Value of a Model

Last week, we received a call from a BIM-savvy architect regarding the following scenario:
They are utilizing Revit to create architectural & structural construction documents for a large project they are working on. The owner of the project didn't ask for BIM or Revit; the architect is just using it because they believe it will create some value; although, at this point, they (much like most implementing firms - A/E and GC alike) have put more into training, software and hardware than the have received in benefits.
The GC on the project recently contacted them to ask if they could purchase the model.
The architect contacted us for input on how to determine the value of the model. In our conversation, we came up with several definitions for the value of the model.
  • The difference (in cost) between creating CDs utilizing AutoCAD and creating CDs utilizing Autodesk Revit
  • The cost of having a 2D conversion done on the specific documents
Does this bring up the question of who owns the model? Should a GC even have to purchase a model?


Miguel Krippahl said...

This is something I had to give some thought too, as a BIM using architect.

The only honest answer I could come up with was to determine the cost (labor hours) between doing all the documentation in 2d and building and extracting it from a 3d model.

I found out I would have to pay my client some 30% of my fees.

So I gave the model for free...

Steve said...

Although all of the 3d model information is "there," I'm fairly sure that the families(revit) and/or parameters will not be organized in a way that the GC could just plug in a few numbers...

Sure, a little bit of time will be saved, but I'd bet that the GC will need to spend a fair amount of time getting comfortable with how the information is organized so that it will be useful for take-offs, cost est., etc.

Although it would be great to be able to charge for a model, the value is really in the communication that will result - not in the actual BIM.

Jason G. said...

This is an interesting question that will be debated for some time. We have used Revit to create BIM models for over 2 years now and started not because of clients but based on how much more we could do with the program.

Revit and other BIM programs can schedule a lot of information for GCs which saves them a lot money since they will not be scrutinizing 2D prints trying to figure out quantities. Will the client see the savings? Probably not since that amount is built into a GC's overhead.

So lets assume that the architect does send the full model to a GC.
Now, if the architect decided to put in a detail line in the drawing and not model a certain element, that element did not schedule, then who is responsible for the incorrect bid or material order on a project? The GC would need some checks and ballances to see if the schedules pulled off the drawings match the intent on the 2D drawings.

It will be interesting to see the future of how the design and construction develop as BIM develops.

风暴潮 said...

我更加倾向于评估这种3D model所体现的增值,而不是生产他所需要的成本差异。