D2.B.4 Built-in Steel Section Library
A complete listing of the sections available in the built-in steel section library may be obtained by using the tools of the graphical user interface.
|General Profile Type||Australian Sections||Description|
|I-SECTION||WB, WC||Welded beams and columns|
|UB, UC||Universal beams and columns|
|T-SECTION||BT, CT||Tees cut from universal beams and columns|
|CHANNEL||PFC||Parallel flange channels|
|ANGLE||EA, UA||Equal and unequal angles|
|TUBE||SHS, RHS||Square and rectangular hollow sections|
|PIPE||CHS||Circular hollow sections|
Following are the descriptions of different types of sections.
Refer to G.6.2 Built-In Steel Section Libraries for additional information.
D2.B.4.1 UB Shapes
These shapes are designated in the following way.
20 TO 30 TA ST UB150X14.0 36 TO 46 TA ST UB180X16.1
D2.B.4.2 UC Shapes
The designation for the UC shapes is similar to that for the UB shapes.
25 TO 35 TA ST UC100X14.8 23 56 TA ST UC310X96.8
D2.B.4.3 Welded Beams
Welded Beams are designated in the following way.
25 TO 35 TA ST WB700X115 23 56 TA ST WB1200X455
D2.B.4.4 Welded Columns
Welded Columns are designated in the following way.
25 TO 35 TA ST WC400X114 23 56 TA ST WC400X303
D2.B.4.5 Parallel Flange Channels
Shown below is the syntax for assigning names of channel sections.
1 TO 5 TA ST PFC75 6 TO 10 TA ST PFC380
D2.B.4.6 Double Channels
Back-to-back double channels, with or without a spacing between them, are available. The letter D in front of the section name will specify a double channel.
11 TA D PFC230 17 TA D C230X75X25 SP 0.5
In the above set of commands, member 11 is a back-to-back double channel PFC230 with no spacing in between. Member 17 is a double channel PFC300 with a spacing of 0.5 length units between the channels.
Two types of specification may be used to describe an angle. The standard angle section is specified as follows:
16 20 TA ST A30X30X6
The above section signifies an angle with legs of length 30 mm and a leg thickness of 6 mm. This 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 A150X150X16
D2.B.4.8 Double Angles
Short leg back-to-back or long leg back-to-back double angles can be specified by means of input of the words SD or LD, respectively, in front of the angle size. In case of an equal angle, either SD or LD will serve the purpose.
33 35 TA SD A65X50X5 SP 0.6 37 39 TA LD A75X50X6 43 TO 47 TA LD A100X75X10 SP 0.75
D2.B.4.9 Tubes (Rectangular or Square Hollow Sections)
Tubes can be assigned in 2 ways. In the first method, the designation for the tube is as shown below. This method is meant for tubes whose property name is available in the steel table. In these examples, members 1 to 5 consist of a 2X2X0.5 inch size tube section, and members 6 to 10 consist of 10X5X0.1875 inch size tube section. The name is obtained as 10 times the depth, 10 times the width, and 16 times the thickness.
1 TO 5 TA ST TUB20202.5 6 TO 10 TA ST TUB100503.0
In the second method, tubes are specified by their dimensions. For example,
6 TA ST TUBE DT 8.0 WT 6.0 TH 0.5
is a tube that has a height of 8 length units, width of 6 length units, and a wall thickness of 0.5 length units. Only code checking, no member selection, will be performed for TUBE sections specified in this latter manner.
D2.B.4.10 Pipes (Circular Hollow Sections)
Pipes can be assigned in 2 ways. In the first method, the designation for the pipe is as shown below. This method is meant for pipes whose property name is available in the steel table.
1 TO 5 TA ST PIP180X5 6 TO 10 TA ST PIP273X6.5
In the second method, pipe sections may be provided by specifying the word PIPE followed by 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 diameter of 25 length units and inside diameter of 20 length units. Only code checking, no member selection, will be performed on pipes specified in this latter manner.
D2.B.4.11 Sample File Containing Australian Shapes
STAAD SPACE UNIT METER KN JOINT COORD 1 0 0 0 11 100 0 0 MEMB INCI 1 1 2 10 UNIT CM MEMBER PROPERTIES AUSTRALIAN * UB SHAPES 1 TA ST UB200X25.4 * UC SHAPES 2 TA ST UC250X89.5 * CHANNELS 3 TA ST PFC125 * DOUBLE CHANNELS 4 TA D PFC200 * ANGLES 5 TA ST A30X30X6 * REVERSE ANGLES 6 TA RA A150X150X16 * DOUBLE ANGLES - SHORT LEGS BACK TO BACK 7 TA SD A65X50X5 SP 0.6 * DOUBLE ANGLES - LONG LEGS BACK TO BACK 8 TA LD A100X75X10 SP 0.75 * TUBES (RECTANGULAR OR SQUARE HOLLOW SECTIONS) 9 TA ST TUBE DT 8.0 WT 6.0 TH 0.5 * PIPES (CIRCULAR HOLLOW SECTIONS) 10 TA ST PIPE OD 25.0 ID 20.0 PRINT MEMB PROP FINISH