Indian Steel Table

M.K.S. & S.I. UNITS

R.AGOR

NAME:

VWIAL G. NARAYAN6\...N\..

BIRLNS M.K.S. & S.I. UNITS

LE By:

Prof. R. Agor

Also Available: • Steam Tables • Refrigerant and Psycbrometric

[I Bi RLA PUBLICATIONS PVT. lTD. 1/9185, Street Na. 5. West Rahtas Nagar. Shahdara. Delhi·ll0 032 Ph. : 22323254. 22323622 Fax: 22324544 E-mail: hirla_publications([.t?rediff.com

Published by :

Hi RIA ""PU=BL'""IC:":"Ar=IO=.""'Sp=v=r.=LT=o. 1/9185. Street No.5. West Rohtas Nagar. Shahdara. Delhi-ltO 032

© With the Publishers

All Rights Reserved. No port and style ofthis boak be reproduced or transmitted, in any form, ar by any means - electranic, mechanical. photocopying, recording or otherwise, without prior permission of the publishers and author.

First Edition Reprint Edition Second Edition Reprint Edition Third Edition Reprint Edition Fonrth Edition Fifth Edition Sixth Edition Seventh Edition Eighth Edition Ninth Edition Tenth Edition Eleventh Edition 1\velth Edition Thirteen Edition

: 1994 : 1994 : 1995 : 1995 : 1995 : 1996 : 1997 : 1998 : 1999 : 2000 : 2001 : 2002 : 2003 : 2004 : 2005 : 2006

Price Rs. 50.00

ISBN: 81-256-0011-6

1Ypesetling at : Anu Laser Printers Delhi-l10032

Printed at: NOVELTY PRINTERS Delhi-l10053

) Contents

. Table No.

List of Tables

23.

Square Bats

73

24.

Mild Steel flats (weights)

74

25.

Mild Steel flats (cross sectional area)

76

26.

Moment of lnen;a of two flanges per centimetre width "bout X·X-axis

78

27.

Moment of lnmia of one web plate about its X·X-axis

80

28.

Reduction for area for rivet holes

81

29.

Strip

82

30.

Sheet

84

31.

Safe loads for single angle struts (single bolt)

32.

Safe load for single angIe struts (double bolt)

88

33.

Areas of round bats in slabs per meter width for different spacings

92

SYMBOLS Letter symbols used in this handbook shall have the meaning assigned to them as indicated beiow :

a

Sectional area in sq em

fu u

Radius -of gyration about the U-U axis

b

Width of flange

Iw

Radius of gyration about the V-V axis

A

The longer leg of an unequal angle or one- of the,legs in the case of an equal angle

'xx

Radius of gyration about the X-X axis

R yy

Radius of gyration about the Y-Y

The shorter leg of an unequal angle or one of the legs in the case of an equal angle

S

Maximum allowable shear in the web

b

Cxx

Thickness of angles, plates, etc_ Mean thickness of compression flange

The lesser of the two extreme fibre distances from the X-X axis

If

The lesser of the two extreme fibre distances from the y.Y axis

Thickness of flange at the centre of the outstand

It

Mean thickness of tension flange

D

Slope of flange

12

Thickness of web

D

The outstand of the bulb in the case of buib angles

w

Calculated weight in kg per m ( = 0.785 a)

=

Distance of extreme fibre from the X"X axis

Zc

=

Distance of extreme fibre from the Y-Y

Z1

8XZ

=

Rivet gauge distance in the flange

91

Rivet gauge distance in the web

h

Overall depth of section

I mm

Moment of Inertia about the U-U axis

Ivv

Moment of inertia about the V-V axis

I xx

Moment of inertia about the X-X axis

Ix

Product of inertia about the X-X and Y-Yaxis

lyy

Moment of Inertia about the Y-Y axis

M

Maximum allowable moment

Modulus of section about the X-X axis Modulus of section about the Y-Y axis A line parallel to the axis of the web of the section (in the case of berams, channels and tee bars) or parallel to the axis of the longer flange (in tho case of unequal angles and bulb angles) or enher flange (in the case of equal angles) and passing through the centre of gravity of the profile of the section A line passing through the centre of gravny of the profile of the section, and at right angles to the y.Y axis.

Radius at root of the flange Radius at toe of the flange Radius of bUlb corners in the case of bulb angles

of the

Modulus of section based on the distance of extreme fibre of the tension flange

axis

9

ModUlus of extreme fibre compression flange

=}

V-V and V-V axis =

Unes passing through the centre of gravity of the profile of the section, representing the principal axis of the section

(D

Sl'lltt.L TABLES

.etJ,

SAFE LOADIFtlti.INGLE ANGLE STRUTS DOUBLE BOLTED OR DOUElLlll'lfVllillO OR WELDED END CONNECTIONS Effective Len9ths in Metres

1,0

1,5

Size

Sale Load. in kg

AxBxC

~ mm mm mm 125 x 75 x 10,0 (J)

w

..J

(!l

z« ;;!

:J

zlil :J

21513.5

125x 95 x 10.0

12,0 150x75x12.0

28853.2

15ox115x12.0 15.0 200 x 100 x 15.0

17892.1

121149.11.

1li!7U

I.~ 6057.9

22552.4 26746.1

la7~4.Q

14~71U

10676.1

221114.7

11\l!4l!,6

12577.4

9182.6

23724.1

16a32.3

11'!!1U

7a50.0

5559.5

34444.8 42498.9

31133.4

;;t~llmUi

20831.6

35360.4 3982a.2

16353.6 20065.7

31l1llU

23~24.7

17625.4

6lff1l7.~

47029.0 56780.0

40230.2 4765a.6

6.0

7.0

46779.9

200 x 150 x 15.0

56757.4 67451.1

18.0 Effective Lengths

4.0

4.5

2~~77.4

62611U

5.0

4304.2 7811,0

in Metres

Size Safe Load. In kg

AxBxC

~ mm mm mm 125 x 75 x 10.0 125x95xl0.0

31a5.a 5a91,9

4508.8

G

12.0 150 x 75 x 12.0

6924.5

5300.8

i

150x115x12,0

(J)

w

~,

:l

15.0 200 x 100 x 15.0 200 x 150 x 15.0 18.0

9a73.5 12096.4 10207.3 27898.a 33023.4

3552.4 4171,7 7a74.5 9631.4 aOal,1 23160.2 27364.1

.....",

'635U

~213.2

7777.9

6374.6

-~~:~:'l

15003.6

1120M

1867~.0

13230.9

Note 1-The safe loads give in 1his Table are tabulated for ratio of slmdemeu up to but nol exceeding 250. 2-The values on 1he righl side ol1he zig-zag dotted lines are for mIlo of siR""'''''" exceeding 180. 3-This Table is based on the requirements specffied in 18.9.1.1 of IS: 800·1956.

STEEL TABLES

92

TABLE 33

AREAS OF ROUND BARS IN SLABS PER METRE WIDTH FOR DIFFERENT SPACINGS Dia.of bars (mm)

Spacln9 of bars (em) 6

8

10

12

14

16

18

20

22

24

26

28

30

'5

3.27

2.45

1.96

1.64

;'40

1.23

1.09

0.98

0.89

0.82

0.75

0.70

0.65

6

4.71

3.53

2.83

2.63

2.02

1.76

1.57

1.41

1.28

1.18

1.09

1.01

0.94

7

6.41

4.81

3.85

3.20

2.75

2.40

2.17

1.92

1.75

1.60

1.48

1.37

1.28

8

8.37

6.28

5.02

4.19

3.59

3.14

2.79

2.51

2.28

2.09

1.93

1.79

1.67

10

13.09

9.82

7.85

6.54

5.61

4.91

4.38

3.93

3.57

. 3.27

3.02

2.80

2,62

11

15.84

11.88

9.50

7.92

6.79

6.94

5.28

4.75

4.32

3.98

3.85

3.39

3.17

12

18.85 . 14.14

11.31

9.42

8.08

7.07

6.28

5.65

5.14

4.71

4.35

4.04

3.77

14

26.65

15.39 12.83 11.00

9.62

8.55

7.70

7.00

6.41

5.92

5.50

5.13

7.18

7.70

9.08

8.48

16

33.54

19.24 25.13

20.10 16.76 14.36

12.56 11.18 10.05

9.14

8.38

7.73

15.90 14.14 12.75 11.56

10.60

9.78

18

42.41

31.80

25.44 21.20 18.17

20

52.36

39.27

31.41

26.18 22.44

19.84 17.45 15.71 14,29

13.09 12.08

11.22 10.47

22

47.51

38.01

31.67 27.15

23.75 21.12 19.00 17.28

15.84 14.62

13.57 13.67

25

61.36

49.08 40.90 35.06

30.68 27.27 24.54 22.31

20.45 18.88

17.53 16.36