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American Steel Design
Section 2
2-4
engineers are familiar with a convention used by some other
programs in which the local y-axis is the minor axis. STAAD
provides for this convention by accepting the command:
54 55 56 TA RA L40356 (RA denotes reverse angle)
Double Angles
Short leg back to back or long leg back to back double angles can
be specified by inputting the word SD or LD, respectively, in front
of the angle size. In case of an equal angle either LD or SD will
serve the purpose.
14 TO 20 TA LD L35304 SP 0.5 Long leg back to back
L3-1/2x3x1/4 with 0.5
space
23 27 TA SD L904012 Short leg back to back
L9x4x3/4
Tees
Tees are not input by their actual names, as they are listed in the
AISC manual, but instead by designating the beam shapes (W and
S) from which they are cut. For example,
1 2 5 8 TA T W8X24 tee cut from W8X24 which is WT4X12