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Section 5
5-119
command must be used to convey to STAAD that multiple
analyses and multiple structural conditions are involved.
For NON-LINEAR CABLE ANALYSIS :
This command is
unnecessary and ignored. Cables are automatically assumed to be
partially to fully tension only (except that there should always be
selfweight) without this command. In this analysis type, trusses
without preload are assumed to be linear members that carry both
tension and compression regardless of this command.
Example
MEMBER TENSION
25 TO 30 35 36
Example
MEMBER COMPRESSION
43 57 98 102 145
Example
MEMBER TENSION
12 17 19 TO 37 65
MEMBER COMPRESSION
5 13 46 TO 53 87
Notes for LINEAR TENSION/COMPRESSION ANALYSIS
1) Loads that have been defined on members declared as
MEMBER TENSION or MEMBER COMPRESSION will be
active even when the member becomes INACTIVE during the
process of analysis. This applies to SELFWEIGHT, MEMBER
LOADS, PRESTRESS & POSTSTRESS LOADS,
TEMPERATURE LOAD, etc.