Secondary - Options
(Revised:
10/28/2015)
The Secondary - Members
Options tab is used to describe general options of the active Secondary
Members, including the some Design Criteria as well as the Flange Brace,
Grouping, and Nesting options.
Options:
Allow Nesting of Zee Shapes
By
default this box is grayed out for all Secondary conditions EXCEPT for Simple Span
girts.
This
check box, when not grayed out and selected, allows only Simple Zee shape Secondary
girts to be nested when required by the Secondary design.
Flip 180 Degrees
This
check box, when selected, flips the Secondary member 180 degrees from the
normal (standard) orientation. By
flipping a girt, the outside flange will now be going up on a Zee member, and
on a Cee member it will go down.
By Others
This
check box, when selected, indicates that the Secondary Support Members will not
be supplied by the metal building manufacturer. The Weight edit box will be enabled and
required when this option is selected.
Weight
Enter
the weight of the Secondary Members that are By Others. This information is required during the design
of the primary framing system.
Offset
(Secondary Member):
Offset - Secondary Flange
Outside
The Secondary Offset to Building Line - From
Secondary Flange Outside radio button designates the Outside Flange of the
Secondary to be the dimension line, used in conjunction with the Secondary
Offset Dimension edit box.
The Secondary Offset to the Building Line Dimension
can be adjusted to recess the Secondary further into the building. A positive dimension moves the Secondary into
the building, a negative dimension moves the Secondary outward from the
building.
„
Notes:
If the Frame Offset
is set to: Match Secondary Depth (Outset), then primary frame location will be
adjusted by the Secondary Offset.
If the Frame Offset radio button is
Dimension to Building Line, then the Secondary Offset will not affect primary
frame location.
Offset - Secondary Center
The Secondary Offset to Building Line - From
Secondary Center Line radio button designates the Center Line of the Secondary to
be the dimension line, used in conjunction with the Secondary Offset Dimension
edit box.
The Secondary Offset to the
Building Line dimension can be adjusted to recess the Secondary further into
the building. A positive dimension moves
the secondary into the building, a negative dimension moves the Secondary
outward from the building.
„
Notes:
This option is
rarely used, but could be very useful at interior Partition walls.
Offset - Dimension
The Secondary Offset to Building Line - dimension
to Building Line edit box measures the distance from the Building Line to
either the Outside Flange or the Center Line of the Secondary, as selected by
the radio buttons.
The Secondary Offset to the
Building Line dimension can be adjusted to recess the Secondary further into
the building. A positive dimension moves
the Secondary into the building, a negative dimension moves the Secondary
outward from the building.
R - Factor:
R Factor - Inside Flange (R-f1)
Enter
the R Factor of the Secondary Members Inside Flange. This is determined by AISI code and will be
system generated.
R Factor - Outside Flange (R-f2)
Enter
the R Factor of the Secondary Members Outside Flange. This is determined by AISI code and will be
system generated.
User can view these R-f1 and R-f2 fields on the Expanded Secondary Design Report in
the section labeled Secondary Design Member Section Properties. See below example.
Standard
Controls:
See also: