What's New in Structural Engineering with Revit 2016

BIM Software Tip: Structural Engineering Enhancements in Revit 2016

Steel Profile: The structural column and frame elements within the structural section category now include new dimensional parameters for columns and frames.

Elevation Parameters: The following fields enhance annotation and scheduling capabilities:

• Top elevation (applicable to beams, supports, structural floor slabs, and foundation slabs)
• Top core elevation (for multi-story structural floors and foundation slabs)
• Bottom core elevation (for multi-layer structural floors and foundation slabs)
• Bottom elevation (beams, supports, structural floor slabs, and foundation slabs)
• Reference elevation (beams and supports)

Release and Component Forces: To accelerate documentation, connection design, and detailing, you can now specify the components and forces for columns, beams, and supports. This information can be recorded in detailed tables and added to annotation tags.

Truss Chord Rotation: When rotating a truss, you have the option to either rotate the truss chords along with the truss or align them with the truss placement plane.

Local Coordinate System (LCS): New enhancements aid in load processing and analysis:

• The LCS widget is now visible on curved beams and curved walls.
• When applying a primary load along the local coordinate system direction of the main element, an LCS control appears on the element to indicate the load direction.
• Loads on curved analysis elements are now properly displayed along the local coordinate system direction.

Regional Load Enhancements:

• Main surface loads can now be applied to curved surfaces of curved walls.
• Projected surface loads can be applied by selecting the “Projection Load” parameter, ensuring loads are scaled correctly according to the projection angle.

Reinforcement Display Performance: To improve performance and speed up view opening and updating, Revit now regenerates only the reinforcement visible on screen. Additionally, when steel bars appear very small, they are displayed as simplified lines regardless of the view’s level of detail.

Reinforcement Placement Features:

• Reinforcement Offset: In the “Reinforcement Restriction Conditions” dialog, you can specify constraints on the reinforcement relative to the main element and set offset distances from the cover.
• The “Reinforcement Restriction Conditions” dialog now allows zooming, panning, and view adjustments without closing the window.
• Reinforcement Rounding: When setting default rounding for reinforcement, you can choose to round to the nearest increment, the next higher increment, or the next lower increment.
• Lock Steel Bars Parallel to Main Surface: While placing reinforcement bars, holding the Shift key lets you lock bars parallel to any main surface for precise placement.
• Steel Bar Shapes in Path: To enhance concrete reinforcement detailing, you can specify shapes for main and distribution bars within the path steel bar system.

Reinforcement List Improvements: To improve reinforcement documentation, you can now include the following parameters and fields in lists and tags:

• The main tag displays the name of the structural element carrying the reinforcing steel.
• The number of entities shows how many identical structural elements contain reinforcement.
• “Quantity Calculated by Graphic Elements” displays the total number of steel bars calculated per entity.

Structural Analysis Toolkit for Autodesk® Revit®: This toolkit introduces several enhanced features:

• Gravity Analysis: Beyond static analysis, gravity analysis infers load flow paths and determines how vertical loads transfer from the top to the bottom of the model.
• Result Browser: Allows viewing and browsing of different gravity analysis result types.
• Execution Analysis: Supports batch processing of multiple analyses simultaneously. In the “Analyzing in the Cloud” dialog, you can specify analysis types and parameters for multiple runs.

3D Structure Viewer (Website):

• Displays results from both static and gravity analyses, including detailed component and surface results shown in the Local Coordinate System (LCS).
• Supports gesture controls on mobile devices for zooming, panning, and rotating models.

Project Page (Website): Enables sharing of analysis results with collaborators. Collaborators can view analysis results and reports but cannot edit or download them to the Revit project. They may choose to download the Robot model including the results.

Panel (Website): Access Autodesk® 360 Structural Analysis panel via Analysis Tab > Structural Analysis > Open Panel on the website.

List (Website): Enable or disable message lists related to ongoing analyses through Analysis Tab > Structural Analysis > Message.

Revit Robot Integration:

• When updating a Revit model with changes in cross-sectional dimensions, the link checks compatibility between Robot cross-section sizes and family types loaded into the Revit project. Compatible family types are used to update the model accordingly.
• You can specify which levels in Revit correspond to floor levels in the Robot model and which levels serve as structural axes.
• During linking, load directions are transferred and displayed in either the local or global coordinate system, depending on their definition in Revit.

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