From the course: The BIM Execution Plan for Architects

Basic modeling requirements - Revit Tutorial

From the course: The BIM Execution Plan for Architects

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Basic modeling requirements

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- [Instructor] If the contractor is to use the model for clash detection, there are some basic modeling requirements that the architect and their consultants should meet. Basically, each team has responsibilities to ensure the design intents are capable of being coordinated in three dimensions using fabrication-level modeling. Architects should put ceilings at the correct height, MPE teams should model ductwork at the correct size, and structural teams should model beams at the accurate depth for the project. If you notice, there is a trend here. Anything that encloses, shields, or confines mechanical systems should be modeled accurately. This will allow 3D coordination to effectively occur. The architect should ensure their exterior walls and interior partitions are modeled to the correct construction and the correct height. If the partitions are full height, they should be modeled full height. If they are partial height or just above the ceiling, they should be modeled as such. Ceilings should all be modeled at the correct height, and the floor-to-floor elevations should be accurately modeled. These are the modeling elements that affect the plenum. Other elements that should be modeled are the shafts and the floor openings. The MPE team should model their ducts at the right size and height. The plumbing engineer should model their plumbing lines with the appropriate slope. And the electrical engineer, at a minimum, should show their lighting with the correct housing sizes, with locations coordinated with the architectural model. For all three consultants, showing clearances would be a more advanced modeling development, especially if those clearances are shown with a transparent block so they do not affect the drawings but they can be used for clash detection. Structurally, the engineer should show the beams at the correct size and location. Typically, the connection plates are not shown during design, but the architect should keep these elements in mind when designing. The structural engineer should also model the floor slabs at the correct thickness, with slab openings coordinated with the other consultants and appropriately structured. In review, the basic modeling requirements for the architect are correctly sized plenums and shafts, the MPE team must work within those plenums and shaft, and the structural must respond appropriately to the architecture so there's a rational structure to work around.

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