Structural Column Instance Properties

To change instance properties, select the element and change its properties on the Properties palette.

Name	Description
Constraints
Column Location Mark	The coordinate location of a vertical column on the project grid.
Base Level	Constraining level of the column base.
Base Offset	Offset of base from base level.
Top Level	Constraining level of the column top.
Top Offset	Offset of top from top level.
Moves With Grids	Changes the vertical column constraint to the grid. See Locking Columns to a Grid.
Move Top With Grids	Constrains the top endpoint of the slanted column to the grid.
Move Base With Grids	Constrains the base endpoint of the slanted column to the grid.
Top Cut Style	Either Perpendicular, Horizontal, or Vertical. Specifies the cut style at the top of the column when unattached to a reference or element.
Top Extension	Offset of the top of the column when unattached to a reference or element.
Base Cut Style	Either Perpendicular, Horizontal, or Vertical. Specifies the cut style at the base of the column when unattached to a reference or element.
Base Extension	Offset of the base of the column when unattached to a reference or element.
Column Style	Either Vertical, Slanted - End Point Driven, or Slanted - Angle Driven. Specifies the slant style of the column which enables type specific modification tools. See Modifying Slanted Structural Columns.
Base Geometry Alignment	Either Location Line, Top of beam, Bottom of Beam, or Center of Beam. Specifies the working point along an attached beam to which the centerline of a slanted column adjusts at its base.
Top Geometry Alignment	Either Location Line, Top of beam, Bottom of Beam, or Center of Beam. Specifies the working point along an attached beam to which the centerline of a slanted column adjusts at its top.
Base is Attached	Read-only parameter specifying that the base of the column is mid-joined to a beam or attached to a structural floor or roof.
Attachment Justification At Base	Either Minimum Intersection, Intersect Column Midline, Maximum Intersection, or Tangent. Specifies the degree of cutback or tangential justification at the base of the column at the join.
Offset From Attachment At Base	Offset of the base of the column from the mid-joined beam or attached elements.
Top is Attached	Read-only parameter specifying that the top of the column is mid-joined to a beam or attached to a structural floor or roof.
Attachment Justification At Top	Either Minimum Intersection, Intersect Column Midline, Maximum Intersection, or Tangent. Specifies the degree of cutback or tangential justification at the top of the column at the join.
Offset From Attachment At Top	Offset of the top of the column from the mid-joined beam or attached elements.
Room Bounding	Changes column constraint to room-bounding conditions.
Materials and Finishes
Structural Material	For more information, see Material Structural Classes.
Structural
Top Connection	Applies to steel columns only. Turns on the visibility of a moment or shear connection symbol. The symbols are visible only in elevations and cuts parallel to the main axis of the column in coarse view.
Base Connection	Applies to steel columns only. Turns on the visibility of the base plate symbol. The symbols are visible only in elevations and cuts parallel to the main axis of the column in coarse view.
Enable Analytical Model	Displays the analytical model and includes it in analytical calculations. Selected by default. See Disabling the Analytical Model.
Top Attachment Type	Either Distance or Ratio. Determines if the top join of a slanted column is measured as a distance or a ratio of the length of the beam.
Top Attachment Distance	Distance from the referenced end of the top attached beam to the join location on the slanted column.
Top Attachment Ratio	The ratio of distance from the referenced end of the attached beam to the top join location on the slanted column to the total length of the beam.
Top Attachment Reference End	Either Start or End. Specifies the end of the top attached beam from which to calculate distance or ratio.
Base Attachment Type	Either Distance or Ratio. Determines if the base join of a slanted column is measured as a distance or a ratio of the length of the beam.
Base Attachment Distance	Distance from the referenced end of the base attached beam to the join location on the slanted column.
Base Attachment Ratio	The ratio of distance from the referenced end of the attached beam to the base join location on the slanted column to the total length of the beam.
Base Attachment Reference End	Either Start or End. Specifies the end of the base attached beam from which to calculate distance or ratio.
Rebar Cover - Top Face	Applies to concrete columns only. Sets the rebar cover distance from the column top face.
Rebar Cover - Bottom Face	Applies to concrete columns only. Sets the rebar cover distance from the column bottom face.
Rebar Cover - Other Faces	Applies to concrete columns only. Sets the rebar cover distance from the column to other element faces.
Estimated Reinforcement Volume	Specifies the estimated reinforcement volume of the selected element. This is a read-only parameter that only displays when rebar has been placed.
Dimensions
Volume	Volume of the selected column. A read-only value.
Identity Data
Comments	User comments.
Mark	A label created for the column. Possible use: shop mark. This value must be unique for each element in a project. Revit warns you if the number is already used but allows you to continue using it. You can see the warning using the Review Warnings tool. For more information, see Reviewing Warning Messages.
Phasing
Phase Created	Indicates in which phase the column component was created. For more information, see Project Phasing.
Phase Demolished	Indicates in which phase the column component was demolished. For more information, see Project Phasing.
Identity Data (Analytical Columns)
Member Number	An identifier created for the analytical member. This value should be unique across Analytical Beams, Analytical Braces and Analytical Columns in a project. Revit warns you if the number is already used but allows you to continue using it. You can see the warning using the Review Warnings tool. See Reviewing Warning Messages.
Comments	User comments.
Structural Analysis (See Structural Analytical Model Overview.)
Top Release	Either Fixed, Pinned, Bending Moment, or User-Defined. User-Defined allows you to enable/disable each of the top release conditions.
Top Fx	Translational release at the top end of the column along the x-axis.
Top Fy	Translational release at the top end of the column along the y-axis.
Top Fz	Translational release at the top end of the column along the z-axis.
Top Mx	Rotational release at the top end of the column along the x-axis.
Top My	Rotational release at the top end of the column along the y-axis.
Top Mz	Rotational release at the top end of the column along the z-axis.
Bottom Release	Either Fixed, Pinned, Bending Moment, or User-Defined. User-Defined allows you to enable/disable each of the bottom release conditions.
Bottom Fx	Translational release at the bottom end of the column along the x-axis.
Bottom Fy	Translational release at the bottom end of the column along the y-axis.
Bottom Fz	Translational release at the bottom end of the column along the z-axis.
Bottom Mx	Rotational release at the bottom end of the column along the x-axis.
Bottom My	Rotational release at the bottom end of the column along the y-axis.
Bottom Mz	Rotational release at the bottom end of the column along the z-axis.
Analyze As	Either Hanger, Gravity, Lateral, or Not for analysis. Used by external analysis applications to determine whether the column contributes to lateral analysis.
Analytical Model
Analytical Links	A frame element that can be set to fully rigid or released in global directions. When Analytical Links are enabled, an additional analytical segment is engaged in the model between the end of the analytical model of a beam and the analytical model of a column. See Analytical Link.
Analytical Properties
Family Type	The family type of the element.
Physical Material Asset	The name of a physical asset assigned to the column material (read-only).
Length	The length of the analytical model.
Cross-Section Rotation	The clockwise rotation angle of a slanted column (viewed from top to base). This angle can be carried out to 3 decimal places. Negative numbers rotate counterclockwise. If a slanted column is in a vertical state, then this rotation is measured from Project North. Otherwise, it is measured from the vertical position.
Analytical Alignment
Top Alignment Method	Either Auto-Detect or Projection. Specifies if the horizontal and vertical references of the column top are automatically justified or have a defined projection.
Top x Projection	Either Location Line, Left of Element, Center of Element, Right of Element, <Grids...> , or <Reference Planes...>. Available when Top Alignment Method is specified as Projection. Specifies the horizontal limits of the analytical model at the top of the column.
Top y Projection	Either Location Line, Top of Element, Center of Element, Bottom of Element, <Level...>, or <Reference Planes...>. Available when Top Alignment Method is specified as Projection. Specifies the vertical limits of the analytical model at the top of the column.
Top Extension Method	Either Auto-Detect or Projection. Specifies if the vertical extension of the column top is automatically justified or have a defined projection.
Top z Projection	Either Top Level Reference, Top of Column, <Level...>, or <Reference Planes...>. Available when Top Extension Method is specified as Projection. Specifies the vertical extension limits of the analytical model at the top of the column.
Base Alignment Method	Either Auto-Detect or Projection. Specifies if the horizontal and vertical references of the column base are automatically justified or have a defined projection.
Base x Projection	Either Location Line, Left of Element, Center of Element, Right of Element, <Grids...>, or <Reference Planes...>. Available when Base Alignment Method is specified as Projection. Specifies the horizontal limits of the analytical model at the base of the column.
Base y Projection	Either Location Line, Top of Element, Center of Element, Bottom of Element, <Level...>, or <Reference Planes...>. Available when Base Alignment Method is specified as Projection. Specifies the vertical limits of the analytical model at the base of the column.
Base Extension Method	Either Auto-Detect or Projection. Specifies if the vertical extension of the column base is automatically justified or has a defined projection.
Base z Projection	Either Base Level Reference, Bottom of Column, <Level...>, or <Reference Planes...>. Available when Base Extension Method is specified as Projection. Specifies the vertical extension limits of the analytical model at the base of the column.