Frame Data - Stiffeners

(Revised: 04/30/2024)

The Stiffeners tab is used to Insert, Revise, or Delete the Stiffeners on Frames.
This tab allows you to modify multiple wall or roof sides at any time.
It is possible to insert stiffeners into a member prior to frame design and detailing.

The options for stiffeners will vary depending on the detail selected.
Some Stiffener types don't require a length dimension; this tab automatically enables the appropriate options for each type.

The locations of the stiffeners are measured from the floor line along walls and from the ridge or high side of rafters.
Refer to: Frame Data - Work Points

Sample Options - Stiffeners:

S1 Stiffener

Intermediate
Detailing may adjust +/- 4"
Add'l. Mfg. Tolerance +/- 2"

Stiffener 2r

S2 Stiffener

Between FI Holes

S3 Stiffener

Haunch - 90o to FO

Columns:  Used at Vertical Plates

Rafters: Can replace a Type 9

Stiffener 5r

S5 Stiffener

Partial Length

Length must be defined

Stiffener 6r

S6 Stiffener

Ridge

Stiffener 7r

S7 Stiffener

Full Length

S8 Stiffener

90o to Bolting Plate

Length must be defined

S9 Stiffener

Haunch - 90o to Knee Plate

Length can be defined

Type 10 Stiffener

90o to Knee Plate

Do not delete in Frame Data
Use Geometry Tool to Delete

Type 11 Stiffener

90o to S9 Stiffener

Do not delete in Frame Data
Use Geometry Tool to Delete

WSF Stiffener w/ FB Hole

Partial Length

Along FI

 

List:

This list box contains the Stiffeners that are on the selected Frame Column(s) or Rafter(s).

If multiple columns or rafters are selected with different stiffener criteria, the list will indicate the unique conditions.

Options:

Along

The Along drop list describes the flange that the measurements are defined along. FO, FI, SP (Bolting Plate)

Side

This drop list is used to define which side(s) of the web the stiffener(s) is located on.

  How to use:

The Near Side of a column is the side closest to you when the flange outside is on the right.

The Near Side of a rafter is the side closest to you when the high side is on the right.

Refer to: Frame Data - Work Points

Thickness

This drop list is used to define the thickness of the Stiffener, all available material sizes are listed.

Detail Button

This button will display the Detail options, if a detail is selected from the options pictured, it will automatically update the Detail drop list.

Each detail indicates how the stiffener is located.

Detail Drop List

This drop list allows you to select the Detail without having to use the selection options from the Detail button.

Length

This edit box defines the overall length of the Stiffener. This option is only available for S5, S8, and S9 Stiffener Types.

  How to use:

S5 & S8 Stiffeners = Length must be defined.

S9 Stiffeners = Length will be supplied as full depth but can be edited.

All Other Stiffeners = Frame Depth minus the FO and FI Thickness minus 1/8".

The Length of Full Depth Stiffeners may be adjusted on Manufacturing Documents when there is a Shop Splice and a Flange Thickness Change.

·        The Web Depth at the Stiffener location will be used to determine the Full Depth Stiffener length on the member with the Thicker Flange.

 

A diagram of a diagram

Description automatically generated

Special Width

The checkbox enables the Width edit box, allowing you to define a special dimension.

The edit box allows you to define a special dimension for the width of the Stiffener.

If this option is not used, the standard widths will be calculated.

  How to use:

Standard Depth of the Stiffeners is based on the Flange Width. This may vary at specific stiffener locations…

Stiffener Width

Flange Width

2

5

2.5

6

3.5

8

4

9

4.75

10

5.75

12

6.25

13

6.75

14

7.25

15

7.75

16

 

Special Welds

The checkbox is checked when Special Welds are defined.

The button will display the Special Weld options for the Stiffener attachment.

  Warning:

All Welds must be defined for all stiffeners.

 

Orientation:

The Orientation radio buttons allows you to manipulate the stiffener's direction.

Standard

The Standard orientation option will default to the most common use of the stiffener as shown on the Detail.

Horizontal

The Horizontal option will force the stiffener's orientation to be parallel to the ground.

Note: Manufacturing documentation will be translated to an Angled dimension.

Vertical

The Vertical option will force the stiffener's orientation to be perpendicular to the ground.

Note: Manufacturing documentation will be translated to an Angled dimension.

Angle

The Angle option allows you to define the angle of the stiffener from the flange or web.

Refer to the Details for dimensioning clarity.

Angle Value

This edit box defines the angle of the stiffener in degrees.

Refer to the Details for dimensioning clarity.

 


Holes, Clips, Stiffeners, Flange Braces, Brackets, & Misc Clips Locations

(The method used to locate parts on a frame side is the same on all Frame Data tabs.)

Location:

Based on the radio button option selected, the location options will be enabled or disabled as required.

Radio Button Options

End 1 / End 2

These radio buttons set the measurement method along the Wall Side (building line / girt line) or the Roof Side (roof line / purlin line). End 1 on a Wall Side are measured from the Finished Floor Elevation, a positive dimension is upward. End 1 on a Roof Side is from the ridge (or high side), a positive dimension is down-slope (along the slope).  End 2 is measured from the low eave.

Member

This option sets the measurement method along a Designed Frame Member. The locations along a column member are measured from the lowest point of the member (along the outside flange) inside any applicable base plate or splice plate, a positive dimension is upward. The Locations along a rafter member are from the highest point (along the outside flange) inside any applicable splice plate, a positive dimension is down-slope (along the slope). The measurement options will be enabled or disabled as required.

Note: This option is not available if the frames have not been designed.

Horizontal

This option sets the measurement method parallel to the floor. This enables the location to be a horizontal dimension from the work point.

Note: This option is only available on rafters.

Vertical

The option sets the measurement method perpendicular to the floor, measured from the Finished Floor Elevation.

Note: This option is only available on columns.

X and Y

The X and Y radio button sets the measurement method of locating stiffeners using a 2D coordinate value, from the work point. The measurement options will be enabled or disabled as required.

  How to use:

On rafters, the X coordinate will be a negative dimension down from the work point (ridge point or high eave point) at the sheet line.

This option is intended for use on webs, though it can also be used on a flange if desired.

  How to use:

Comparing the usage of all radio button options:  "End 1" is used most frequently.

Location

Total Distance (read only)

This displays the overall length of the Wall Side or Roof Side selected. If multiple columns or rafters are selected with varying lengths, this box will not display a length.

Quantity of Spaces / Spaces At

This edit box is used to insert multiple locations into the list. It is used in conjunction with the Spaces At edit box.

You can insert into the middle of the existing list by selecting a row in the list prior to entering the location information. The locations will be added prior to the row selected without moving the active row.

This edit box defines the distance between the locations inserted into the list. Inserting new rows is used in conjunction with the Quantity of Spaces edit box. Revising a Space will automatically adjust all of the following spaces to new locations.

Location At

This edit box is used to insert or revise a specific location in the list. Locations will be added or modified in the list without moving any other row.

You can insert into the middle of the existing list without selecting a row from the list.

  How to use:

Comparing the usage of both locating methods "Spaces At" & "Location At":  "Location At" is used most frequently.

Location - X / Y

The X - Y work points for columns is at the base and at the ridge or high side for rafters.

X Horizontal

This edit box displays the horizontal dimension from the work point.

Note: On rafters, the X coordinate will be a negative dimension down from the work point (ridge point or high eave point) at the sheet line.

Y Vertical

This edit box displays the vertical dimension from the work point.

Location - Member

Flange Length (read only)

This box is the length of the designed Member's Flange not including bolting plates.

Member ID

This drop list displays the names of the designed Frame Members. The list includes all of the Members along the Frame Line.

Location At

This edit box is the dimension from the edge of the designed Member's Flange not including bolting plates.

Options:

Insert, Revise, Delete, and Delete All

These buttons add, modify, & remove row(s) of data into the list.

Standard Controls:

§ View, OK, Cancel, Apply, Help

 

Photos:

Type 1 (Intermediate Stiffener)


Type 2
(Above an Interior Column, between holes)
 

Type 3
(Horizontal Haunch FI/KN to FO, 90 degrees to the KN)

Type 5 (Partial Length on the Bracket)
Type 7
(Full Length above the Bracket on the Rafter)

Type 9 (Haunch FI/KN to FO, 90 degrees to the KN)
Type 10
(Middle of KN to 1/2" from FO)



See also:

§ Frame Data - Side Selection

§ Frame Data - Holes

§ Frame Data - Clips

§ Frame Data - Flange Braces

§ Frame Data - Brackets

§ Frame Data - Misc Plates

§ Frame Data - Work Points

§ Frame Data - Near Side and Far Side

§ Frame Data - Inserting Type 8 Stiffeners

§ Geometry Tool - Remove Type 10 or 11 Stiffener