Section Shape Type

Section shapes were divided into several groups which, in most cases, are divided into subgroups.

Shape Type Section Description
1

Equal leg angle in central axes parallel to legs

2

Equal leg angle in central axes

3

Unequal leg angle in central axes parallel to legs

4

Unequal leg angle in central axes

5

Two angles in cruciform shape in central axes parallel to legs

7

Two angles in cruciform shape in central axes

6, 8, 9

Two angles with legs back to back

6 - Two equal leg angles

8 - Two angles (with unequal legs) with longer legs back to back

9 - Two angles (with unequal legs) with shorter legs back to back

10-15, 20-25, 30

I-shapes

10-12 - Thin-walled flange and web of similar length (HEA, HEAA, HEB)

13, 14 - Thick-walled flange and web of similar length (HEC, HEM)

15 - Large section with narrow flange and high thick-walled web (HER)

20-24 - Web approximately twice longer than flange, thin walls (IPE, IPEA, IPEO, IPER)

25 - Identically as 20-24, with oblique flanges (IPN)

30 - Identically as 15, welded (PRS)

16-19

Two welded I shapes

16, 17 - Two I-sections of similar web and flange length (HHEA, HHEB)

18 - As above, thick-walled (HHEM)

19 - Two I-sections with webs longer than flanges (IIPE)

26-29

T-shapes

26, 27 - Flange approximately twice longer than web (HEA, HEB halves)

28 - As above, thick-walled (HEM halves)

29 - Web and flange of similar length (IPE halves)

32,33

T-shape

31

Square structural tubing

34

Hexagonal structural tubing

35

Rectangular tubing

36 {bmc S_typ_15.bmp}

Pipe

37, 38

Channels

37 - Straight flanges

38 - Oblique flanges

39, 40

Two channels back to back

39 - Straight flanges

40 - Oblique flanges

41 Solid rectangular section (recognized by the program to be a timber section)
42

Cold-bent channel

43 Solid rectangular section (recognized as a steel section)
44 Solid circular section
45

Half-closed channel

46

U-type rounded section

47

Rectangular pipe - rounded

  User-defined sections:
91

Box section

92

Rectangular pipe section

93 Circular pipe section
94

Symmetrical I-section

95

Asymmetrical I-section

96

T-section

97

Channel

99

Double rectangular section - timber

100 Solid circular section (recognized in the program to be a timber section)
201

Cross section

See also:

Description of some section symbols