Beam Ridge Plate (a custom component )

VIDEO

A Beam Ridge Plate component is added to a sloping beam at the peak of a hip roof. (Recorded in SDS2 Detailing , v2018.)


The Beam Ridge Plate custom component can be added to an wide flange or HSS/TS beam.

One way to edit the ridge plate is to open the Beam Edit window. You will find these settings in the [Beam Ridge Pate ] section. Another way is to double-click a ridge plate material or weld with the " Selection filter " set to ' Default ' or ' All ' or ' Custom Components ''.

If User and Site Options > Modeling > " Automatically process after modeling operation " is set to ' Process and create solids ', the beam ridge plate is generated immediately after you press " OK " to close this window. If not, the ridge plate will be generated the next time the beam that this component belongs to undergoes Process and Create Solids .

Also see :

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Tips for adding a beam ridge plate :

  • Before adding the ridge plate, confirm that the settings at Home > Project Settings > Job > [Plugin Defaults] header > Components > Beam Ridge Plate are the choices you want.
  • You can add a ridge plate to a beam in a plan view, elevation view or isolation view.
  • You can add a ridge plate to a beam whose " Section size " is a wide flange or an HSS/TS. This documentation refers refers to the beam as the ridge beam since this component was designed to be used to add a ridge plate to a roof's ridge beam.
  • The points you locate automatically translate to be in line with the top flange of the ridge beam you are adding the ridge plate to. Even if you later change the " End elevation " of one of the beam's ends, the ridge beam will continue to follow the slope of the beam. The ridge plate component also adapts (is resized) if you change the beam's " Section size ."
  • Two points position the ends of the ridge plate. You cannot apply setbacks on the Beam Ridge Plate window. So it is important that you choose the location of your points carefully.
  • General practice is to lay out points so that point 1 of the ridge plate corresponds to the left end of the beam. However, this is not required, and there may be reasons to deviate from this practice. For example, see " Maximum bent plate length ."

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     Material specifications ----------------------------------------------------------------------

Graphical : or .

  • A Beam Ridge Plate component is automatically set to " Graphical " whenever you make graphical changes to any of its materials or welds. For example, when you Edit Material or perform a material cutting operation on a Beam Ridge Component material. " Graphical " stops the component from being changed during Process and Create Solids . Click here for more information.

Roof slope: The number of degrees that each leg of the ridge plate is bent from horizontal. The slope you enter here changes the pitch of the ridge plate so that it matches the value that you enter. The number of degrees entered here equals half the " Bend angle " that is reported on the Bent Plate Material window.

' 0 ' degrees flattens the ridge plate against the top flange of the ridge beam. The ridge plate has no bend.

' 22.5 ' makes each leg of the ridge plate slope 22.5 degrees upward and inward, toward the center of the beam.

' 45 ' makes each leg of the ridge plate slope 45 degrees.

Bent plate thickness: 3/16 or 1/4 or 3/8 or 1/2 . Each of these four thicknesses are fractions of an inch. They set the " Material thickness " of the bent plate material that the ridge plate is made of. On the Bent Plate Material window, the thickness that you select here will be expressed in the primary dimension " Units ."

The thickness dimension of a ridge plate that was added to an HSS/TS beam.

Maximum bent plate length: A distance (in the primary dimension " Units " or other units ).

When the two end points of the ridge plate is greater than the " Maximum bent plate length ," the bent plate that makes up the ridge plate is divided into segments. All segments except the segment closest to point 2 are each the " Maximum bent plate length ." The segment closest to point 2 is whatever extra length is left over. Point 1 and point 2 are established when the ridge plate is added .

Add weld to plate: Yes or No .

' Yes ' welds the ridge plate to the top flange of the beam.

' No ' stops the beam ridge plate component from welding the ridge plate to the top flange of the beam. .

Weld type: Fillet or Square groove . This applies when " Add weld to plate " is set to ' Yes '. It sets the weld " Type " on the Weld Edit window in Modeling as well as the weld " Type " for the weld symbol on the beam detail.

symbol name   weld used for...
 fillet General welding of material.
square groove Butt joints of material 3/8" thick or less.

Weld size: A distance (in the primary dimension " Units " or other units ) that indicates depth of preparation, size or strength of the weld. This sets the " Weld size " on the Weld Edit window in Modeling as well as the " Weld size " for the weld symbol on the beam detail.

Butt weld ends of ridge plates ( if applicable ): Yes or No . This can apply when the ridge plate has been divided into multiple segments due to the " Maximum bent plate length " being less than the distance between the end points of the ridge plate.

A butt weld symbol designating a joint between segments of a ridge plate. The gap between segments is 1/6 inch (0.0625 inch).

' Yes ' butt welds the segments to the ridge plate.

' No ' stops the beam ridge plate component from butt welding segments of the ridge plate.

Ridge plate width option: Match bf or Match toes . The following example shows the results obtained when " Auto bent plate leg width " is checked.

Match bf
Match toes

' Match bf ' sets the width of the ridge plate to match the width of the beam flange when " Auto bent plate leg width " is checked. As shown in the above screen shot, each upper corner of the edges of the bent plate aligns with the nearest edge of the beam's top flange.

' Match toes ' sets the width of the ridge plate to be slightly larger than does ' Match bf '. When " Auto bent plate leg width " is checked, each bottom corner of the edges of the bent plate aligns with the corresponding edge of the beam's top flange.

Auto bent plate leg width: or .

In this example , " Auto bent plate leg width " is on ( ). " Ridge plate width option " is set to ' Match toes '. " Bent plate leg width " reports the calculated value, which cannot be changed as long as " Auto bent plate leg width " remains checked.

Same as above , except that " Auto bent plate leg width " is off ( ). and the value entered to " Bent plate leg width " is greater than the calculated width that would be reported if " Auto bent plate leg width " had remained checked.

If this box is checked ( ), the width of the bent plate legs are calculated automatically. If ' Match toes ' is selected for " Ridge plate width option ," the calculated width will be greater than it would be if ' Match bf ' were selected. The read-only calculated leg width is reported as the " Bent plate leg width ."

If the box is not checked ( ), then " Bent plate leg width " becomes enabled (no longer read-only). To that entry field, you can enter a width of your own choosing.

Bent plate leg width: The distance (in the primary dimension " Units " or other units ) from the edge of the leg to the projected intersection of the top surfaces of the legs. This projected leg intellection point lies above the actual, physical apex of the bent plate -- it is not a point on the material. Both legs of the bent plate are this same " Bent plate leg width ." To change the leg width, " Auto bent plate leg width " needs to be turned off (not checked).

Warning : Entering a " Bent plate leg width " that is greater than the " Auto bent plate leg width " results in a material clash when the " Ridge plate width option " is set to ' Match bf '.

Distance from deck WP to top of ridge beam for deck to bear on ridge plate: read-only .

twp is the distance from the deck WP to the top of the ridge beam. The deck WP is the projected intersection of the top surfaces of the legs of the ridge plate. This deck WP lies above the actual, physical apex of the ridge plate -- it is not a point on the ridge plate material

The distance that is reported here updates when you change the " Roof slope " or the " Bent plate thickness " or the " Bent plate width option ." It will also change if you change the beam " Section size ."

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