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STAAD Commands and Input Instructions
Section 5
5-120
2) A member declared as a TENSION only member or a
COMPRESSION only member will carry axial forces only. It
will not carry moments or shear forces. In other words, it is a
truss member.
3) The MEMBER TENSION and MEMBER COMPRESSION
commands should not be specified if the INACTIVE MEMBER
command is specified.
4) Do not use Load Combination to combine these cases.
Tension/Compression cases are non-linear and should not be
linearly combined as in Load Combination. Use a primary
load case with the Repeat Load command.
5) The following is the general sequence of commands in the
input file if the MEMBER TENSION or MEMBER
COMPRESSION command is used. This example is for the
MEMBER TENSION command. Similar rules are applicable
for the MEMBER COMPRESSION command. The dots
indicate other input data items.
STAAD …
SET NL …
UNITS …
JOINT COORDINATES
…
MEMBER INCIDENCES
…
ELEMENT INCIDENCES
…
CONSTANTS
…
MEMBER PROPERTY
…
ELEMENT PROPERTY
…
SUPPORTS
…
MEMBER TENSION
…
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