rc 2way slab ddm final

8/11/2019 Rc 2way Slab Ddm Final

1/68

DATE

PREPARED

CHECKED

unit wt. concrete 24 kN/m^3 additional dead load 50 kN/m^2 main rebar yield strength 276 Mpa total dead load(incl slab wt) 53.53 kN/m^2

temp. rebar yield strength 276 Mpa occupancy type manufacturingconcrete comp. strength 21 Mpa total live load 6.00 kN/m^2

minimum slab thk 63 mm LL < 3xDL :. okmaximum slab thk 108 mm ultimate load, wu 85.14 kN/m^2

use slab thk 150 mmWIDTH,mm HEIGHT,mm

panel width L1 3000 mm beam along AB 250 400panel width L2 3900 mm beam along CD 250 400

long/short


2/68

TOP BARS LAYOUT

@130mm oc12mm

@180mm oc

@130mm oc

@180mm oc

@130mm oc

12mm

12mm

BOTTOM BARS LAYOUT

@300mm oc

10mm @130mm oc

10mm @130mm oc

10mm @130mm oc 10mm @65mm oc

12mm

(temp and shrikage bars)

12mm

12mm

(temp and shrinkage bars)

@180mm oc

12mm

@130mm oc

12mm @180mm oc

12mm

12mm

10mm @130mm oc

16mm @115mm oc

@130mm oc

@180mm oc

@300mm oc

12mm

12mm

@180mm oc

12mm

12mm @130mm oc

750 750

750 750

975

975

750 7501500

2400

975

975

2400

750 7501500

column strip column stripmiddle strip

c o l u m n s t r i p


m i d d l e s t r i p

L1/4 L1/4

column strip column stripmiddle strip


c o

l u m n s t r i p

m i d d l e s t r i p


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(1)

(2)

(3)

(4)

(5)

(6)

(discontinuous edge)






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COMPUTATION db d As reqd n n used s actualMu: 22.10 kN-m Beta1 0.850 8 114 858 17.1 18 905fy : 276.0 mPA Rn 1.957 10 113 0.21931274 851 10.8 11 864fc : 21.0 mPA m 15.462 12 112 0.88356509 843 7.5 8 905

width, b : 1000 mm rho 0.00753 16 110 0.11643491 828 4.1 5 1005height, h : 150 mm rhomin 0.0051 20 108 0.0075303 813 2.6 3 942

ds : 12 mm rhomax 0.028 25 106 794 1.6 2 982min cover : 20 mm 28 104 783 1.3 2 1232

16.00 rho 1 0.0075 32 102 768 1.0 2 1608db : 12 mm 36 100 753 0.7 2 2036

effective d : 112 mm rho used 0.0075 RESULTS :

rebar details As reqd : 843.39 mm^2 use 8 12

n : 7.46

n used : 8 beam diagram

As actual : 904.78 mm^2clear spacing 120.00 mm bar spacing OK( > 25mm)spacing o.c. 132.00 mm

width,b = 1000

REMARKS :




16.00 rho 1 0.0150 32 102 768 1.0 2 1608

db : 16 mm 36 100 753 0.7 2 2036effective d : 110 mm rho used 0.0150

RESULTS :

rebar details As reqd : 1644.68 mm^2 use

n : 8.18

n used : 9 beam diagram As actual : 1809.56 mm^2

clear spacing 99.00 mm bar spacing OK( > 25mm)

DATA

O

DATA

O

- mm r

175

- mm r


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spacing o.c. 115.00 mm122.25

width,b = 1000

REMARKS :


width, b : 1000 mm rho 0.008 16 110 0.11643491 828 4.1 5 1005

height, h : 150 mm rhomin 0.0051 20 108 0.0075303 813 2.6 3 942ds : 12 mm rhomax 0.028 25 106 794 1.6 2 982

min cover : 20 mm 28 104 783 1.3 2 123216.00 rho 1 0.0075 32 102 768 1.0 2 1608

db : 12 mm 36 100 753 0.7 2 2036



n : 7.46


clear spacing 120.00 mm bar spacing OK( > 25mm)spacing o.c. 132.00 mm

134.10

width,b = 1000

REMARKS :

COMPUTATION db d As reqd n n used s actualMu: 12.47 kN-m Beta1 0.850 8 114 858 17.1 18 905fy : 276.0 mPA Rn 1.104 10 113 0.1237433 851 10.8 11 864

O

DATA

DATA

175

- mm r

175


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fc : 21.0 mPA m 15.462 12 112 0.93608584 843 7.5 8 905width, b : 1000 mm rho 0.004 16 110 0.06391416 828 4.1 5 1005


min cover : 20 mm 28 104 783 1.3 2 123216.00 rho 1 0.0051 32 102 768 1.0 2 1608

db :12

mm 36 100 753 0.7 2 2036



n : 5.02



width,b = 1000

REMARKS :

COMPUTATION db d As reqd n n used s actualMu: 29.15 kN-m Beta1 0.850 8 114 858 17.1 18 905

fy : 276.0 mPA Rn 2.537 10 113 0.28423148 851 10.8 11 864fc : 21.0 mPA m 15.462 12 112 0.84603104 843 7.5 8 905



16.00 rho 1 0.0100 32 102 768 1.0 2 1608db : 10 mm 36 100 753 0.7 2 2036



n : 14.33



O

DATA

O

- mm r

175

- mm r

175


9/68

width,b = 1000

REMARKS :




16.00 rho 1 0.0051 32 102 768 1.0 2 1608db : 12 mm 36 100 753 0.7 2 2036



n : 5.02



spacing o.c. 184.80 mm

width,b = 1000

REMARKS :

DATA

O- mm r

175


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ratio clear space AB1.0540 46.59 OK 0.1251.0153 82.60 OK1.0728 120.00 OK1.2137 214.00 OK1.1589 438.00 OK 11.25 411.2358 886.00 OK 11.052632 241.5725 880.00 OK2.0941 872.00 OK2.7034 864.00 OK

OK1.7190476 13.44 8.064 6.2003968

130 57.5144.92754

1.428571435 24.137931

2.62

height,h = 150

3.03

y x

ratio clear space1.0540 46.59 OK 0.1251.0153 82.60 OK1.0728 120.00 OK1.2137 214.00 OK1.1589 438.00 OK 11.25 411.2358 886.00 OK 11.052632 241.5725 880.00 OK2.0941 872.00 OK

2.7034 864.00 OKOK

1.7190476 13.44 8.064 6.2003968

57.5144.92754

1.4285714

ebars @ mm O.C.

ebarsmm O.C.


11/68

35 24.1379312.62

height,h = 150

3.03

y x

ratio clear space1.0540 46.59 OK 0.1251.0153 82.60 OK1.0728 120.00 OK1.2137 214.00 OK1.1589 438.00 OK 11.25 411.2358 886.00 OK 11.052632 241.5725 880.00 OK2.0941 872.00 OK2.7034 864.00 OK

OK1.7190476 13.44 8.064 6.2003968

57.5144.92754

1.428571435 24.137931

2.62

height,h = 150

3.03

y x

CD

ratio clear space1.0540 46.59 OK 0.1251.0153 82.60 OK

ebars @ mm O.C.


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1.0728 120.00 OK1.2137 214.00 OK1.1589 438.00 OK 11.25 411.2358 886.00 OK 11.052632 241.5725 880.00 OK2.0941 872.00 OK2.7034 864.00

OK OK1.7190476 13.44 8.064 6.2003968

57.5144.92754

1.428571435 24.137931

2.62

height,h = 150

3.03

y x

ratio clear space1.0540 46.59 OK 0.125

1.0153 82.60 OK1.0728 120.00 OK1.2137 214.00 OK1.1589 438.00 OK 11.25 411.2358 886.00 OK 11.052632 241.5725 880.00 OK2.0941 872.00 OK2.7034 864.00 OK

OK1.7190476 13.44 8.064 6.2003968

57.5144.92754

1.428571435 24.137931

2.62

ebars @ mm O.C.

ebars mm O.C.


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height,h = 150

3.03

y x


OK1.7190476 13.44 8.064 6.2003968

57.5144.92754

1.4285714

35 24.1379312.62

height,h = 150

3.03

y x

ebars @ mm O.C.


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wt of stem 13.44wt of heel 7.2 xwt of soil 28.8 x

36

f= 66.666667 53.226667 1.4785185


36

f= 66.666667 53.226667 1.4785185


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36

f= 66.666667 53.226667 1.4785185


16/68


36

f= 66.666667 53.226667 1.4785185


36

f= 66.666667 53.226667 1.4785185


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36

f= 66.666667 53.226667 1.4785185


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COMPUTATION db d As reqd n n used s actuaMu: 14.62 kN-m Beta1 0.850 8 114 578 11.5 12 603fy : 276.0 mPA Rn 1.295 10 113 0.1451434 573 7.3 8 628fc : 21.0 mPA m 15.462 12 112 0.92458455 568 5.0 6 679



16.00 rho 1 0.0051 32 102 517 0.6 2 1608db : 12 mm 36 100 507 0.5 2 2036



n : 5.02



width,b = 1000

REMARKS :




16.00 rho 1 0.0051 32 102 517 0.6 2 1608db : 10 mm 36 100 507 0.5 2 2036



n : 7.30

DATA

O

DATA

O

- mm

175

- mm


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137.02

width,b = 1000

REMARKS :




16.00 rho 1 0.0051 32 102 517 0.6 2 1608db : 12 mm 36 100 507 0.5 2 2036

effective d : 112 mm rho used 0.0051

RESULTS :rebar details

As reqd : 568.12 mm^2 usen : 5.02



199.07

width,b = 1000

REMARKS :

DATA

O

175

- mm

175


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COMPUTATION db d As reqd n n used s actuaMu: 14.62 kN-m Beta1 0.850 8 114 578 11.5 12 603

fy : 276.0 mPA Rn 1.295 10 113 0.1451434 573 7.3 8 628fc : 21.0 mPA m 15.462 12 112 0.92458455 568 5.0 6 679width, b : 1000 mm rho 0.005 16 110 0.07541545 558 2.8 3 603


min cover : 20 mm 28 104 528 0.9 2 123216.00 rho 1 0.0051 32 102 517 0.6 2 1608

db : 12 mm 36 100 507 0.5 2 2036


rebar details

As reqd : 568.12 mm^2 usen : 5.02



width,b = 1000

REMARKS :




16.00 rho 1 0.0051 32 102 517 0.6 2 1608db : 10 mm 36 100 507 0.5 2 2036


rebar details

DATA

O

DATA

- mm

175


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As reqd : 573.19 mm^2 usen : 7.30



spacing o.c. 132.29 mm

width,b = 1000

REMARKS :




16.00 rho 1 0.0051 32 102 517 0.6 2 1608

db : 12 mm 36 100 507 0.5 2 2036effective d : 112 mm rho used 0.0051

RESULTS :

rebar details As reqd : 568.12 mm^2 use 6 12

n : 5.02



width,b = 1000

REMARKS :

O

O

DATA

- mm

175

- mm

175


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16.00 rho 1 0.0073 32 102 517 0.6 2 1608db : 12 mm 36 100 507 0.5 2 2036



n : 7.25



width,b = 1000

REMARKS :




16.00 rho 1 0.0051 32 102 517 0.6 2 1608db : 10 mm 36 100 507 0.5 2 2036

O

DATA

DATA

- mm

175


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n : 7.30



width,b = 1000

REMARKS :




16.00 rho 1 0.0073 32 102 517 0.6 2 1608db : 12 mm 36 100 507 0.5 2 2036



n : 7.25

n used : 8 beam diagram

As actual : 904.78 mm^2clear spacing 120.00 mm bar spacing OK( > 25mm)spacing o.c. 132.00 mm

width,b = 1000

O

O

DATA

- mm

175

- mm

175


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REMARKS :


width, b : 1000 mm rho 0.007 16 110 0.1132377 558 2.8 3 603


min cover : 20 mm 28 104 528 0.9 2 123216.00 rho 1 0.0073 32 102 517 0.6 2 1608

db : 12 mm 36 100 507 0.5 2 2036



n : 7.25



width,b = 1000

REMARKS :



O

DATA

DATA

- mm

175


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16.00 rho 1 0.0051 32 102 517 0.6 2 1608db : 10 mm 36 100 507 0.5 2 2036

effective d : 113 mm rho used 0.0051

RESULTS :rebar details

As reqd : 573.19 mm^2 usen : 7.30



width,b = 1000

REMARKS :

COMPUTATION db d As reqd n n used s actuaMu: 21.53 kN-m Beta1 0.850 8 114 578 11.5 12 603

fy : 276.0 mPA Rn 1.907 10 113 0.21365262 573 7.3 8 628fc : 21.0 mPA m 15.462 12 112 0.8867623 568 5.0 6 679



16.00 rho 1 0.0073 32 102 517 0.6 2 1608db : 12 mm 36 100 507 0.5 2 2036



n : 7.25



O

DATA

O

- mm

175

- mm


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width,b = 1000

REMARKS :

175


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ratio clear space AB1.0431 76.36 OK 0.1251.0962 122.29 OK1.1944 172.80 OK1.0810 444.00 OK1.1469 896.00 OK 11.25 411.8345 886.00 OK 11.052632 242.3344 880.00 OK3.1089 872.00 OK4.0133 864.00 OK

OK1.7190476 13.44 8.064 6.2003968

57.5144.92754

1.428571435 24.137931

2.62

height,h = 150

3.03

y x

ratio clear space1.0431 76.36 OK 0.1251.0962 122.29 OK1.1944 172.80 OK1.0810 444.00 OK1.1469 896.00 OK 11.25 411.8345 886.00 OK 11.052632 242.3344 880.00 OK

3.1089 872.00 OK4.0133 864.00 OK

OK1.7190476 13.44 8.064 6.2003968

57.5144.92754

ebars @ mm O.C.

ebars @mm O.C.


28/68

1.428571435 24.137931

2.62

height,h = 150

3.03

y x


OK1.7190476 13.44 8.064 6.2003968

57.5144.92754

1.428571435 24.137931

2.62

height,h = 1503.03

y x

ebars @ mm O.C.


29/68

CD

ratio clear space1.0431 76.36 OK 0.125

1.0962 122.29 OK1.1944 172.80 OK1.0810 444.00 OK1.1469 896.00 OK 11.25 411.8345 886.00 OK 11.052632 242.3344 880.00 OK3.1089 872.00 OK4.0133 864.00 OK

OK1.7190476 13.44 8.064 6.2003968

57.5144.92754

1.428571435 24.137931

2.62

height,h = 150

3.03

y x


OK1.7190476 13.44 8.064 6.2003968

ebars @ mm O.C.


30/68

57.5144.92754

1.428571435 24.137931

2.62

height,h = 150

3.03

y x


OK1.7190476 13.44 8.064 6.2003968

180 57.5144.92754

1.428571435 24.137931

2.62

height,h = 150

3.03

y x

ebars @ mm O.C.

ebars @ mm O.C.


31/68

AC


OK1.7190476 13.44 8.064 6.2003968

57.5144.92754

1.428571435 24.137931

2.62

height,h = 150

3.03

y x


ebars @ mm O.C.


32/68

OK1.7190476 13.44 8.064 6.2003968

57.5144.92754

1.428571435 24.137931

2.62

height,h = 150

3.03

y x


OK1.7190476 13.44 8.064 6.2003968

57.5144.92754

1.428571435 24.137931

2.62

height,h = 150

3.03

ebars @ mm O.C.

ebars @ mm O.C.


33/68

y x

BD

ratio clear space1.0431 76.36 OK 0.1251.0962 122.29 OK1.1944 172.80 OK1.0810 444.00 OK

1.1469 896.00 OK 11.25 411.8345 886.00 OK 11.052632 242.3344 880.00 OK3.1089 872.00 OK4.0133 864.00 OK

OK1.7190476 13.44 8.064 6.2003968

57.5144.92754

1.428571435 24.137931

2.62

height,h = 150

3.03

y x

ratio clear space1.0431 76.36 OK 0.1251.0962 122.29 OK1.1944 172.80 OK1.0810 444.00 OK1.1469 896.00 OK 11.25 41

ebars @ mm O.C.


34/68

1.8345 886.00 OK 11.052632 242.3344 880.00 OK3.1089 872.00 OK4.0133 864.00 OK

OK

1.7190476 13.44 8.064 6.2003968

57.5144.92754

1.428571435 24.137931

2.62

height,h = 150

3.03

y x


OK1.7190476 13.44 8.064 6.2003968

57.5144.92754

1.428571435 24.137931

ebars @ mm O.C.

ebars @ mm O.C.


35/68

2.62

height,h = 150

3.03

y x


36/68


36

f= 66.666667 53.226667 1.4785185

wt of stem 13.44wt of heel 7.2 x

wt of soil 28.8 x

36

f= 66.666667 53.226667 1.4785185


37/68


36

f= 66.666667 53.226667 1.4785185


38/68


36

f= 66.666667 53.226667 1.4785185


36

f= 66.666667 53.226667 1.4785185


39/68


36

f= 66.666667 53.226667 1.4785185


40/68


36

f= 66.666667 53.226667 1.4785185



41/68

36

f= 66.666667 53.226667 1.4785185


36

f= 66.666667 53.226667 1.4785185


42/68


36

f= 66.666667 53.226667 1.4785185


43/68


36

f= 66.666667 53.226667 1.4785185


36

f= 66.666667 53.226667 1.4785185


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L1 3000L2 3900

COLUMN STRIP WIDTH 750

MIDSTRIP WIDTH LONG DIR 2400MIDSTRIP WIDTH SHORT DIR 1500

column strip spacing number of barsleft mid bot right left mid bot right

AB 180 130 180 6CD 180 130 180 AC 130 130 130BD 130 130 130

midstrip spacingleft mid bot right

LONG DIR 130 115 130SHORT DIR 180 65 180

rebar size

left mid bot rightalong short span 12 10 12along short span 12 10 12along long span 12 10 12along long span 12 10 12

along short span 12 16 12along long span 12 10 12

500

1000

1500

2000

2500

3000

3500

4000

4500


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00 500 1000 1500 2000 2500 30


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0 00 3900

3000 39003000 0

0 0

0 750 col strip hor 3000 750

0 31503000 3150

750 0 col strip vert750 3900

2250 02250 3900

750 0 L/4 vert750 3900

2250 02250 3900

0 975 L/4 hor 3000 975

0 29253000 2925

50 50 50 50

750 50 750 5050 230 50 230

750 230 750 23050 410 50 410

750 410 750 41050 590 50 590

750 590 750 59050 770 50 770

750 770 750 77050 950 50 950

750 950 750 95050 1130 0 0

750 1130 0 050 1310 0 0

750 1310 0 050 1490 0 0

750 1490 0 050 1670 0 0

750 1670 0 050 1850 0 0

750 1850 0 050 2030 0 0

750 2030 0 0


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50 2210 0 0750 2210 0 0

50 2390 0 0750 2390 0 0

50 2570 0 0750 2570 0 0

50 2750 0 0750 2750 0 0

50 2930 0 0750 2930 0 0

50 3110 0 0750 3110 0 0

50 3290 0 0750 3290 0 0

50 3470 0 0750 3470 0 0

50 3650 0 0750 3650 0 0

50 3830 0 0750 3830 0 0

50 4010 0 0750 4010 0 0

50 4190 0 0750 4190 0 0

00 3500


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0.5 101 252 55

12060

0

10

20

30

40

50

60

0 0.5


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7.515

y = 30x - 5

1 1.5 2 2.5

Series1

Linear (Series1)


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5.405


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PROJECT DATEOWNER PREPAREDPARTICULARS CHECKED

TWO-WAY SLAB DESIGN ( DIRECT DESIGN METHOD )

MATERIAL PROPERTIES

SLAB DETAILS

span length, L1 7,620 mmspan length, L2 6,100 mm

long/short


59/68

ultimate factored load, Qu 85.14 kN/m^2

long span total factored moment, Mol 3,769.28 kN-mshort span total factored moment, Mos 3,017.40 kN-m

5.0 FACTORED MOMENTS AND REINFORCEMENT

minimum slab thickness 63 maximum slab thickness 108

trial slab thickness 175


60/68

continuousedge

20.7 ALONG L1

beam slabb 350 6100.00h 500 175 I 3.65E+09 2.72E+09

b 350 h 500 I 3.65E+09

7.29E+09

= 2.68

L along 7.62L perpen 6.10

mm x 0.800524934 0.52230971mm y 2.14 3.81

87.82 0.1753.985


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62/68

kn/m^2armories 7.2auditoriums 6residential ba 3exit facilities 4.8garages 4.8hospitals 6libraries 6manufacturin 6offices 2.4

7,620 printing plant 7.26,100 residential 2

rest rooms 2.4grand stands 4.8roof deck 2schools 2sidewalks 12storage 12

long/short


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min slab thkmax slab thk

short span length, Slong span length, L

beam widtheffective ratio S/L

kg/m^2734612306489489612612612245734204245489204204

12241224489153


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(1)

(2)

(3)

(4)

(5)

(6)







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rc 2way slab ddm final

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