Is Tables for RCC Design

8/17/2019 Is Tables for RCC Design

1/15

M-15 M-20 M-25 M-30 M-35 M-40

18.67 13.33 10.98 9.33 8.11 7.18

5 7 8.5 10 11.5 13

93.33 93.33 93.33 93.33 93.33 93.33

kc

0.4 0.4 0.4 0.4 0.4 0.4

jc 0.867 0.867 0.867 0.867 0.867 0.867

Rc 0.867 1.214 1.474 1.734 1.994 2.254

Pc (%) 0.714 1 1.214 1.429 1.643 1.857

kc 0.329 0.329 0.329 0.329 0.329 0.329

jc 0.89 0.89 0.89 0.89 0.89 0.89

Rc 0.732 1.025 1.244 1.464 1.684 1.903

Pc (%) 0.433 0.606 0.736 0.866 0.997 1.127

kc 0.289 0.289 0.289 0.289 0.289 0.289

jc 0.904 0.904 0.904 0.904 0.904 0.904

Rc 0.653 0.914 1.11 1.306 1.502 1.698

Pc(%) 0.314 0.44 0.534 0.628 0.722 0.816

kc 0.253 0.253 0.253 0.253 0.253 0.253

jc 0.916 0.916 0.916 0.914 0.916 0.916

Rc 0.579 0.811 0.985 1.159 1.332 1.506

Pc (%) 0.23 0.322 0.391 0.46 0.53 0.599

M-15 M-20 M-25 M-30 M-35 M-40

0.18 0.18 0.19 0.2 0.2 0.2

0.22 0.22 0.23 0.23 0.23 0.23

0.29 0.30 0.31 0.31 0.31 0.32

0.34 0.35 0.36 0.37 0.37 0.380.37 0.39 0.40 0.41 0.42 0.42

0.40 0.42 0.44 0.45 0.45 0.46

0.42 0.45 0.46 0.48 0.49 0.49

0.44 0.47 0.49 0.50 0.52 0.52

0.44 0.49 0.51 0.53 0.54 0.55

0.44 0.51 0.53 0.55 0.56 0.57

0.44 0.51 0.55 0.57 0.58 0.60

0.44 0.51 0.56 0.58 0.60 0.62

0.44 0.51 0.57 0.6 0.62 0.63

M-15 M-20 M-25 M-30 M-35 M-401.6 1.8 1.9 2.2 2.3 2.5

100As 100Asb d b d

tc.max

2.753.00 and above

Maximum shear stress tc.max in concrete (IS : 456-2000)

Grade of concrete

Shear stress tc Reiforcement %

M-20 M-20

1.25

1.50

1.75

2.00

2.25

2.50

bd

< 0.15

0.25

0.50

0.751.00

(d) sst =

275

N/mm2

(Fe 500)

Permissible shear stress Table v in concrete (IS : 456-2000)

100As Permissible shear stress in concrete tv N/mm2

(c ) sst =

230

N/mm2

(Fe 415)

(b) sst =

190

N/mm2

VALUES OF DESIGN CONSTANTS

Grade of concrete

Modular Ratio

scbc N/mm2

m scbc

(a) sst =140

N/mm2

(Fe 250)


2/15

0.15 0.18 0.18 0.15

0.16 0.18 0.19 0.18

0.17 0.18 0.2 0.21

0.18 0.19 0.21 0.24

0.19 0.19 0.22 0.27

0.2 0.19 0.23 0.3

0.21 0.2 0.24 0.32

0.22 0.2 0.25 0.35

0.23 0.2 0.26 0.38

0.24 0.21 0.27 0.41

0.25 0.21 0.28 0.44

0.26 0.21 0.29 0.47

0.27 0.22 0.30 0.5

0.28 0.22 0.31 0.55

0.29 0.22 0.32 0.6

0.3 0.23 0.33 0.65

0.31 0.23 0.34 0.7

0.32 0.24 0.35 0.75

0.33 0.24 0.36 0.82

0.34 0.24 0.37 0.88

0.35 0.25 0.38 0.940.36 0.25 0.39 1.00

0.37 0.25 0.4 1.08

0.38 0.26 0.41 1.16

0.39 0.26 0.42 1.25

0.4 0.26 0.43 1.33

0.41 0.27 0.44 1.41

0.42 0.27 0.45 1.50

0.43 0.27 0.46 1.63

0.44 0.28 0.46 1.64

0.45 0.28 0.47 1.75

0.46 0.28 0.48 1.88

0.47 0.29 0.49 2.00

0.48 0.29 0.50 2.13

0.49 0.29 0.51 2.25

0.5 0.30

0.51 0.30

0.52 0.30

0.53 0.30

0.54 0.30

0.55 0.31

0.56 0.31

0.57 0.31

0.58 0.31

0.59 0.31

0.6 0.32

0.61 0.32

0.62 0.320.63 0.32

0.64 0.32

0.65 0.33

0.66 0.33

0.67 0.33

0.68 0.33

0.69 0.33

0.7 0.34


3/15

0.71 0.34

0.72 0.34

0.73 0.34

0.74 0.34

0.75 0.35

0.76 0.35

0.77 0.35

0.78 0.35

0.79 0.35

0.8 0.35

0.81 0.35

0.82 0.36

0.83 0.36

0.84 0.36

0.85 0.36

0.86 0.36

0.87 0.36

0.88 0.37

0.89 0.37

0.9 0.37

0.91 0.370.92 0.37

0.93 0.37

0.94 0.38

0.95 0.38

0.96 0.38

0.97 0.38

0.98 0.38

0.99 0.38

1.00 0.39

1.01 0.39

1.02 0.39

1.03 0.39

1.04 0.39

1.05 0.39

1.06 0.39

1.07 0.39

1.08 0.4

1.09 0.4

1.10 0.4

1.11 0.4

1.12 0.4

1.13 0.4

1.14 0.4

1.15 0.4

1.16 0.41

1.17 0.41

1.18 0.411.19 0.41

1.20 0.41

1.21 0.41

1.22 0.41

1.23 0.41

1.24 0.41

1.25 0.42

1.26 0.42


4/15

1.27 0.42

1.28 0.42

1.29 0.42

1.30 0.42

1.31 0.42

1.32 0.42

1.33 0.43

1.34 0.43

1.35 0.43

1.36 0.43

1.37 0.43

1.38 0.43

1.39 0.43

1.40 0.43

1.41 0.44

1.42 0.44

1.43 0.44

1.44 0.44

1.45 0.44

1.46 0.44

1.47 0.441.48 0.44

1.49 0.44

1.50 0.45

1.51 0.45

1.52 0.45

1.53 0.45

1.54 0.45

1.55 0.45

1.56 0.45

1.57 0.45

1.58 0.45

1.59 0.45

1.60 0.45

1.61 0.45

1.62 0.45

1.63 0.46

1.64 0.46

1.65 0.46

1.66 0.46

1.67 0.46

1.68 0.46

1.69 0.46

1.70 0.46

1.71 0.46

1.72 0.46

1.73 0.46

1.74 0.461.75 0.47

1.76 0.47

1.77 0.47

1.78 0.47

1.79 0.47

1.80 0.47

1.81 0.47

1.82 0.47


5/15

1.83 0.47

1.84 0.47

1.85 0.47

1.86 0.47

1.87 0.47

1.88 0.48

1.89 0.48

1.90 0.48

1.91 0.48

1.92 0.48

1.93 0.48

1.94 0.48

1.95 0.48

1.96 0.48

1.97 0.48

1.98 0.48

1.99 0.48

2.00 0.49

2.01 0.49

2.02 0.49

2.03 0.492.04 0.49

2.05 0.49

2.06 0.49

2.07 0.49

2.08 0.49

2.09 0.49

2.10 0.49

2.11 0.49

2.12 0.49

2.13 0.50

2.14 0.50

2.15 0.50

2.16 0.50

2.17 0.50

2.18 0.50

2.19 0.50

2.20 0.50

2.21 0.50

2.22 0.50

2.23 0.50

2.24 0.50

2.25 0.51

2.26 0.51

2.27 0.51

2.28 0.51

2.29 0.51

2.30 0.512.31 0.51

2.32 0.51

2.33 0.51

2.34 0.51

2.35 0.51

2.36 0.51

2.37 0.51

2.38 0.51


6/15

2.39 0.51

2.40 0.51

2.41 0.51

2.42 0.51

2.43 0.51

2.44 0.51

2.45 0.51

2.46 0.51

2.47 0.51

2.48 0.51

2.49 0.51

2.50 0.51

2.51 0.51

2.52 0.51

2.53 0.51

2.54 0.51

2.55 0.51

2.56 0.51

2.57 0.51

2.58 0.51

2.59 0.512.60 0.51

2.61 0.51

2.62 0.51

2.63 0.51

2.64 0.51

2.65 0.51

2.66 0.51

2.67 0.51

2.68 0.51

2.69 0.51

2.70 0.51

2.71 0.51

2.72 0.51

2.73 0.51

2.74 0.51

2.75 0.51

2.76 0.51

2.77 0.51

2.78 0.51

2.79 0.51

2.80 0.51

2.81 0.51

2.82 0.51

2.83 0.51

2.84 0.51

2.85 0.51

2.86 0.512.87 0.51

2.88 0.51

2.89 0.51

2.90 0.51

2.91 0.51

2.92 0.51

2.93 0.51

2.94 0.51


7/15

2.95 0.51

2.96 0.51

2.97 0.51

2.98 0.51

2.99 0.51

3.00 0.51

3.01 0.51

3.02 0.51

3.03 0.51

3.04 0.51

3.05 0.51

3.06 0.51

3.07 0.51

3.08 0.51

3.09 0.51

3.10 0.51

3.11 0.51

3.12 0.51

3.13 0.51

3.14 0.51

3.15 0.51


8/15

rade of concret M-10 M-15 M-20 M-25 M-30 M-35 M-40 M-45

tbd (N / mm2) -- 0.6 0.8 0.9 1 1.1 1.2 1.3

M 15

M 20

M 25

M 30

M 35

M 40

M 45

M 50

(N/mm2) Kg/m2 (N/mm2) Kg/m

2

M 10 3.0 300 2.5 250

M 15 5.0 500 4.0 400M 20 7.0 700 5.0 500

M 25 8.5 850 6.0 600

M 30 10.0 1000 8.0 800

M 35 11.5 1150 9.0 900

M 40 13.0 1300 10.0 1000

M 45 14.5 1450 11.0 1100

M 50 16.0 1600 12.0 1200

M-10 M-15 M-20 M-25 M-30 M-35 M-401.2 2.0 2.8 3.2 3.6 4.0 4.4

Degree sin Degree cos tan cot

Value of angle

Permissible stress in concrete (IS : 456-2000)

29 1.92 30

28

1.4 25 2.24 26

36

1.1 32 1.76

1.3 27 2.08

33

1.2

60

0.8 44 1.28 45

40

0.6 58 0.96

0.9 39 1.44

1 35 1.6

tbd (N / mm2)

Permissible Bond stress Table bd in concrete (IS : 456-2000)

kd = Ld F

Direct (acc)

Grade of

concrete

Development Length in tension

Plain M.S. Bars H.Y.S.D. Bars

tbd (N / mm2) kd = Ld F

-- --

0.6 60

Grade of

concrete

Permission stress in compression (N/mm2) Permissible stress in bond (Average) for

plain bars in tention (N/mm2)

(N/mm2) in kg/m2

Bending acbc

1.0 100

1.1 110

0.8 80

0.9 90

Grade of concrete

sct.max

Permissible direct tensile stress in concrete (IS : 456-2000)

1.4 140

1.2 120

1.3 130


9/15

1 0.017 1 1.000 0.017 57.295

1.5 0.026 1.5 1.000 0.262 56.300

2 0.035 2 0.999 0.035 28.644

2.5 0.044 2.5 0.999 0.044 22.913

3 0.052 3 0.999 0.052 19.083

3.5 0.061 3.5 0.998 0.061 16.362

4 0.070 4 0.998 0.070 14.311

4.5 0.078 4.5 0.997 0.079 12.707

5 0.087 5 0.996 0.087 11.437

5.5 0.096 5.5 0.995 0.096 10.385

6 0.104 6 0.995 0.105 9.563

6.5 0.113 6.5 0.994 0.114 8.777

7 0.122 7 0.993 0.123 8.149

7.5 0.131 7.5 0.991 0.132 7.597

8 0.139 8 0.990 0.140 7.119

8.5 0.148 8.5 0.989 0.149 6.691

9 0.156 9 0.988 0.158 6.315

9.5 0.165 9.5 0.986 0.168 5.963

10 0.174 10 0.985 0.176 5.673

10.5 0.182 10.5 0.983 0.185 5.396

11 0.191 11 0.981 0.194 5.14211.5 0.199 11.5 0.980 0.203 4.915

12 0.208 12 0.978 0.213 4.704

12.5 0.819 12.5 0.976 0.839 1.192

13 0.225 13 0.974 0.231 4.332

13.5 0.233 13.5 0.972 0.240 4.166

14 0.242 14 0.970 0.249 4.011

14.5 0.250 14.5 0.968 0.259 3.867

15 0.259 15 0.966 0.268 3.732

15.5 0.259 15.5 0.964 0.269 3.723

16 0.276 16 0.961 0.287 3.488

16.5 0.284 16.5 0.959 0.296 3.376

17 0.292 17 0.956 0.306 3.272

17.5 0.301 17.5 0.954 0.315 3.172

18 0.309 18 0.951 0.325 3.078

18.5 0.317 18.5 0.948 0.335 2.989

19 0.326 19 0.946 0.344 2.905

19.5 0.334 19.5 0.943 0.354 2.824

20 0.342 20 0.940 0.364 2.747

20.5 0.350 20.5 0.937 0.374 2.674

21 0.358 21 0.934 0.384 2.605

21.5 0.367 21.5 0.930 0.394 2.539

22 0.375 22 0.927 0.404 2.475

22.5 0.383 22.5 0.924 0.414 2.414

23 0.391 23 0.921 0.424 2.356

23.5 0.399 23.5 0.917 0.435 2.300

24 0.407 24 0.924 0.440 2.271

24.5 0.415 24.5 0.910 0.456 2.19425 0.422 25 0.906 0.466 2.148

25.5 0.431 25.5 0.905 0.476 2.103

26 0.438 26 0.898 0.488 2.049

26.5 0.446 26.5 0.895 0.499 2.006

27 0.454 27 0.891 0.510 1.963

27.5 0.462 27.5 0.887 0.521 1.921

28 0.469 28 0.883 0.532 1.881

28.5 0.477 28.5 0.879 0.543 1.842


10/15

29 0.485 29 0.875 0.554 1.804

29.5 0.492 29.5 0.870 0.566 1.767

30 0.500 30 0.866 0.577 1.732

30.5 0.508 30.5 0.862 0.589 1.698

31 0.515 31 0.857 0.601 1.664

31.5 0.522 31.5 0.853 0.613 1.632

32 0.530 32 0.848 0.625 1.600

32.5 0.537 32.5 0.843 0.637 1.570

33 0.545 33 0.839 0.649 1.540

33.5 0.552 33.5 0.834 0.662 1.511

34 0.559 34 0.829 0.675 1.483

34.5 0.566 34.5 0.834 0.679 1.473

35 0.573 35 0.819 0.700 1.429

35.5 0.581 35.5 0.814 0.713 1.402

36 0.588 36 0.809 0.726 1.377

36.5 0.595 36.5 0.804 0.740 1.351

37 0.602 37 0.799 0.754 1.327

37.5 0.609 37.5 0.793 0.767 1.303

38 0.616 38 0.788 0.781 1.280

38.5 0.623 38.5 0.783 0.795 1.257

39 0.629 39 0.777 0.810 1.23539.5 0.636 39.5 0.772 0.824 1.213

40 0.643 40 0.766 0.839 1.191

40.5 0.649 40.5 0.760 0.854 1.171

41 0.656 41 0.755 0.869 1.150

41.5 0.663 41.5 0.749 0.885 1.130

42 0.669 42 0.743 0.900 1.111

42.5 0.676 42.5 0.737 0.916 1.091

43 0.682 43 0.731 0.933 1.072

43.5 0.688 43.5 0.725 0.949 1.054

44 0.695 44 0.719 0.966 1.036

44.5 0.701 44.5 0.713 0.983 1.018

45 0.707 45 0.707 1.000 1.000

45.5 0.713 45.5 0.701 1.018 0.983

46 0.719 46 0.695 1.036 0.966

46.5 0.725 46.5 0.688 1.054 0.949

47 0.731 47 0.682 1.072 0.933

47.5 0.737 47.5 0.676 1.091 0.916

48 0.742 48 0.669 1.109 0.902

48.5 0.749 48.5 0.663 1.130 0.885

49 0.755 49 0.656 1.150 0.869

49.5 0.760 49.5 0.649 1.171 0.854

50 0.766 50 0.643 1.192 0.839

50.5 0.772 50.5 0.636 1.213 0.824

51 0.777 51 0.629 1.235 0.810

51.5 0.786 51.5 0.623 1.262 0.792

52 0.788 52 0.616 1.280 0.781

52.5 0.793 52.5 0.609 1.303 0.76753 0.799 53 0.602 1.327 0.754

53.5 0.804 53.5 0.595 1.351 0.740

54 0.809 54 0.588 1.376 0.727

54.5 0.814 54.5 0.581 1.402 0.713

55 0.819 55 0.574 1.428 0.700

55.5 0.824 55.5 0.566 1.455 0.687

56 0.829 56 0.559 1.483 0.675

56.5 0.834 56.5 0.552 1.511 0.662


11/15

57 0.839 57 0.545 1.540 0.649

57.5 0.843 57.5 0.537 1.570 0.637

58 0.848 58 0.530 1.600 0.625

58.5 0.853 58.5 0.522 1.632 0.613

59 0.857 59 0.515 1.664 0.601

59.5 0.862 59.5 0.508 1.698 0.589

60 0.866 60 0.500 1.732 0.577

60.5 0.870 60.5 0.492 1.767 0.566

61 0.875 61 0.485 1.804 0.554

61.5 0.879 61.5 0.477 1.842 0.543

62 0.883 62 0.470 1.880 0.532

62.5 0.887 62.5 0.462 1.921 0.521

63 0.891 63 0.454 1.963 0.510

63.5 0.895 63.5 0.446 2.006 0.498

64 0.899 64 0.438 2.051 0.488

64.5 0.903 64.5 0.431 2.097 0.477

65 0.906 65 0.423 2.145 0.466

65.5 0.910 65.5 0.415 2.195 0.456

66 0.914 66 0.407 2.246 0.445

66.5 0.917 66.5 0.399 2.300 0.435

67 0.921 67 0.391 2.356 0.42467.5 0.924 67.5 0.383 2.414 0.414

68 0.927 68 0.375 2.475 0.404

68.5 0.930 68.5 0.819 1.136 0.880

69 0.934 69 0.358 2.605 0.384

69.5 0.937 69.5 0.350 2.674 0.374

70 0.940 70 0.342 2.747 0.364

70.5 0.943 70.5 0.556 1.696 0.590

71 0.946 71 0.326 2.904 0.344

71.5 0.948 71.5 0.317 2.989 0.335

72 0.951 72 0.309 3.078 0.325

72.5 0.954 72.5 0.301 3.172 0.315

73 0.956 73 0.292 3.271 0.306

73.5 0.959 73.5 0.284 3.376 0.296

74 0.961 74 0.276 3.488 0.287

74.5 0.964 74.5 0.267 3.606 0.277

75 0.966 75 0.259 3.732 0.268

75.5 0.968 75.5 0.250 3.868 0.259

76 0.970 76 0.242 4.011 0.249

76.5 0.982 76.5 0.233 4.209 0.238

77 0.974 77 0.225 4.332 0.231

77.5 0.976 77.5 0.216 4.511 0.222

78 0.978 78 0.208 4.705 0.213

78.5 0.980 78.5 0.199 4.915 0.203

79 0.982 79 0.191 5.145 0.194

79.5 0.983 79.5 0.182 5.396 0.185

80 0.985 80 0.174 5.673 0.176

80.5 0.986 80.5 0.165 5.977 0.16781 0.988 81 0.156 6.315 0.158

81.5 0.989 81.5 0.148 6.691 0.149

82 0.999 82 0.139 7.178 0.139

82.5 0.991 82.5 0.131 7.597 0.132

83 0.993 83 0.122 8.145 0.123

83.5 0.994 83.5 0.113 8.777 0.114

84 0.995 84 0.105 9.517 0.105

84.5 0.995 84.5 0.096 10.389 0.096


12/15

85 0.996 85 0.087 11.431 0.087

85.5 0.997 85.5 0.078 12.716 0.079

86 0.998 86 0.070 14.302 0.070

86.5 0.998 86.5 0.061 16.362 0.061

87 0.999 87 0.052 19.083 0.052

87.5 0.999 87.5 0.044 22.913 0.044

88 0.999 88 0.035 28.637 0.035

88.5 1.000 88.5 0.026 38.299 0.026

89 0.9998 89 0.017 57.295 0.017

89.5 0.9999 89.5 0.009 114.931 0.009

90 1.000 90 0.000 1.000 0.000


13/15


14/15


15/15

M-50

1.4

Is Tables for RCC Design

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Transcript of Is Tables for RCC Design