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STAAD Commands and Input Instructions
Section 5
5-328
WIND LOAD Z 1.2 TYPE 2 ZR 10 11
LOAD 3
WIND LOAD X TYPE 1 XR 7 8 ZR 14 16
LOAD 4 SUCTION ON LEEWARD SIDE
WIND LOAD -X 1.2 LIST 21 22 42
Example for open structures
LOAD 1 WIND LOAD IN Z DIRECTION
WIND LOAD 2 -1.2 TYPE 1 OPEN
Notes
1.
es
nce
ar surfaces, to a close
tolerance, or they will not be loaded.
e
per closed
uently, the number of exposed joints should be at least
three.
For closed type structures, panels or closed surfaces are
generated by the program based on the members in the rang
specified and their end joints. The area within each closed
surface is determined and the share of this area (influe
area) for each node in the list is then calculated. The
individual bounded areas must be plan
Hence, one should make sure that the members/joints that ar
exposed to the wind make up a closed surface (ground may
form an edge of the closed surface). Without a pro
surface, the area calculated for the region may be
indeterminate and the joint force values may be erroneous.
Conseq