Mounting Angle - Intergraph Smart 3D - Reference Data

Intergraph Smart 3D Structural Detailing Reference Data

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Reference Data
Smart 3D Version
12 (2018)

The mounting angle between two objects is used often in bevel calculations. The mounting angle is accessed from the StructDetailObjects.PhysicalConnection wrapper class or the StructDetailObjectsEx.SDOPhysicalConn wrapper class. There are four properties that may be used to get the angle:

StructDetailObjects.PhysicalConnection.GetConnectionAngle() is used in the tee weld selector to calculate the mounting angle when a plate or stiffener edge is connected to the face of another plate or stiffener.

Bounding Object

The angle is measured to the connected side of the bounding object, whether that is BASE/OFFSET, WEB_LEFT/WEB_RIGHT, and so on.

Bounded Plate

For a bounded plate, TeeMountingAngle is always measured to the base side of the plate, which is also the ReferenceSide. The ReferenceSide can be Molded or AntiMolded.

Bounded Profile/Member

For a bounded profile or member, the mounting angle is measured to the WEB_LEFT face of the profile if the connection is on a web cut or to the BOTTOM face of the profile if the connection is on a flange cut.

Stiffener to Stiffened Plate

For a stiffener to its stiffened plate, the stiffener is considered the bounded object. For a typical stiffener mounted by the bottom face, the reference face on the stiffener is the WEB_LEFT face.

Angle Returned

The angle is returned as shown in the following figure, using the reference face as defined previously. The angle can be greater than 90 degrees, depending on which side of the bounded object is the reference side.

Mixed edge-to-edge Connections

Connections are treated as TEE connections for mounting angle calculations. This means that the angle returned for the member or profile bounded by a plate edge or a plate bounded by a member or profile edge is as follows (using the reference side as defined above for the bounded object).

This only applies to mixed connections. Butt connections between like types (plateEdge-to-plateEdge, profileEnd-to-profileEnd, memberEnd-to-memberEnd, or memberEnd-to-profileEnd) are treated as BUTT connections. For more information, see Butt Weld Selector Example.

StructDetailObjects.PhysicalConnection.CornerButtMountingAngle or TeeMountingAngle (above) can be used to calculate the angle between two plates that are connected edge-to-edge. For angles less than 90 degrees, both methods return the same value. For calculated angle values approaching or greater than 90 degrees, the CornerButtMountingAngle returns 0. This property is used in the butt weld selector, and it is of particular importance during the calculation of bevels on knuckled plates. It is defined on StructDetailObjects.PhysicalConnection.

Angle Returned (Plate)

The angle returned for plates is as shown in the following figure. It always returns the angle on the outside of the knuckle, not the inside angle. CornerButtMountingAngle returns 0 if this angle approaches or exceeds 90 degrees. Use TeeMountingAngle if you want the angles that approach or exceed 90 degrees for these cases.

Angle Returned (Profile)

The angle returned for profiles or members is as shown in the following figure. It always returns the angle on the outside of the knuckle, not the inside angle. It also only returns the angle between the WEB planes. For more specific information from profiles, refer to the methods below that can return the WEB or the FLANGE angle. CornerButtMountingAngle returns 0 if this angle approaches or exceeds 90 degrees. Use TeeMountingAngle if you want the angles that approach or exceed 90 degrees for these cases.

StructDetailObjectsEx.SDOPhysicalConn.ProfileWebButtAngle

This method only provides a valid answer for an end-to-end connection between two profiles or members or a member to a profile end-to-end. This method provides the angle between the web planes of the profiles or members, as shown in the following figure. This is the same result returned by TeeMountingAngle for these specific cases.

The angle is always returned in the range of 0<=angle<=180 degrees. It is always referenced to the outside of the bend or miter, rather than a specific face of the profile (LEFT or RIGHT).

If this is not an end-to-end connection between two profiles or members, the method returns a value of 0.

StructDetailObjectsEx.SDOPhysicalConn.ProfileFlangeButtAngle

This method only provides a valid answer for an end-to-end connection between two profiles or members or a member to a profile end-to-end. This method provides the angle between the flange planes of the profiles/members, as shown in the following figure.

The angle is always returned in the range of 0<=angle<=180 degrees. It is always referenced to the outside of the bend or miter, rather than a specific face of the profile (TOP or BOTTOM).

If this is not an end-to-end connection between two profiles or members, the method returns a value of 0.

This method returns the flange angle, even if the profile has no flanges (such as a flat bar).