ACP Revit Structural key terms

A simplified structural representation of physical elements used for analysis, with its own nodes, members, and boundary conditions. It can be enabled on structural elements and adjusted independently of the physical geometry.

A point in the analytical model where members connect or where supports and loads are applied. Nodes carry coordinates and connectivity information that the analysis engine reads.

Constraints assigned to analytical nodes to represent supports, such as fixed, pinned, or roller. They define how the structure resists movement and directly affect analysis results.

A defined set of loads applied to the analytical model, such as dead, live, or wind. Load cases are combined into load combinations for design checks and analysis runs.

A setting that controls whether analytical members follow the physical model's centerlines or defined offsets. Correct alignment keeps analytical geometry consistent when physical elements move or change size.

A vertical load-bearing element modeled with a structural category so it participates in analysis and schedules. Its base and top constraints tie it to levels and allow automatic height adjustment.

A beam or brace element modeled along a work plane or between supports. Its structural role, material, and cross-section drive analysis and framing schedules.

The level or reference plane that fixes the bottom of a vertically modeled element, such as a column or wall. Changing it moves the element's start in the model.

The level or reference plane that fixes the upper end of a vertical element. Combined with top offset, it controls overall height and attachment behavior.

A horizontal datum representing a floor or reference elevation in the project. Levels host elements, drive constraints, and organize views and schedules by height.

A system of named reference lines used to locate and align structural elements in plan and elevation. Grids can be curved or straight and appear across multiple views.

A non-plotting construction line used to define work planes, host elements, and drive parametric behavior in families. It is a foundational modeling aid rather than visible geometry.

The active surface or plane on which new elements are sketched or placed. Setting a work plane correctly is essential for modeling elements at the intended orientation and elevation.

A material assigned to structural elements that carries properties such as strength, density, and behavior class. Material assignments feed schedules, analysis, and visual overrides.

A category of similar elements sharing parameters and behavior, from which types are created. Families can be system, loadable, or in-place and determine how elements are edited.

A specific variation within a family, defined by fixed parameter values such as size or material. Placing a type creates instances that share those type-level settings.

A parameter whose value applies to every instance of a family type. Changing it updates all placed instances of that type at once.

A parameter whose value can differ for each placed element, such as a mark or offset. Instance values override nothing at the type level but vary per occurrence.

A parameter definition stored in an external file so it can be added consistently to families, projects, and schedules. Shared parameters enable reliable tagging and data exchange.

A parameter added to categories within a single project file, available for scheduling and tagging. It is not automatically present in other projects or families.

A tabular view that extracts element data, such as framing sizes or material quantities, from the model. Schedules update automatically as the model changes and can be placed on sheets.

An annotation label attached to a model element that displays selected parameter values, such as a beam mark. Tags follow their host and can be added automatically for a category.

View-specific text, dimensions, symbols, and tags that communicate design intent without being part of the building geometry. Annotation scales with the view and appears on sheets.

A printable layout that hosts views and schedules at a defined paper size, with a title block. Sheets organize construction documents and are issued as a set.

The placed instance of a view on a sheet, controlling its position and scale on the page. Viewports can be moved, aligned, and labeled independently of the view itself.

A saved collection of view settings, including visibility, graphics, and discipline, applied to multiple views. Templates enforce consistent documentation standards across a project.

A set of horizontal planes, such as cut plane and view depth, that determine what is visible in a plan view. Correct view range prevents missing or misleading structural elements.

A collaboration method that splits a central model into worksets so multiple users can edit simultaneously. Users synchronize with the central file to publish and receive changes.

A logical grouping of elements used to manage ownership and visibility in a workshared project. Worksets help teams divide modeling responsibilities and control what loads.

The master copy of a workshared project that users access through local copies. Synchronizing with it merges changes and keeps the team's work coordinated.

The process of finding geometric conflicts between elements, such as structure versus ducts, often using exported or linked models. Resolving clashes before construction reduces field conflicts.

A reference to another model, such as architectural or MEP, displayed within the current project without merging its elements. Links support coordination and can be used for copy/monitor.

A coordination workflow that copies elements from a linked model and tracks changes between the copies and originals. It alerts users when monitored elements move or are deleted.

A reference point defining the project's internal coordinate origin and shared positioning. It anchors the model relative to survey coordinates and other linked models.

A point representing a known real-world location used to position the model geographically. It relates the project to site coordinates and civil data.

A coordinate system published and acquired between models so links align correctly on site. Consistent shared coordinates prevent misplacement of linked structural and architectural models.

A family placed on sheets that holds project information, sheet numbers, and revision data. It frames the drawing area and is typically standardized across a project.

A tracked change issued to a drawing set, recorded on sheets and in revision schedules. Revisions carry numbers, dates, and descriptions for document control.

A unique element modeled directly in the project rather than from a loadable family template. It suits one-off geometry but is harder to schedule and reuse than standard families.