This is used to set the shape
factor of the structure. STAAD.Pro will set the default values of the shape
factor of the current secondary shape type of the current
shape item from the config database on the Set Shape Factor dialog. You can
modify the shape factor.
Positive value
is for the windward face.
Negative value
is for the leeward face.
Every face name
is shown in the first row, every direction of wind from is
shown in the first column, on the Set
Shape Factor dialog.
Tip: Refer to the diagrams in the dialog for the which sides of
the building each structure face label refers
to.
For circular structures, the shape factor is
calculated based on several parameters:
- Bulge Height on Face (delta) -
- Section Diameter - select if there is any change in
diameter along the height and if that change is linear
or nonlinear:
-
No Change (i.e.,
straight) - type the Section
Diameter of the entire structure
-
Linear Change (i.e.,
tapered) - type the Section
Diameter (at the base) and the
Top Section Diameter.
-
Nonlienar Change (i.e.,
stepped) - type the height and diameter of each
section along the structure in the table
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