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General Description
Section 1
1-88
Ground motion or a joint force distribution may be specified.
Each global direction may be at a different phase angle.
Output frequency points are selected automatically for modal
frequencies and for a set number of frequencies between modal
frequencies. There is an option to change the number of points
between frequencies and an option to add frequencies to the list of
output frequencies.
The load case that defines the mass distribution must be the case
just before the PERFORM STEADY STATE ANALYSIS
command. Immediately after that command is a set of data
starting with BEGIN STEADY and ending with END STEADY.
The list of additional frequencies and the steady state load cases
with joint loads or ground accelerations and phasing data are
entered here. The optional print command for the maximum
displacement and associated phase angle for selected joints must
be at the end of this block of input.
[Stardyne-Dynre2 data beginning with START2 and ending with ALL DONE may
substitute for the BEGIN to END STEADY data if the STRESS data is omitted.]
1.19 Member End Forces
Member end forces and moments in the member result from loads
applied to the structure. These forces are in the local member
coordinate system. Figure 1.18a through 1.18d shows the member
end actions with their directions.
See
section 5.41