7/29/2019 Slab Design Original

1/4

Sheet No.

Project : Type of panel

Location : Typ. Floor (Unit Type B3) 1. Interior panels

Marking : S4 2. One short edge discontinuousThickness : 250 mm Panel Type = 8 3. One long edge discontinuous

4. Two adjacent edges discontinuous

Material Dimension 5. Two short edges discontinuous

fcu = 30 N/mm2 Short span,Lx = 8100 mm 6. Two long edges discontinuous

fy = 460 N/mm

Long span, Ly = 10400 mm 7. Three edges discontinuous (one long edge continuous)

Cover = 20 mm Ratio, Ly / Lx = 1.28 8. Three edges discontinuous (one short edge continuous)

Fire rate = 1 Hour(s) 9. Four edges discontinuous

Bar size = 12 mm 10. One-way slab

Loading

Finishes = 50 mm DL = 9.70 kN/m2

Services = 0.0 kN/m2

LL = 1.50 kN/m2

Others = 2.5 kN/m2

Up-lift pressure (UL) Design load (1.4DL+1.6LL)

= 0 kN/m2

n = 15.98 kN/m2

Short span (Lx) Long span

Support Mid Span Support Mid Span

Bending moment coefficient,Mcoef. 0.070 0.058 0.044

M = Mcoef.*n*lx2 73.09 60.81 46.13

Slab Thickness, D 250 250 250

Effective depth, d 224.0 224.0 218.0

K = M/(1000*d2*fcu) 0.0486 0.0404 0.0324

La = (0.5+SQR(0.25-K/0.9)) 0.94 0.95 0.95

Z = La*d 211 213 207

Asreq = M/(0.87*fy*Z) - mm2/m 865 714 557

Rebar size and spacing required T 12 @ 131 T 12 @ 158 T 12 @ 203

Rebar size and spacing provided 100 T 12 @ 100 T 12 @ 100 T 12 @ 100

Area of reinf't provided (mm2/m) 1131 1131 1131

Percentage of reinf't provided (%) 0.51% 0.51% 0.52%

Deflection check

Basic span / effective depth ratio = 26 (Table 3.10)

M/bd2

(at mis span of shorter span) = 1.46Design services stress, fs = 219.77 N/mm

2

Modification factor (Tension reinf't) = 1.46 (Table 3.11)

Allowable span / d ratio = 37.95

Actual span / d ratio = 36.16 Deflection is satisfactory

Crack control (clause 3.12.11.2.7)

i. ) Bar spacing

Clear spacing between bars = 86.8 mm < 3d, ok!

ii. ) Other conditions

a.) for fy= 460 N/mm2, h

7/29/2019 Slab Design Original

2/4

Sheet No.

Project : Type of panel

Location : Typ. Floor (Unit Type B3) 1. Interior panels

Marking : S4 2. One short edge discontinuousThickness : 150 mm Panel Type = 4 3. One long edge discontinuous

4. Two adjacent edges discontinuous

Material Dimension 5. Two short edges discontinuous

fcu = 30 N/mm2 Short span,Lx = 5500 mm 6. Two long edges discontinuous

fy = 460 N/mm

Long span, Ly = 6550 mm 7. Three edges discontinuous (one long edge continuous)

Cover = 20 mm Ratio, Ly / Lx = 1.19 8. Three edges discontinuous (one short edge continuous)

Fire rate = 1 Hour(s) 9. Four edges discontinuous

Bar size = 9 mm 10. One-way slab

Loading

Finishes = 50 mm DL = 7.80 kN/m2

Services = 0.0 kN/m2

LL = 1.50 kN/m2

Others = 3.0 kN/m2

Up-lift pressure (UL) Design load (1.4DL+1.6LL)= 0 kN/m

2n = 13.32 kN/m

2

Short span (Lx) Long span

Support Mid Span Support Mid Span

Bending moment coefficient,Mcoef. 0.062 0.047 0.045 0.034

M = Mcoef.*n*lx2 25.13 18.75 18.13 13.70

Slab Thickness, D 150 150 150 150

Effective depth, d 125.5 125.5 125.5 121.0

K = M/(1000*d2*fcu) 0.0532 0.0397 0.0384 0.0312

La = (0.5+SQR(0.25-K/0.9)) 0.94 0.95 0.95 0.95

Z = La*d 118 119 119 115

Asreq = M/(0.87*fy*Z) - mm2/m 534 393 380 298

Rebar size and spacing required T 9 @ 119 T 9 @ 162 T 9 @ 167 T 9 @ 214

Rebar size and spacing provided T 9 @ 100 T 9 @ 100 T 9 @ 100 T 9 @ 100

Area of reinf't provided (mm2/m) 636 636 636 636

Percentage of reinf't provided (%) 0.51% 0.51% 0.51% 0.53%

Deflection check

Basic span / effective depth ratio = 26 (Table 3.10)

M/bd

2

(at mis span of shorter span) = 1.19Design services stress, fs = 177.56 N/mm

2

Modification factor (Tension reinf't) = 1.74 (Table 3.11)

Allowable span / d ratio = 45.33

Actual span / d ratio = 43.82 Deflection is satisfactory

Crack control (clause 3.12.11.2.7)

i. ) Bar spacing

Clear spacing between bars = 90.1 mm < 3d, ok!

ii. ) Other conditions

a.) for fy= 460 N/mm2, h

7/29/2019 Slab Design Original

3/4

Sheet No.

Project : Type of panel

Location : Typ. Floor (Unit Type B3) 1. Interior panels

Marking : S4 2. One short edge discontinuousThickness : 150 mm Panel Type = 10 3. One long edge discontinuous

4. Two adjacent edges discontinuous

Material Dimension 5. Two short edges discontinuous

fcu = 30 N/mm2 Short span,Lx = 3550 mm 6. Two long edges discontinuous

fy = 460 N/mm

Long span, Ly = 11200 mm 7. Three edges discontinuous (one long edge continuous)

Cover = 20 mm Ratio, Ly / Lx = 3.15 8. Three edges discontinuous (one short edge continuous)

Fire rate = 1 Hour(s) Design as one-way slab (Panel type = 10) 9. Four edges discontinuous

Bar size = 8 mm 10. One-way slab

Loading

Finishes = 50 mm DL = 7.80 kN/m2

Services = 0.5 kN/m2

LL = 1.50 kN/m2

Others = 2.5 kN/m2

Up-lift pressure (UL) Design load (1.4DL+1.6LL)

= 0 kN/m2

n = 13.32 kN/m2

Short span (Lx)

Support Mid Span

0.125

M=n*Lx^2/8 20.98

Slab Thickness, D 150

Effective depth, d 126.0

K = M/(1000*d2*fcu) 0.0441

La = (0.5+SQR(0.25-K/0.9)) 0.95

Z = La*d 119

Asreq = M/(0.87*fy*Z) - mm2/m 439

Rebar size and spacing required T 8 @ 115

Rebar size and spacing provided 100 T 8 @ 100 100 100

Area of reinf't provided (mm2/m) 503

Percentage of reinf't provided (%) 0.40%

Deflection check

Basic span / effective depth ratio = 20 (Table 3.10)

M/bd2

(at mis span of shorter span) = 1.32Design services stress, fs = 250.86 N/mm

2As' provided = %

Modification factor (Tension reinf't) = 1.40 (Table 3.11) M.F. (Comp. bar) = 1.00 (Table 3.12)

Allowable span / d ratio = 27.96

Actual span / d ratio = 28.17 Deflection fail

Crack control (clause 3.12.11.2.7)

i. ) Bar spacing

Clear spacing between bars = 91.2 mm < 3d, ok!

ii. ) Other conditions

a.) for fy= 460 N/mm2, h

7/29/2019 Slab Design Original

4/4

Sheet No.

Project : Type of panel

Location : 1. Interior panels

Marking : ST1 2. One short edge discontinuousThickness : 150 mm Panel Type = 5 3. One long edge discontinuous

4. Two adjacent edges discontinuous

Material Dimension 5. Two short edges discontinuous

fcu = 30 N/mm

Short span,Lx = 4450 mm 6. Two long edges discontinuousfy = 460 N/mm

Long span, Ly = 8250 mm 7. Three edges discontinuous (one long edge continuous)

Cover = 20 mm Ratio, Ly / Lx = 1.85 8. Three edges discontinuous (one short edge continuous)

Fire rate = 1 Hour(s) 9. Four edges discontinuous

Bar size = 10 mm 10. One-way slab

Loading

Finishes = 50 mm DL = 4.80 kN/m2

Services = 0.0 kN/m2

LL = 1.50 kN/m2

Others = 0.0 kN/m2

Up-lift pressure (UL) Design load (1.4DL+1.6LL)

= 0 kN/m2

n = 9.12 kN/m2

Short span (Lx) Long span

Support Mid Span Support Mid Span

Bending moment coefficient,Mcoef. 0.068 0.051 0.034

M = Mcoef.*n*lx2 12.33 9.26 6.14

Slab Thickness, D 150 150 150

Effective depth, d 125.0 125.0 120.0

K = M/(1000*d2*fcu) 0.0263 0.0197 0.0142

La = (0.5+SQR(0.25-K/0.9)) 0.95 0.95 0.95

Z = La*d 119 119 114

Asreq = M/(0.87*fy*Z) - mm2/m 259 195 156

Rebar size and spacing required T 10 @ 303 T 10 @ 403 T 10 @ 504

Rebar size and spacing provided T 10 @ 100 T 10 @ 100 200 T 10 @ 200

Area of reinf't provided (mm2/m) 786 786 393

Percentage of reinf't provided (%) 0.63% 0.63% 0.33%

Deflection check

Basic span / effective depth ratio = 26 (Table 3.10)

M/bd2

(at mis span of shorter span) = 0.59Design services stress, fs = 71.26 N/mm

2

Modification factor (Tension reinf't) = 2.00 (Table 3.11)

Allowable span / d ratio = 52.00

Actual span / d ratio = 35.60 Deflection is satisfactory

Crack control (clause 3.12.11.2.7)

i. ) Bar spacing

Clear spacing between bars = 89 mm < 3d, ok!

ii. ) Other conditions

a.) for fy= 460 N/mm2, h