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Multi building project best practice

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Nachricht 1 von 12
ryley.g.h
4022 Aufrufe, 11 Antworten

Multi building project best practice

If working on a single site where 3 buildings are being constructed, what would be the best practice for linking all the files together within an office, so multiple people can work on the project?

 

I’ve thought of 2 possibilities:

 

  • A single central model, where every building is modeled together.
    1. This isn’t great because the model will be slow
  • A central model for the site, and linking 3 other central files (one for each building) onto the site file
    1. Is this even possible?
11 ANTWORTEN 11
Nachricht 2 von 12
SteveKStafford
als Antwort auf: ryley.g.h

Separate models for each building and site with worksharing enabled for each. This will allow you to link the buildings to the site model for real world positioning. Look into Shared Coordinates to coordinate the site with a survey. You can also link each building model into the other buildings if they are close enough to worry about seeing a portion of their neighboring building in documentation.


Steve Stafford
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Nachricht 3 von 12
pedro.hf.silva
als Antwort auf: ryley.g.h

Option 2 is better than option 1,  though I would arrange the files like this:

a) One central file for sitework, terrain, sidewalks, internal paths / streets, gardens, etc. In this file I would link the (b) file, copy it 2 more times and position the copies correctly.

b) One central file for the building with only commom area modeled (by common área I mean halls, stairs, elevators and everything not private). In this file I would link, copy and position the (c) files.

c) Residential units: everything that repeats should be a link so, I would create a .rvt for each different residential unit and link them in the (b) file.

 

Hope it helps!

Pedro Henrique Fonseca e Silva
Direcional Engenharia S/A | Podcast BIMCafé
Belo Horizonte, BR
Nachricht 4 von 12
Redrunner92
als Antwort auf: pedro.hf.silva

This sounds like a wonderfully streamlined way to set this up when considering that repeated spaces are convenient to place in their larger contexts as links. However, pragmatically speaking, is there a point when a collection of .rvt files gets too deep into Link-ception? Is there a case to make that three layers (site > building common space > multiple residential units) multiplied by multiple buildings (which would be the second layer) is more files than necessary?

I can see the size of a company weighing heavily in this discussion. A company with 50+ drafters could likely devote the manpower and organization of responsibilities needed to keep the three-layer approach effective, while a 12-person company might struggle to remain organized since likely each employee has their own set of projects. What do you think?

(Also, the original poster didn't mention their project is a residential project; multiple office buildings with, say, seven or more office layouts in each would increase the difficulty of organization greatly.)

Nachricht 5 von 12
SteveKStafford
als Antwort auf: Redrunner92

I do not encourage anyone to go down the linked file path for unit repetition. Linked files degrade file open performance significantly and introduces far more complicated view by view management for each and every link. Groups are for Unit repetition.


Steve Stafford
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Redrunner92
als Antwort auf: SteveKStafford

Thanks for your feedback, Steve. I've been using Groups to multiply units within a space also, though I do not have much experience with multi-unit buildings so I have not dealt with pros and cons of the different methods. I can easily see your point about slowing performance, so that alone gives me confidence to continue using Groups. Your second point about making editing the units more difficult is also a great one to note.

Nachricht 7 von 12
SteveKStafford
als Antwort auf: Redrunner92

Linked files are tempting because they are a easily recognizable technique from other software. Groups were specifically design and intended to deal with repetition like units. In Revit's world a model is intended to be a single model (if we ignore the reality of different disciplines and separate firms). This provides the greatest integration between objects (walls/doors/windows) and data (views/sheets/annotation). As soon as any of this is a separate file a significant penalty is incurred; slower to open the host file, tags and dimensions become fragile, view management is more complicated and individual element requirements for documentation are harder to overcome...to itemize a few.


Steve Stafford
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Nachricht 8 von 12
ryley.g.h
als Antwort auf: SteveKStafford

Thanks for the info, this was pretty much what I wanted to do, but wasn't sure if linking multiple central files was feasible/possible.

Nachricht 9 von 12
pedro.hf.silva
als Antwort auf: Redrunner92

@Redrunner92  I think the problem is not with files or workspace organization, actually, organization is the key benefit of the linkception way. The real problem comes from performance, as mentioned by @SteveKStafford , especially when working with BIM360.

 

We went the linkception (love the word) way and, as for project portfolio control and cutting off all rework not having it brings, we are wining. But the performance thing is starting to annoy the hell out of us.

 

I still believe working with links is the "correct" way. Especially when you consider company size (we deal with some 1200 project teams across our country/year) we desperately need control over our building’s portfolio. But there are lots of learning and lots of work to do before we can make it runs smoothly, oh yes.

Pedro Henrique Fonseca e Silva
Direcional Engenharia S/A | Podcast BIMCafé
Belo Horizonte, BR
Nachricht 10 von 12
aswain
als Antwort auf: pedro.hf.silva

Follow-up question on the linked model concept:  are you documenting each building via sheets within each building file, or are you documenting the entire project in a single, master documentation file (this could be one of the building files, or even the site file)?

 

This is related to leveraging Revit's documentation tools (sheet index, legends, section/elevation links, etc.).  The alternative is doing some PDF assembly on the back end--doable, but another step--so wondering what approach others have found the best success with.

Nachricht 11 von 12
SteveKStafford
als Antwort auf: aswain


@aswain wrote:

Follow-up question on the linked model concept:  are you documenting each building via sheets within each building file, or are you documenting the entire project in a single, master documentation file (this could be one of the building files, or even the site file)?


Yes. Treat each building as a complete project. If sheets need to be compiled to submit an entire project at one time that's easy to do with PDF applications like Bluebeam, just manage the sheet numbering so each building has its own number sequence. Then IF the project gets split up for construction sequencing or financing the project is already prepared that way.


Steve Stafford
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Nachricht 12 von 12
Alfredo_Medina
als Antwort auf: ryley.g.h

Hello, I just want to add something to this thead that I don't see it mentioned yet. For those of you who work with links and BIM360, be aware that an important limitation to keep in mind is that  nested links disappear in BIM360. For example, if you have a link of a "floor" where you link "units" and then you link the "floor with units" into a "building", your units won't be visible in BIM360. 


Alfredo Medina _________________________________________________________________ ______
Licensed Architect (Florida) | Freelance Instructor | Profile on Linkedin

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