Bentley 2006 User Manual
Section 5
5-165
d) A revised SPRING TENSION / COMPRESSION
command and its accompanying list of joints may be
provided after a CHANGE command. If entered, the new
SPRING commands replace all prior SPRING commands.
If not entered after a CHANGE, then the previous spring
definitions are used.
provided after a CHANGE command. If entered, the new
SPRING commands replace all prior SPRING commands.
If not entered after a CHANGE, then the previous spring
definitions are used.
e) The SPRING TENSION command should not be used if
the following load cases are present : Response Spectrum
load case, Time History Load case, Moving Load case. If
used, the SPRING TENSION /COMPRESSION will be
ignored in all load cases.
load case, Time History Load case, Moving Load case. If
used, the SPRING TENSION /COMPRESSION will be
ignored in all load cases.
f) If the SPRING TENSION/COMPRESSION command is
used in a model with UBC, IBC or other such seismic load
cases, each such load case must be followed by an
ANALYSIS and CHANGE command.
cases, each such load case must be followed by an
ANALYSIS and CHANGE command.