Modelling elements

1) Reposition/reorientation of a whole tower within a REVIT file seems inadvisable. Anyway to make it possible without issue?

Autodesk) When working on a project that consists of multiple towers on a single site, it is often best practice to set up the tower file separately and link that file into the site file. This allows the user to have more flexiblity when repositioning and reorienting a tower. You can then easily change the coordinants without issue. It is always best to try and set up coordinates and orientation early in a project to avoid issues. If you are already  quite far into a project in terms of annotations etc. physically moving a model often means 2D information gets left behind. It is better in this instance to use the coordinates/position tool on the Manage Tab.

2) Disallow pinned objects (esp. Grids) from being accidentally deleted. May be introduce a “LOCK”?

Autodesk) Datum elements such as grids/levels form the basis of a project and often a BIM manager will want to ensure that these elements are ‘locked’ to avoid a team member accidently moving or deleting them. Within an internal project team where worksharing has been enabled it is possible for these elements to be assigned to a specific workset – owned and managed by one user eg. Model Manager. Becasue this element is owned no other user within the team will be able to make modifications/deletions to that workset. For standalone files these elements can be saved as a separate project file (shared grids and levels) and linked back into the project. This method is useful if you have multiple consultants collaborating, In this scenario the file is linked in and the copy monitor tool is used to duplicate grids and levels within the project file. This ensure that when someone accidentally tries to  as they can copy monitor -ensuring that if they accidently try to delete the link a warning appears on the screen.

3) Finish Floor Level and Structure Floor Level. There is no issue for FFL,but SFL is still a manual input with modification to the default parameter information. When SFL is required to be shown

Autodesk) This question is unclear. In general, levels in a Project are added as Architectural Levels, whereas after linking the architectural model in the structural project, additional levels such as SFL can be created.

4) Beams and columns cannot have a custom end. Model in place walls was used to create angled endings or circular walls with openings that could not be created with the wall opening command due to the design

Autodesk) Wishlist Item. Provision of custom angle endings and joints

5) When walls joints in acute angle and one of the wall’s height is lower than the others, the end of higher walls follow the clean-up angle with the lower wall

Autodesk) This is true.when the wall angle is less than 20 degrees the wall join automatically changes to a mitre join. This is an issue if you want there to be a square off join. This item has been raised previously as a wishlist and has been put through to development.

6) The walls below the circular ramps cannot be trimmed to the soffit of the ramps.

Autodesk) Work around is to use the floor tool to create the ramp as the wall will attach to the floor. Alternatively you can create a reference plane to attached the wall to, not the cleanest option but if the ramp and wall are the same material you can use the join tool to clean it up.

7) Ramps do not follow the actual construction. In actual construction the levels of the inner edge will be always lower compared to the levels of the outer edge of the ramp.

Autodesk) Wishlist item. For accurate levels you can use the floor tool as opposed to the ramp tool.

8) Circular ramp – The inclination of the outer radius and inner radius is not consistent. For some of the areas, the outer radius is lower than the inner radius when the outer radius is supposed to be higher generally

Autodesk) Alternatively, use in-place modeling via Sweep

9) Beams/parapet walls cannot be created along the edge of the ramp to follow the slope. It has to be created as an in-place object.

Autodesk) A work around is to create a beam/parapet wall as part of the railing family.

10) Any enhancement for curved designs, slanted & tapered columns, irregular shaped trusses? Currently, these are limited to grid geometry

Autodesk) Wishlist item, please provide samples of desired shapes

11) Curved beam

(a) Curved beam is not able to join with straight beam.

(b) Even if it is joined, the joining part is not smooth.

(c) The opening by face method is not working on curved beam.

Autodesk) Please provide a sample model file

12) Beam deletion – Some times, the beam is not able to be deleted after it joined with other element like slab

Autodesk) Please provide a sample model file

13) REVIT 2012 sometimes automatically assumes that some members are grouped together. For instance, a slab and beams are drawn at L1 and a column extending to L2. Then another slab and beams are drawn above at L2. REVIT identifies the relationship of these elements such that when the beam alignment at L2 is modified, the beam at L1 shifts/rotates together. Abortive work for drafters to keep checking on the previous element whether it has been unknowingly changed.

Autodesk) Please provide a sample model file

14) Introduce a “long columns family”, to model like walls. It will reduce the need to create many column types.

Autodesk) Columns Sizes are supposed to be standard size in practice.

15) Cannot create circular slab (plan view)?

Autodesk) Circular slab Creation: Bug in Revit 2013, escalate to development.

16) When a curved face of a mass element is converted into a curtain wall, the curtain wall follows the direction of the curve. It is ok if the wall is curved in the plan view, but if the curve occurs in the section view, then doors located on the curved wall are rotated on their side parallel to the floor.

Autodesk) On hold, check with Product Support

17) Curtain Wall Panel Issue: The irregular curtain wall does not allow the same glaze material to be used with the rest of the regular shaped curtain wall. The work around is by manually using a glaze replacement but it will end up with a different glaze material/color.

Autodesk) The glaze material should be the same.

18) Custom railing for the stairs do not clean up nicely on the turns

Autodesk) Refer to best practices for stairs and railings

19) Staircases, especially steel staircases, are difficult to define. But that’s not a technical problem, just commenting that REVIT is not user-friendly enough to define staircases more easily.

Autodesk) Modelling stairs now come in two options, by Component or By Sketch in Revit 2013

(image: Autodesk)

20) Topography / earth and soil presentation in section

(image: SAA Architects Pte Ltd)

Autodesk) Topography (Site Grading) has to be done in AutoCAD Civil 3D and imported into Revit.

21) Surveyor drawings. 3D points are required to create the existing site terrain, and the important levels (for example: invert level, pavement level, etc) normally are not in 3D. So when a cutting line is created along the site where it cuts the drain, it will not shown in the section. Eventually it has to be manually drawn, again this will make it prone to error or mistakes.

Autodesk) Need to import 3D Survey points to generate 3D Topo in Revit or in Civil 3D

22) Drainage modelling

(image: SAA Architects Pte Ltd)

Autodesk ) Drainage Modelling should be done in AutoCAD Civil 3D.