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Section Shape Type

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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


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