

350 350 350 350

use s 220 220 240 240

DESIGN OF TWO-WAY SLABSLAB 27

ROOFDECK

DIMENSIONS DESIGN LOADS (kPa) MOMENT COEFFICIENTS : CASE

Short Span 5.50 m Dead Load 2.348 DEAD LOAD

Long Span 6.00 m Weight of Slab 4.113 Col Strip

m 0.92 Total Dead Load 6.461 Short Span 0.053

t 175 mm Total Live Load 1.00 Long Span 0.038

DESIGN MOMENTS - DL (kNm) DESIGN MOMENTS - LL (kNm) TOTAL (kNm)

Col Strip Mid Strip Col Strip Mid Strip Col Strip

Short Span 10.423 4.169 Short Span 1.613 0.988 Short Span 15.089

Long Span 8.915 3.411 Long Span 1.380 0.828 Long Span 12.907

SHORT SPAN LONG SPAN

COL STRIP MID STRIP COL STRIP MID STRIP

Mu 15.089 6.584 12.907 5.418SUMMARY

d 149 149 137 137

b 1000 1000 1000 1000 SHORT SPAN Use 12 mm bars spaced at

R 0.755 0.330 0.764 0.321 LONG SPAN Use 12 mm bars spaced at

0.0019 0.0008 0.0019 0.0008

use ρ 0.0034 0.0034 0.0034 0.0034

As 503.865 503.865 463.285 463.285

ρreq

n12

smax

ρreq

Page 5: Concrete Slab Design

4.455 4.455 4.096 4.096

s 224.460 224.460 244.120 244.120

350 350 350 350

use s 220 220 240 240

DESIGN OF TWO-WAY SLABSLAB 28

ROOFDECK

DIMENSIONS DESIGN LOADS (kPa) MOMENT COEFFICIENTS : CASE

Short Span 6.00 m Dead Load 2.348 DEAD LOAD

Long Span 7.25 m Weight of Slab 4.113 Col Strip

m 0.83 Total Dead Load 6.461 Short Span 0.073

t 175 mm Total Live Load 1.00 Long Span 0.019

DESIGN MOMENTS - DL (kNm) DESIGN MOMENTS - LL (kNm) TOTAL (kNm)

Col Strip Mid Strip Col Strip Mid Strip Col Strip

Short Span 17.058 6.616 Short Span 2.640 1.452 Short Span 24.695

Long Span 6.522 3.958 Long Span 1.010 0.981 Long Span 9.442

SHORT SPAN LONG SPAN

COL STRIP MID STRIP COL STRIP MID STRIP

Mu 24.695 10.264 9.442 6.318SUMMARY

d 149 149 137 137

b 1000 1000 1000 1000 SHORT SPAN Use 12 mm bars spaced at

R 1.236 0.514 0.559 0.374 LONG SPAN Use 12 mm bars spaced at

0.0031 0.0013 0.0014 0.0009

use ρ 0.0034 0.0034 0.0034 0.0034

As 503.865 503.865 463.285 463.285

4.455 4.455 4.096 4.096

s 224.460 224.460 244.120 244.120

350 350 350 350

use s 220 220 240 240

DESIGN OF TWO-WAY SLABSLAB 29

ROOFDECK

DIMENSIONS DESIGN LOADS (kPa) MOMENT COEFFICIENTS : CASE

Short Span 6.00 m Dead Load 2.348 DEAD LOAD

Long Span 7.75 m Weight of Slab 4.113 Col Strip

m 0.77 Total Dead Load 6.461 Short Span 0.067

n12

smax

ρreq

n12

smax

Page 6: Concrete Slab Design

t 175 mm Total Live Load 1.00 Long Span 0.024

DESIGN MOMENTS - DL (kNm) DESIGN MOMENTS - LL (kNm) TOTAL (kNm)

Col Strip Mid Strip Col Strip Mid Strip Col Strip

Short Span 15.598 6.287 Short Span 2.414 1.550 Short Span 22.580

Long Span 9.476 3.868 Long Span 1.467 0.928 Long Span 13.717

SHORT SPAN LONG SPAN

COL STRIP MID STRIP COL STRIP MID STRIP

Mu 22.580 10.025 13.717 6.126SUMMARY

d 149 149 137 137

b 1000 1000 1000 1000 SHORT SPAN Use 12 mm bars spaced at

R 1.130 0.502 0.812 0.363 LONG SPAN Use 12 mm bars spaced at

0.0028 0.0012 0.0020 0.0009

use ρ 0.0034 0.0034 0.0034 0.0034

As 503.865 503.865 463.285 463.285

4.455 4.455 4.096 4.096

s 224.460 224.460 244.120 244.120

350 350 350 350

use s 220 220 240 240

DESIGN OF TWO-WAY SLABSLAB 30

ROOFDECK

DIMENSIONS DESIGN LOADS (kPa) MOMENT COEFFICIENTS : CASE

Short Span 2.75 m Dead Load 2.348 DEAD LOAD

Long Span 5.50 m Weight of Slab 4.113 Col Strip

m 0.50 Total Dead Load 6.461 Short Span 0.089

t 175 mm Total Live Load 1.00 Long Span 0.014

DESIGN MOMENTS - DL (kNm) DESIGN MOMENTS - LL (kNm) TOTAL (kNm)

Col Strip Mid Strip Col Strip Mid Strip Col Strip

Short Span 4.348 2.736 Short Span 0.673 0.575 Short Span 6.295

Long Span 2.736 0.782 Long Span 0.424 0.151 Long Span 3.961

SHORT SPAN LONG SPAN

COL STRIP MID STRIP COL STRIP MID STRIP

Mu 6.295 4.203 3.961 1.180SUMMARY

d 149 149 137 137

ρreq

n12

smax

Page 7: Concrete Slab Design

b 1000 1000 1000 1000 SHORT SPAN Use 12 mm bars spaced at

R 0.315 0.210 0.234 0.070 LONG SPAN Use 12 mm bars spaced at

0.0008 0.0005 0.0006 0.0002

use ρ 0.0034 0.0034 0.0034 0.0034

As 503.865 503.865 463.285 463.285

4.455 4.455 4.096 4.096

s 224.460 224.460 244.120 244.120

350 350 350 350

use s 220 220 240 240

ρreq

n12

smax

Page 8: Concrete Slab Design

DESIGN OF TWO-WAY SLAB

MOMENT COEFFICIENTS : CASE 9 DIMENSIONS

DEAD LOAD LIVE LOAD Short Span 2.75 m

Col Strip Mid Strip Col Strip Mid Strip Long Span 4.00 m

0.086 0.037 Short Span 0.086 0.061 m 0.69

0.011 0.003 Long Span 0.011 0.006 t 175 mm

TOTAL (kNm) DESIGN PARAMETERS DESIGN MOMENTS - DL (kNm)

Col Strip Mid Strip f'c 28 MPa Col Strip Mid Strip

26.134 14.893 fy 414 MPa Short Span 3.396 2.003

10.465 4.613 0.0034 Long Span 2.868 1.085

0.0209

149 mm

137 mm SHORT SPAN

COL STRIP MID STRIP

SUMMARYMu 4.916 3.072

d 149 149

Use 12 mm bars spaced at 220 mm on center b 1000 1000

Use 12 mm bars spaced at 240 mm on center R 0.246 0.154

0.0006 0.0004

use ρ 0.0034 0.0034

As 503.865 503.865

4.455 4.455

s 224.460 224.460

350 350

use s 220 220

DESIGN OF TWO-WAY SLAB

MOMENT COEFFICIENTS : CASE 2 DIMENSIONS

DEAD LOAD LIVE LOAD Short Span 2.75 m

Col Strip Mid Strip Col Strip Mid Strip Long Span 5.00 m

0.062 0.025 Short Span 0.062 0.038 m 0.55

0.030 0.012 Long Span 0.030 0.018 t 175 mm

TOTAL (kNm) DESIGN PARAMETERS DESIGN MOMENTS - DL (kNm)

Col Strip Mid Strip f'c 28 MPa Col Strip Mid Strip

14.419 6.314 fy 414 MPa Short Span 4.153 2.541

ρmin

ρmax

ds

dL

ρreq

n12

smax

Page 9: Concrete Slab Design

9.989 4.312 0.0034 Long Span 2.261 0.808

0.0209

149 mm

137 mm SHORT SPAN

COL STRIP MID STRIP

SUMMARYMu 6.012 3.896

d 149 149

Use 12 mm bars spaced at 220 mm on center b 1000 1000

Use 12 mm bars spaced at 240 mm on center R 0.301 0.195

0.0007 0.0005

use ρ 0.0034 0.0034

As 503.865 503.865

4.455 4.455

s 224.460 224.460

350 350

use s 220 220

DESIGN OF TWO-WAY SLAB

MOMENT COEFFICIENTS : CASE 2 DIMENSIONS

DEAD LOAD LIVE LOAD Short Span 5.50 m

Col Strip Mid Strip Col Strip Mid Strip Long Span 6.00 m

0.053 0.021 Short Span 0.053 0.033 m 0.92

0.038 0.015 Long Span 0.038 0.023 t 175 mm

TOTAL (kNm) DESIGN PARAMETERS DESIGN MOMENTS - DL (kNm)

Col Strip Mid Strip f'c 28 MPa Col Strip Mid Strip

15.089 6.584 fy 414 MPa Short Span 10.423 4.169

12.907 5.418 0.0034 Long Span 8.915 3.411

0.0209

149 mm

137 mm SHORT SPAN

COL STRIP MID STRIP

SUMMARYMu 24.898 12.592

d 149 149

Use 12 mm bars spaced at 220 mm on center b 1000 1000

Use 12 mm bars spaced at 240 mm on center R 1.246 0.630

0.0031 0.0015

use ρ 0.0034 0.0034

As 503.865 503.865

ρmin

ρmax

ds

dL

ρreq

n12

smax

ρmin

ρmax

ds

dL

ρreq

Page 10: Concrete Slab Design

4.455 4.455

s 224.460 224.460

350.000 350.000

use s 220 220

DESIGN OF TWO-WAY SLAB

MOMENT COEFFICIENTS : CASE 9 DIMENSIONS

DEAD LOAD LIVE LOAD Short Span 6.00 m

Col Strip Mid Strip Col Strip Mid Strip Long Span 7.25 m

0.073 0.028 Short Span 0.073 0.040 m 0.83

0.019 0.012 Long Span 0.019 0.019 t 175 mm

TOTAL (kNm) DESIGN PARAMETERS DESIGN MOMENTS - DL (kNm)

Col Strip Mid Strip f'c 28 MPa Col Strip Mid Strip

24.695 10.264 fy 414 MPa Short Span 14.476 5.790

9.442 6.318 0.0034 Long Span 9.918 3.923

0.0209

149 mm

137 mm SHORT SPAN

COL STRIP MID STRIP

SUMMARYMu 34.580 17.674

d 149 149

Use 12 mm bars spaced at 220 mm on center b 1000 1000

Use 12 mm bars spaced at 240 mm on center R 1.731 0.885

0.0043 0.0022

use ρ 0.0043 0.0034

As 647.321 503.865

5.724 4.455

s 174.716 224.460

350.000 350.000

use s 170 220

DESIGN OF TWO-WAY SLAB

MOMENT COEFFICIENTS : CASE 2 DIMENSIONS

DEAD LOAD LIVE LOAD Short Span 6.00 m

Col Strip Mid Strip Col Strip Mid Strip Long Span 7.75 m

0.067 0.027 Short Span 0.067 0.043 m 0.77

n12

smax

ρmin

ρmax

ds

dL

ρreq

n12

smax

Page 11: Concrete Slab Design

0.024 0.010 Long Span 0.024 0.015 t 175 mm

TOTAL (kNm) DESIGN PARAMETERS DESIGN MOMENTS - DL (kNm)

Col Strip Mid Strip f'c 28 MPa Col Strip Mid Strip

22.580 10.025 fy 414 MPa Short Span 15.598 6.287

13.717 6.126 0.0034 Long Span 9.476 3.868

0.0209

149 mm

137 mm SHORT SPAN

COL STRIP MID STRIP

SUMMARYMu 37.259 19.451

d 149 149

Use 12 mm bars spaced at 220 mm on center b 1000 1000

Use 12 mm bars spaced at 240 mm on center R 1.865 0.973

0.0047 0.0024

use ρ 0.0047 0.0034

As 699.706 503.865

6.187 4.455

s 161.635 224.460

350.000 350.000

use s 160 220

MOMENT COEFFICIENTS : CASE 8

DEAD LOAD LIVE LOAD

Col Strip Mid Strip Col Strip Mid Strip

0.089 0.056 Short Span 0.089 0.076

0.014 0.004 Long Span 0.014 0.005

TOTAL (kNm) DESIGN PARAMETERS

Col Strip Mid Strip f'c 28 MPa

6.295 4.203 fy 414 MPa

3.961 1.180 0.0034

0.0209

149 mm

137 mm

SUMMARY

ρmin

ρmax

ds

dL

ρreq

n12

smax

ρmin

ρmax

ds

dL

Page 12: Concrete Slab Design

Use 12 mm bars spaced at 220 mm on center

Use 12 mm bars spaced at 240 mm on center

Page 13: Concrete Slab Design

DESIGN OF TWO-WAY SLABSLAB 31

ROOFDECK

DIMENSIONS DESIGN LOADS (kPa) MOMENT COEFFICIENTS : CASE 8

2.75 m Dead Load 2.348 DEAD LOAD LIVE LOAD

4.00 m Weight of Slab 4.113 Col Strip Mid Strip Col Strip Mid Strip

0.69 Total Dead Load 6.461 Short Span 0.069 0.041 Short Span 0.069 0.055

175 mm Total Live Load 1.00 Long Span 0.028 0.010 Long Span 0.028 0.013

DESIGN MOMENTS - DL (kNm) DESIGN MOMENTS - LL (kNm) TOTAL (kNm) DESIGN PARAMETERS

Mid Strip Col Strip Mid Strip Col Strip Mid Strip f'c 28 MPa

2.003 Short Span 0.526 0.418 Short Span 4.916 3.072 fy 414 MPa

1.085 Long Span 0.444 0.212 Long Span 4.153 1.642 0.0034

0.0209

149 mm

LONG SPAN 137 mm

COL STRIP MID STRIP

4.153 1.642SUMMARY

137 137

1000 1000 SHORT SPAN Use 12 mm bars spaced at 220 mm on center

0.246 0.097 LONG SPAN Use 12 mm bars spaced at 240 mm on center

0.0006 0.0002

0.0034 0.0034

463.285 463.285

4.096 4.096

244.120 244.120

350 350

240 240

DESIGN OF TWO-WAY SLABSLAB 32

ROOFDECK

DIMENSIONS DESIGN LOADS (kPa) MOMENT COEFFICIENTS : CASE 8

2.75 m Dead Load 2.348 DEAD LOAD LIVE LOAD

5.00 m Weight of Slab 4.113 Col Strip Mid Strip Col Strip Mid Strip

0.55 Total Dead Load 6.461 Short Span 0.085 0.052 Short Span 0.085 0.070

175 mm Total Live Load 1.00 Long Span 0.014 0.005 Long Span 0.014 0.007

DESIGN MOMENTS - DL (kNm) DESIGN MOMENTS - LL (kNm) TOTAL (kNm) DESIGN PARAMETERS

Mid Strip Col Strip Mid Strip Col Strip Mid Strip f'c 28 MPa

2.541 Short Span 0.643 0.529 Short Span 6.012 3.896 fy 414 MPa

ρmin

ρmax

ds

dL

Page 14: Concrete Slab Design

0.808 Long Span 0.350 0.175 Long Span 3.273 1.249 0.0034

0.0209

149 mm

LONG SPAN 137 mm

COL STRIP MID STRIP

3.273 1.249SUMMARY

137 137

1000 1000 SHORT SPAN Use 12 mm bars spaced at 220 mm on center

0.194 0.074 LONG SPAN Use 12 mm bars spaced at 240 mm on center

0.0005 0.0002

0.0034 0.0034

463.285 463.285

4.096 4.096

244.120 244.120

350 350

240 240

DESIGN OF TWO-WAY SLABSLAB 8

GROUND, 2ND FLOOR, 3RD FLOOR

DIMENSIONS DESIGN LOADS (kPa) MOMENT COEFFICIENTS : CASE 2

5.50 m Dead Load 2.348 DEAD LOAD LIVE LOAD

6.00 m Weight of Slab 4.113 Col Strip Mid Strip Col Strip Mid Strip

0.92 Total Dead Load 6.461 Short Span 0.053 0.021 Short Span 0.053 0.033

175 mm Total Live Load 4.80 Long Span 0.038 0.015 Long Span 0.038 0.023

DESIGN MOMENTS - DL (kNm) DESIGN MOMENTS - LL (kNm) TOTAL (kNm) DESIGN PARAMETERS

Mid Strip Col Strip Mid Strip Col Strip Mid Strip f'c 28 MPa

4.169 Short Span 7.744 4.743 Short Span 24.898 12.592 fy 414 MPa

3.411 Long Span 6.624 3.974 Long Span 21.297 10.452 0.0034

0.0209

149 mm

LONG SPAN 137 mm

COL STRIP MID STRIP

21.297 10.452SUMMARY

137 137

1000 1000 SHORT SPAN Use 12 mm bars spaced at 220 mm on center

1.261 0.619 LONG SPAN Use 12 mm bars spaced at 240 mm on center

0.0031 0.0015

0.0034 0.0034

463.285 463.285

ρmin

ρmax

ds

dL

ρmin

ρmax

ds

dL

Page 15: Concrete Slab Design

4.096 4.096

244.120 244.120

350.000 350.000

240 240

DESIGN OF TWO-WAY SLABSLAB 9

GROUND, 2ND FLOOR, 3RD FLOOR

DIMENSIONS DESIGN LOADS (kPa) MOMENT COEFFICIENTS : CASE 2

6.00 m Dead Load 2.348 DEAD LOAD LIVE LOAD

7.25 m Weight of Slab 4.113 Col Strip Mid Strip Col Strip Mid Strip

0.83 Total Dead Load 6.461 Short Span 0.062 0.025 Short Span 0.062 0.039

175 mm Total Live Load 4.80 Long Span 0.029 0.012 Long Span 0.029 0.018

DESIGN MOMENTS - DL (kNm) DESIGN MOMENTS - LL (kNm) TOTAL (kNm) DESIGN PARAMETERS

Mid Strip Col Strip Mid Strip Col Strip Mid Strip f'c 28 MPa

5.790 Short Span 10.755 6.703 Short Span 34.580 17.674 fy 414 MPa

3.923 Long Span 7.369 4.567 Long Span 23.692 12.015 0.0034

0.0209

149 mm

LONG SPAN 137 mm

COL STRIP MID STRIP

23.692 12.015SUMMARY

137 137

1000 1000 SHORT SPAN Use 12 mm bars spaced at 170 mm on center

1.403 0.711 LONG SPAN Use 12 mm bars spaced at 230 mm on center

0.0035 0.0017

0.0035 0.0034

478.674 463.285

4.232 4.096

236.272 244.120

350.000 350.000

230 240

DESIGN OF TWO-WAY SLABSLAB 10

GROUND, 2ND FLOOR, 3RD FLOOR

DIMENSIONS DESIGN LOADS (kPa) MOMENT COEFFICIENTS : CASE 2

6.00 m Dead Load 2.348 DEAD LOAD LIVE LOAD

7.75 m Weight of Slab 4.113 Col Strip Mid Strip Col Strip Mid Strip

0.77 Total Dead Load 6.461 Short Span 0.067 0.027 Short Span 0.067 0.043

ρmin

ρmax

ds

dL

Page 16: Concrete Slab Design

175 mm Total Live Load 4.80 Long Span 0.024 0.010 Long Span 0.024 0.015

DESIGN MOMENTS - DL (kNm) DESIGN MOMENTS - LL (kNm) TOTAL (kNm) DESIGN PARAMETERS

Mid Strip Col Strip Mid Strip Col Strip Mid Strip f'c 28 MPa

6.287 Short Span 11.589 7.442 Short Span 37.259 19.451 fy 414 MPa

3.868 Long Span 7.040 4.455 Long Span 22.635 11.769 0.0034

0.0209

149 mm

LONG SPAN 137 mm

COL STRIP MID STRIP

22.635 11.769SUMMARY

137 137

1000 1000 SHORT SPAN Use 12 mm bars spaced at 160 mm on center

1.340 0.697 LONG SPAN Use 12 mm bars spaced at 240 mm on center

0.0033 0.0017

0.0034 0.0034

463.285 463.285

4.096 4.096

244.120 244.120

350.000 350.000

240 240

ρmin

ρmax

ds

dL

Page 17: Concrete Slab Design

8

LIVE LOAD

Mid Strip

0.055

0.013

DESIGN PARAMETERS

28 MPa

414 MPa

0.0034

0.0209

149 mm

137 mm

SUMMARY

8

LIVE LOAD

Mid Strip

0.070

0.007

DESIGN PARAMETERS

28 MPa

414 MPa

Page 18: Concrete Slab Design

0.0034

0.0209

149 mm

137 mm

SUMMARY

2

LIVE LOAD

Mid Strip

0.033

0.023

DESIGN PARAMETERS

28 MPa

414 MPa

0.0034

0.0209

149 mm

137 mm

SUMMARY

Page 19: Concrete Slab Design

2

LIVE LOAD

Mid Strip

0.039

0.018

DESIGN PARAMETERS

28 MPa

414 MPa

0.0034

0.0209

149 mm

137 mm

SUMMARY

2

LIVE LOAD

Mid Strip

0.043

Page 20: Concrete Slab Design

0.015

DESIGN PARAMETERS

28 MPa

414 MPa

0.0034

0.0209

149 mm

137 mm

SUMMARY

Page 21: Concrete Slab Design

MOMENT COEFFICIENTS DEAD LOADSCASE 1 CASE 2 CASE 3 CASE 4 CASE 5 CASE 6

m S L S L S L S L S L S1.00 0.036 0.036 0.018 0.018 0.018 0.027 0.027 0.027 0.027 0.018 0.0330.95 0.040 0.033 0.020 0.016 0.021 0.025 0.030 0.024 0.028 0.015 0.0360.90 0.045 0.029 0.022 0.014 0.025 0.024 0.033 0.022 0.029 0.013 0.0390.85 0.050 0.026 0.024 0.012 0.029 0.022 0.036 0.019 0.031 0.011 0.0420.80 0.056 0.023 0.026 0.011 0.034 0.020 0.039 0.016 0.032 0.009 0.0450.75 0.061 0.019 0.028 0.009 0.040 0.018 0.043 0.013 0.033 0.007 0.0480.70 0.068 0.016 0.030 0.007 0.046 0.016 0.046 0.011 0.035 0.005 0.0510.65 0.074 0.013 0.032 0.006 0.054 14.000 0.050 0.009 0.036 0.004 0.0540.60 0.081 0.010 0.034 0.004 0.062 0.011 0.053 0.007 0.037 0.003 0.0560.55 0.088 0.008 0.035 0.003 0.071 0.009 0.056 0.005 0.038 0.002 0.0580.50 0.095 0.006 0.037 0.002 0.080 0.007 0.059 0.004 0.039 0.001 0.061

MOMENT COEFFICIENTS LIVE LOADSCASE 1 CASE 2 CASE 3 CASE 4 CASE 5 CASE 6

m S L S L S L S L S L S1.00 36.000 36.000 27.000 27.000 27.000 32.000 32.000 32.000 32.000 27.000 35.0000.95 40.000 33.000 30.000 25.000 31.000 29.000 35.000 29.000 34.000 24.000 38.0000.90 45.000 29.000 34.000 22.000 35.000 27.000 39.000 26.000 37.000 21.000 42.0000.85 50.000 26.000 37.000 19.000 40.000 24.000 43.000 23.000 41.000 19.000 46.0000.80 56.000 23.000 41.000 17.000 45.000 22.000 48.000 20.000 44.000 16.000 51.0000.75 61.000 19.000 45.000 14.000 51.000 19.000 52.000 16.000 47.000 13.000 55.0000.70 68.000 16.000 49.000 12.000 57.000 16.000 57.000 14.000 51.000 11.000 60.0000.65 74.000 13.000 53.000 10.000 64.000 14.000 62.000 11.000 55.000 9.000 64.0000.60 81.000 10.000 58.000 7.000 71.000 11.000 67.000 9.000 59.000 7.000 68.0000.55 88.000 8.000 62.000 6.000 80.000 9.000 72.000 7.000 63.000 5.000 73.0000.50 95.000 6.000 66.000 4.000 88.000 7.000 77.000 5.000 67.000 4.000 78.000

MOMENT COEFFICIENTS NEGATIVE LOADSCASE 1 CASE 2 CASE 3 CASE 4 CASE 5 CASE 6

m S L S L S L S L S L S1.00 0.000 0.000 45.000 45.000 0.000 76.000 50.000 50.000 75.000 0.000 71.0000.95 0.000 0.000 50.000 41.000 0.000 72.000 55.000 45.000 79.000 0.000 75.0000.90 0.000 0.000 55.000 37.000 0.000 70.000 60.000 40.000 80.000 0.000 79.0000.85 0.000 0.000 60.000 31.000 0.000 65.000 66.000 34.000 82.000 0.000 83.0000.80 0.000 0.000 65.000 27.000 0.000 61.000 71.000 29.000 83.000 0.000 86.0000.75 0.000 0.000 69.000 22.000 0.000 56.000 76.000 24.000 85.000 0.000 88.0000.70 0.000 0.000 74.000 17.000 0.000 50.000 81.000 19.000 86.000 0.000 91.0000.65 0.000 0.000 77.000 14.000 0.000 43.000 85.000 15.000 87.000 0.000 93.0000.60 0.000 0.000 81.000 0.000 0.000 35.000 89.000 10.000 88.000 0.000 95.0000.55 0.000 0.000 84.000 7.000 0.000 28.000 92.000 8.000 89.000 0.000 96.0000.50 0.000 0.000 86.000 0.000 0.000 22.000 94.000 6.000 90.000 0.000 97.000

.

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MOMENT COEFFICIENTS DEAD LOADSCASE 6 CASE 7 CASE 8 CASE 9

L S L S L S L0.027 0.027 0.033 0.020 0.023 0.023 0.0200.024 0.031 0.031 0.022 0.021 0.024 0.0170.021 0.035 0.028 0.025 0.019 0.026 0.0150.017 0.040 0.025 0.029 0.017 0.028 0.0130.015 0.045 0.022 0.032 0.015 0.029 0.0100.012 0.051 0.020 0.036 0.013 0.031 0.0070.009 0.058 0.017 0.040 0.011 0.033 0.0060.007 0.065 0.014 0.044 0.009 0.034 0.0050.006 0.073 0.012 0.048 0.007 0.036 0.0040.004 0.081 0.009 0.052 0.005 0.037 0.0030.003 0.089 0.007 0.056 0.004 0.038 0.002

MOMENT COEFFICIENTS LIVE LOADSCASE 6 CASE 7 CASE 8 CASE 9

L S L S L S L32.000 32.000 35.000 28.000 30.000 30.000 28.00029.000 36.000 32.000 31.000 27.000 32.000 25.00025.000 40.000 29.000 35.000 24.000 36.000 22.00022.000 45.000 26.000 40.000 22.000 39.000 20.00019.000 51.000 23.000 44.000 19.000 42.000 17.00016.000 56.000 20.000 49.000 16.000 46.000 13.00013.000 63.000 17.000 54.000 14.000 50.000 11.00010.000 70.000 14.000 59.000 11.000 54.000 9.0008.000 77.000 11.000 65.000 9.000 59.000 7.0006.000 85.000 9.000 70.000 7.000 63.000 6.0005.000 92.000 7.000 76.000 5.000 67.000 4.000

MOMENT COEFFICIENTS NEGATIVE LOADSCASE 6 CASE 7 CASE 8 CASE 9

L S L S L S L0.000 0.000 71.000 33.000 61.000 61.000 33.0000.000 0.000 67.000 38.000 56.000 65.000 29.0000.000 0.000 62.000 43.000 52.000 68.000 25.0000.000 0.000 57.000 49.000 46.000 72.000 21.0000.000 0.000 51.000 61.000 41.000 75.000 17.0000.000 0.000 44.000 61.000 36.000 75.000 14.0000.000 0.000 38.000 68.000 29.000 81.000 11.0000.000 0.000 31.000 74.000 24.000 83.000 8.0000.000 0.000 0.000 80.000 24.000 85.000 18.0000.000 0.000 19.000 85.000 14.000 86.000 5.0000.000 0.000 0.000 89.000 14.000 88.000 10.000

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0.50 0.60 0.70 0.80 0.90 1.000.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

0.080

0.090

0.100

Short Span POSITIVE DL

CASE 1 CASE 2 CASE 3 CASE 4CASE 5 CASE 6 CASE 7 CASE 8CASE 9

m = S / L

Page 24: Concrete Slab Design

0.50 0.60 0.70 0.80 0.90 1.000.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

0.080

0.090

0.100

Short Span POSITIVE DL

CASE 1 CASE 2 CASE 3 CASE 4CASE 5 CASE 6 CASE 7 CASE 8CASE 9

m = S / L