D7.A.4 Built-in German Steel Section Library
A complete listing of the sections available in the built-in steel section library may be obtained using the tools of the graphical user interface.
Following are the descriptions of different types of sections.
Refer to G.6.2 Built-In Steel Section Libraries for additional information.
D7.A.4.1 IPE Shapes
These shapes are designated in the following way:
20 TO 30 TA ST IPEA120 33 36 TO 46 BY 2 TA ST IPER140
D7.A.4.2 HE Shapes
The designation for HE shapes is similar to that for IPE shapes.
25 TO 35 TA ST HEB300 23 56 TA ST HEA160
D7.A.4.3 I Shapes
I shapes are identified by the depth of the section. The following example illustrates the designation.
14 15 TA ST I200
(indicates an I-section with 200mm depth)
D7.A.4.4 T Shapes
Tee sections are not input by their actual designations, but instead by referring to the I beam shapes from which they are cut. For example,
1 5 TA T HEA220 2 8 TA T IPE120
D7.A.4.5 U Channels
The example below provides the command for identifying two channel sections. The former (U70X40) has a depth of 70mm and a flange width of 40mm. The latter (U260) has a depth of 260mm.
11 TA D U70X40 27 TA D U260
D7.A.4.6 Double Channels
Back-to-back double channels, with or without spacing between them, are available. The letter D in front of the section name will specify a double channel, e.g., D U180. The spacing between the double channels is provided following the expression SP.
11 TA D U180 27 TA D U280 SP 0.5
(Indicates 2 channels back-to-back spaced at 0.5 length units)
Two types of specifications may be used to describe an angle. The standard angle section is specified as follows:
16 20 TA ST L20X20X2.5
The above section signifies an angle with legs of length 20mm and a leg thickness of 2.5mm. The above specification may be used when the local z-axis corresponds to the Z-Z axis specified in Chapter 2. If the local y-axis corresponds to the Z-Z axis, type specification "RA" (reverse angle) may be used.
17 21 TA RA L40X20X5
D7.A.4.8 Double Angles
Short leg back-to-back or long leg back-to-back double angles can be specified by using the word SD or LD, respectively, in front of the angle size. In case of an equal angle, either SD or LD will serve the purpose. Spacing between the angles is provided by using the word SP and the spacing value following the section name.
14 TO 20 TA SD L40X20X4 SP 0.5 21 TO 27 TA LD L40X20X4 SP 0.5
D7.A.4.9 Pipes (Circular Hollow Sections)
To designate circular hollow sections, use PIP followed by numerical value of the diameter and thickness of the section in mm omitting the decimal section of the value provided for diameter. The following example will illustrate the designation.
8 TO 28 TA ST PIP602.9 * (60.3mm dia, 2.9mm wall thickness) 3 64 67 TA ST PIP40612.5 *(406.4mm dia, 12.5mm wall thickness)
Circular hollow sections may also be provided by specifying the outside and inside diameters of the section. For example,
1 TO 9 TA ST PIPE OD 25.0 ID 20.0
specifies a pipe with outside dia. of 25 and inside dia. of 20 in current length units. Only code checking and no member selection will be performed if this type of specification is used.
D7.A.4.10 Tubes (Rectangular or Square Hollow Sections)
Tube names are input by their dimensions. For example,
15 TO 25 TA ST TUB100603.6
is the specification for a tube having sides of 100mm x 60mm and the wall thickness of 3.6mm.
Tubes, like pipes can also be input by their dimensions (Height, Width and Thickness) instead of by their table designations.
6 TA ST TUBE DT 8.0 WT 6.0 TH 0.5
is a tube that has a height of 8, a width of 6, and a wall thickness of 0.5 in current length units. Only code checking and no member selection will be performed for TUBE sections specified this way.
Sample input file containing German shapes:
STAAD SPACE UNIT METER KN JOINT COORDINATES 1 0 0 0 15 140 0 0 MEMBER INCIDENCES 1 1 2 14 UNIT CM MEMBER PROPERTIES GERMAN * IPE SHAPES 1 TA ST IPEA120 * HE SHAPES 2 TA ST HEB300 * I SHAPES 3 TA ST I200 * T SHAPES 4 TA T HEA220 * U CHANNELS 5 TA ST U70X40 * DOUBLE U CHANNELS 6 TA D U260 * ANGLES 7 TA ST L20X20X2.5 * REVERSE ANGLES 8 TA RA L40X20X5 * DOUBLE ANGLES - LONG LEGS BACK TO BACK 9 TA LD L40X20X4 SP 0.5 * DOUBLE ANGLES - SHORT LEGS BACK TO BACK 10 TA SD L40X20X4 SP 0.5 * PIPES 11 TA ST PIP602.9 * PIPES 12 TA ST PIPE OD 25.0 ID 20.0 * TUBES 13 TA ST TUB100603.6 * TUBES 14 TA ST TUBE DT 8.0 WT 6.0 WT 0.5 * PRINT MEMBER PROPERTIES FINISH