Revit 2025.3 API

Autodesk.Revit.DB.Structure Namespace

Classes

	Class	Description
	AnalyticalElement	Base class for a structural analytical elements. AnalyticalElement represents the analytical portion of a given Structural Element.
	AnalyticalLink	An analytical link element that is used to create connections between other Analytical Elements.
	AnalyticalLinkType	An object that specifies the analysis properties for an AnalyticalLink element.
	AnalyticalMember	Represents a linear element in the structural analytical model.
	AnalyticalModelSelector	Defines a portion of an Analytical Model for an Element.
	AnalyticalNodeData	This class holds information related to analytical model.
	AnalyticalOpening	An element that represents an Opening in an Analytical Panel element.
	AnalyticalPanel	An element that represents a surface in the Structural Analytical Model.
	AnalyticalSurfaceBase	This is the base class for analytical surface elements.
	AnalyticalToPhysicalAssociationManager	Class which manages the associations between analytical elements and physical elements.
	AreaLoad	An object that represents a force applied across an area.
	AreaLoadType	AreaLoadType class
	AreaReinforcement	An object that represents an Area Reinforcement within the Autodesk Revit project.
	AreaReinforcementCurve	An object that specifies the type of a floor in Autodesk Revit.
	AreaReinforcementType	An object that specifies the type of a Structural Area Reinforcement element in Autodesk Revit.
	BendingDetailCustomFieldProperties	Represents the properties of a Bending Detail Custom Field.
	BoundaryConditions	An object that represents a force applied across an area.
	CodeCheckingParameterServiceData	The data needed by code checking server to perform code checking.
	ConnectionInputPoint	An object that holds information about a connection input point
	ConnectionInputPointInfo	An object that holds description information about a connection input point
	EndTreatmentType	An end treatment type object that is used to hold information about the end treatment applied to bars that are connected to a coupler.
	ExtElemChangeBeamSectionRegistry	An object that stores IExtElemChangeBeamSection
	FabricArea	An object that represents an Fabric Area Distribution within the Autodesk Revit project. It is container for Fabric Sheet elements.
	FabricAreaType	A FabricAreaType object is used in FabricArea object generation.
	FabricReinSpanSymbol	Represents an instance of a Structural Fabric Reinforcement Symbol in Autodesk Revit.
	FabricRoundingManager	Provides access to element reinforcement roundings overrides.
	FabricSheet	An object that represents an Fabric Sheet Element within the Autodesk Revit project.
	FabricSheetType	Represents a fabric sheet type, used in the generation of fabric wires.
	FabricWireItem	Provides implementation for FabricWires stored in a Custom Fabric Sheet
	FabricWireType	A Fabric Wire Type object that is used in the generation of Fabric Wire.
	FamilyStructuralMaterialTypeFilter	A filter used to match families that have the given structural material type.
	Hub	Represents a connection between two or more Autodesk Revit Elements.
	LineLoad	An object that represents a force/moment applied in a linear manner.
	LineLoadType	LineLoadType class
	LoadBase	The LoadBase object is the base class for all load objects within the Autodesk Revit API. Data members
	LoadCase	An object that represents a load usage.
	LoadCombination	An object that represents a load combination.
	LoadComponent	An object that represents a load combination component.
	LoadNature	An object that represents a load nature.
	LoadTypeBase	The base class for LoadTypes
	LoadUsage	An object that represents a load usage.
	MemberForces	An object that represents a member forces on analytical element.
	MemberForcesServiceData	The data needed by member forces server to perform type definition.
	PathReinforcement	An object that represents an Path Reinforcement within the Autodesk Revit project.
	PathReinforcementType	An object that specifies the type of a Structural Path Reinforcement element in Autodesk Revit.
	PathReinSpanSymbol	Represents a Path Reinforcement Span Symbol element in Autodesk Revit.
	PointLoad	An object that represents a force/moment applied to a single point. Data members
	PointLoadType	PointLoadType class
	Rebar	Represents a rebar element in Autodesk Revit.
	RebarBarType	A Rebar type object that is used in the generation of Rebar
	RebarBendData	The values in this class provide a summary of information taken from the RebarBarType, RebarHookType, and RebarStyle.
	RebarBendingDetail	Utility class with methods needed for the bending details in view. The bending detail element has two modes -- the schematic bending detail and realistic bending detail. Some functions are exclusive to one mode.
	RebarBendingDetailType	Type for rebar bending detail elements.
	RebarConstrainedHandle	A class representing a handle on a Rebar that can be joined to a reference, such as a host Element's surface or cover, another Rebar's handle or to a generic surface.
	RebarConstraint	A class representing a constraint on a handle of a rebar element.
	RebarConstraintsManager	A class used to obtain information about the constraints (RebarConstraint) acting on the shape handles (RebarConstrainedHandle) of a Rebar element, and modify the constraints.
	RebarContainer	An object that represents an Rebar Container Element within the Autodesk Revit project.
	RebarContainerItem	Provides implementation for Rebar stored in RebarContainer.
	RebarContainerIterator	An iterator to a Rebar Container.
	RebarContainerParameterManager	Provides implementation of RebarContainer parameters overrides.
	RebarContainerType	Represents a Rebar Container Type, used in the generation of Rebar Container.
	RebarCoupler	Represents a rebar coupler element in Autodesk Revit.
	RebarCoverType	A named value for a clear cover distance.
	RebarCurvesData	The class that contains the information needed to calculate and return the result of the external curve generation.
	RebarFreeFormAccessor	A class that is used to access the properties and capabilities of free-form Rebar.
	RebarHandleNameData	This class is used to contain the information about the rebar handle name defined by an external application.
	RebarHandlePositionData	The class that contains data for the handle position calculation.
	RebarHandlesData	This class is used to contain the information about the rebar handles defined by an external application.
	RebarHookType	A Rebar Hook type object that is used in the generation of Rebar.
	RebarHostData	Interface to rebar-specific data stored in each valid rebar host element.
	RebarInSystem	Represents a rebar element that is part of a system.
	RebarPropagation	An utility class containing functions that can be used to propagate rebar elements.
	RebarReinforcementData	class containing the id and the end of rebar on which the coupler stays
	RebarRoundingManager	Provides access to element reinforcement roundings overrides.
	RebarShape	RebarShape specifies the shape type for a Rebar instance.
	RebarShapeConstraint	A dimension or other constraint that takes part in a RebarShapeDefinition.
	RebarShapeConstraint180DegreeBendArcLength	A constraint which can be applied to a RebarShapeSegment, and causes the segment to be replaced with a 180-degree arc. The associated parameter drives the arc length.
	RebarShapeConstraint180DegreeBendRadius	A constraint which can be applied to a RebarShapeSegment, and causes the segment to be replaced with a 180-degree arc. The associated parameter drives the radius of the arc.
	RebarShapeConstraint180DegreeDefaultBend	A constraint which can be applied to a RebarShapeSegment, and causes the segment to be replaced with a 180-degree arc. The arc's radius is not specified by the shape; instead it is a "default bend radius," taken from the RebarBarType associated with the Rebar instance.
	RebarShapeConstraintAngleFromFixedDir	A constraint which can be applied to a RebarShapeSegment and drives the angle of the segment relative to a fixed direction in UV-space.
	RebarShapeConstraintArcLength	An arc-length constraint associated with an arc in a RebarShapeDefinition.
	RebarShapeConstraintChordLength	A constraint that can be applied to a RebarShapeDefinitionByArc and drives the straight distance between the arc endpoints.
	RebarShapeConstraintCircumference	A circumference constraint associated with an arc in a RebarShapeDefinition.
	RebarShapeConstraintDiameter	A diameter constraint associated with an arc in a RebarShapeDefinition.
	RebarShapeConstraintFixedSegmentDir	A constraint that can be applied to a RebarShapeSegment and fixes the direction of the segment in UV-space.
	RebarShapeConstraintProjectedSegmentLength	A constraint that measures the length of a segment as measured by projecting onto a direction that is not parallel to the segment.
	RebarShapeConstraintRadius	A radius constraint associated with an arc in a RebarShapeDefinition.
	RebarShapeConstraintSagittaLength	A constraint that can be applied to a RebarShapeDefinitionByArc and drives the height of the arc.
	RebarShapeConstraintSegmentLength	A constraint that controls the length of a segment.
	RebarShapeDefinition	A class to assist in defining rebar shapes. A RebarShape element needs exactly one RebarShapeDefinition.
	RebarShapeDefinitionByArc	Definition of a shape whose size and position can determined by a single arc.
	RebarShapeDefinitionBySegments	Definition of a shape in terms of one or more straight segments of rebar, with arc bends between the segments.
	RebarShapeDrivenAccessor	A class that is used to access the properties and capabilities of shape-driven Rebar.
	RebarShapeMultiplanarDefinition	A specification for a simple 3D rebar shape.
	RebarShapeParameters	Class containing functions that create and retrieve shared parameters for RebarShapes.
	RebarShapeSegment	Part of a RebarShapeDefinitionBySegments, representing one segment of a shape definition. Makes sure constraints of type RebarShapeConstraintFixedSegmentDir are uniquely set. If we try to aquire a second constraint of type RebarShapeConstraintFixedSegmentDir we delete the old one.
	RebarShapeVertex	A bend between segments of a rebar shape definition.
	RebarSplice	A class that can used to access the data between two connected Rebars.
	RebarSpliceByRulesResult	Class that encapsulates the result of the splice by rules operation.
	RebarSpliceGeometry	This class consists of a vector and a point which will be projected to the nearest Rebar curve.
	RebarSpliceOptions	This class encapsulates the options for the rebar splice operation.
	RebarSpliceRules	Describes the rules for splicing Rebar.
	RebarSpliceTypeUtils	Utility class for dealing with Rebar Splice Type operations. To find all Rebar Splice Types in the document can be done using FilteredElementCollector of category BuiltInCategory.OST_RebarSpliceType.
	RebarSpliceUtils	Class with different utilities for Rebar Splice.
	RebarSystemSpanSymbol	Represents a Rebar System Span Symbol element in Autodesk Revit.
	RebarTrimExtendData	The class that contains the information needed to calculate and return the curves in a trimmed/extended state, and also find the constraints that trim/extend it.
	RebarUpdateCurvesData	Class holding the information needed to calculate the rebar curves.
	ReinforcementAbbreviationTag	This class is used to access the Area or Path Reinforcement abbreviation tag data. It stores abbreviation tag value and abbreviation type.
	ReinforcementData	Abstract class for various reinforcement data
	ReinforcementRoundingManager	A base class providing access to reinforcement rounding overrides for structural elements.
	ReinforcementSettings	Provides access to project-wide reinforcement settings.
	ReleaseConditions	An object that represents a Release Conditions on analytical element.
	StructuralConnectionApprovalType	A type element that represents a connection approval type.
	StructuralConnectionHandler	An object of Structural Connection Handler.
	StructuralConnectionHandlerType	A StructuralConnectionHandlerType is used in StructuralConnectionHandler element generation.
	StructuralConnectionSettings	Provides access to project-wide structural connections settings.
	StructuralConnectionType	A type element that represents a connection symbol applied to structural members.
	StructuralFramingUtils	A collection of Structural Framing Utilities.
	StructuralInstanceUsageFilter	A filter used to find elements that are structural family instances (typically columns, beams or braces) of the given structural usage.
	StructuralMaterialTypeFilter	A filter used to match family instances that have the given structural material type.
	StructuralSectionsServiceData	The data needed by section type server to perform type definition.
	StructuralSettings	Provides access to project-wide structural settings.
	StructuralWallUsageFilter	A filter used to match walls that have the given structural wall usage.
	Truss	Represents all kinds of Trusses.
	TrussMemberInfo	Provides access to the information of a truss member in Autodesk Revit.
	TrussType	Represents a specific type of truss.

Interfaces

	Interface	Description
	ICodeCheckingParameterServer	Interface for the code checking parameter server to implement.
	IExtElemChangeBeamSection	Interface Change Beam section functionality to be implemented in add-ins
	IMemberForcesServer	Interface for the Member Forces server to implement.
	IRebarUpdateServer	Represents an interface that should be overridden to allow the generation and update of free form rebar geometry.
	IStructuralSectionsServer	Interface for the section type parameter server to implement.

Enumerations

	Enumeration	Description
	AlignedFreeFormSetOrientationOptions	Orientation options for Aligned Free Form Rebar set.
	AnalyticalCurveSelector	Specifies which portion of an Analytical Curve is of interest.
	AnalyticalElementSelector	Specifies a portion of an Analytical Element or the whole element.
	AnalyticalFixityState	Specifies the fixity setting of individual degrees of freedom in analytical release conditions.
	AnalyticalLoopType	Specifies kind of analytical model loop.
	AnalyticalNodeConnectionStatus	Indicates the Connections Status for an Analytical Node.
	AnalyticalRigidLinksOption	Specifies how Rigid Links will be made for the Analytical Model.
	AnalyticalStructuralRole	Indicates the structural role for the analytical elements.
	AnalyticalSupportPriority	Defines how "highly" another Element is giving support for one Element.
	AnalyticalSupportType	Indicates what kind of support another Element provides -- Point, Surface, or Curve.
	AnalyzeAs	Analyze As has various functions within the Analytical Model, and is Element-dependent. "Not for Analysis" usually means that there will not be an Analytical Model generated. The others indicate how the Analytical Model behavior will treat the Element in question. For instance "Hanger" columns have different support expectations than "Gravity" columns.
	AreaReinforcementLayerType	Describes the layers of an Area Reinforcement
	BendingDetailAngularDimensionsDisplayOptions	Describes the angular dimensions display options.
	BendingDetailAngularDimensionsMeasurementOptions	Describes the angular dimension measurement options.
	BendingDetailBendDiameterDimensionType	Describes the dimension type for bend diameter.
	BendingDetailCustomFieldMultipleValuesIndicatorOptions	Describes how the parameters with multiple values will be represented.
	BendingDetailDimensionTextPosition	Describes how the text will be positioned with respect to dimension line.
	BendingDetailDisplayMode	Describes the mode in which the Bending Detail will be represented.
	BendingDetailDisplayParametersOptions	Describes how the parameters will be represented.
	BendingDetailFor3DShapesOptions	Describes how the Bending Detail will be represented for 3D shapes.
	BendingDetailLevelOfDetail	Describes the level of detail in which the Bending Detail will be represented.
	BendingDetailSegmentLengthsDisplayOptions	Describes if the segment lengths are represented using dimensions or just as text.
	BendingDetailSegmentsRepresentation	Describes how the Bending Detail will represent the bar segments.
	BendingDetailTypeMultipleValuesIndicatorOptions	Describes how the parameters with multiple values will be represented.
	BentFabricBendDirection	Direction in which FabricSheet is bent.
	BentFabricStraightWiresLocation	Bent Fabric straight wires location. The side on wich straight wires will be loacted is determined by the start and end point of the first bent profile segment that specifies the direction of the curve loop on plane.
	BoundaryConditionsOrientTo	Specifies boundary condition orientation.
	BoundaryConditionsType	This enum declares type of BoundaryConditions.
	BracePlanRepresentation	The possible representations for braces in plan views.
	DistributionType	Obsolete. The type of the distribution
	FabricHostReference	Controls if Single Fabric Sheet should be cut by the Host Cover.
	FabricLapSplicePosition	Fabric lap splice position in the fabric distribution
	FabricLocation	Fabric location in the host
	FabricSheetAlignment	Fabric Sheet alignment in the fabric distribution
	FabricSheetLayoutPattern	The pattern for how the wires in Fabric Sheet are laid out.
	FabricTagComponentReference	How FabricSheet tag text will be aligned to the FabricSheet symbol.
	LoadCaseCategory	Specifies load case category.
	LoadCombinationState	Specifies load combination state.
	LoadCombinationType	Specifies load combination type.
	LoadOrientTo	Specifies load orientation.
	LoadType	This enum declares types of Loads.
	MultiplanarOption	Input argument type for Rebar.GetCenterlineCurves method. Controls whether all curves of a multi-planar Rebar element are returned by GetCenterlineCurves, or only the curves in the primary plane.
	RebarConstraintsStatus	Describes the status of the constraints
	RebarConstraintTargetHostFaceType	A type to help identify the individual face on a host element to which a Rebar handle is constrained.
	RebarConstraintType	The various types of constraints that can be applied to a RebarConstrainedHandle.
	RebarCouplerError	Error states for the Rebar Coupler
	RebarDeformationType	Bar deformation type
	RebarFreeFormValidationResult	Errors for the Free Form Rebar
	RebarGeometryType	Rebar geometry type
	RebarHandleBehavior	Different behaviors that can be applied to a RebarConstrainedHandle. Depending on the behavior, the RebarConstrainedHandle plane is situated in a different location All the data in constraints for a RebarConstrainedHandle with a specific behavior are relative to this plane.
	RebarHandleType	The various types of handles on a Rebar instance that can be joined to References
	RebarHookOrientation	Orientation of a rebar hook relative to the path of the Rebar Shape.
	RebarHostCategory	Rebar host category
	RebarLayoutRule	The rule for how the rebars in rebar set are laid out
	RebarPresentationMode	Bar presentation mode
	RebarShapeArcReferenceType	A Rebar Shape Definition constraint that is measured to a bend must take the bar diameter into account by specifying whether it measures to the exterior, centerline, or interior of the bend.
	RebarShapeBendAngle	A bend in a rebar shape has an angular range specified by one of these values. The angles refer to the angle swept out by one segment as it is bent relative to another. That is, an "Obtuse" bend results in two segments that meet at an angle that is less than 90 degrees when measured internally. Put another way, to create an equilateral triangle, you would need two "Obtuse" bends.
	RebarShapeDefinitionByArcType	A RebarShapeDefinitionByArc takes one of three forms.
	RebarShapeSegmentEndReferenceType	A choice of two reference points for one end of a constraint driving the length of a RebarShapeSegment.
	RebarShapeVertexTurn	Specify whether a bend at a RebarShapeVertex represents a left or right turn.
	RebarSpliceByRulesError	Class that defines states for splicing a Rebar by rules.
	RebarSpliceByRulesRunOutPosition	Describes the run-out position.
	RebarSpliceError	Class that defines states for splicing a Rebar.
	RebarSplicePosition	Describes the position of the splice.
	RebarSpliceShiftOption	Describes the way bars are shifted in the splice relation.
	RebarStyle	Describes the usage style of a RebarShape. The style affects the bend radius and the set of allowable hooks. It also affects Rebar instance auto-constraining behavior.
	RebarWorkInstructions	Describes how a Free Form Rebar will be fabricated.
	ReinforcementAbbreviationObjectType	Defines the type of desired reinforcement object for abbreviation tags.
	ReinforcementAbbreviationTagType	Defines all types of abbreviation tags for Area and Path Reinforcement objects.
	ReinforcementBarOrientation	Describes the bar orientation at Path Reinforcement.
	ReinforcementRoundingSource	An enumerated type listing the possible sources for reinforcement rounding overrides.
	ReleaseType	The release type.
	StirrupTieAttachmentType	An enumerated tye that represents how the Stirrup/Tie rebar is attached to the cover reference.
	StructuralConnectionApplyTo	An enumerated type that represents the type of structural locations to which a connection annotation may be applied.
	StructuralConnectionCodeCheckingStatus	An enumerated type listing all code checking status of the structural connection element.
	StructuralInstanceUsage	Represents the structural usage of a family instance.
	StructuralMaterialType	Represents the structural material type. This enum value is returned by Autodesk::Revit::DB::FamilyInstance::StructuralMaterialType.
	StructuralType	Represents the structural type of a family instance.
	StructuralWallUsage	Represents the structural usage of a wall.
	SurfaceElementExtension	Presets for given Analytical Extension.
	SurfaceElementProjectionZ	Presets for given Analytical Projection Z.
	TargetRebarConstraintType	A type used to identify the particular part of a Stirrup style rebar to which a Standard style rebar's handle is constrained.
	TranslationRotationValue	Specifies the type of condition applied to the translation or rotation parameter.
	TrussChordLocation	This enumerated type represents the options for the Truss Chord Location.
	TrussCurveType	Types of curves created in truss families.
	TrussMemberType	Indicates the "kind" of a truss member.
	WireDistributionDirection	Defines the direction of the distribution of wires in a Fabric Sheet.
	YJustification	The justification of the framing element in Y.
	YZJustificationOption	The option for whether a framing element has independent or uniform justification on its ends.
	ZJustification	The justification of the framing element in Z.

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