Scott Green, Senior Project Engineer – The real question when it comes to Building Information Modeling is how do we use the pretty BIM pictures for the benefit of the project, owner, construction manager and subcontractors? After all, if there’s not an overall benefit to the project, it’s just waste (sounding a little Lean, huh? More about that later).
So how do you utilize these pretty pictures for real benefits? MEP coordination is the typical first use of BIM for many, and for us at Tarlton, too. After being involved with several coordination efforts, I’ve learned the construction manager must be extremely active in the process for the project as a whole to succeed. Here are my tips:
Review the model. I know, I know, what knowledge can a CM provide on complicated MEP systems? Sometimes it is the outsider who can see past the clutter and help start the thinking down the path to success. You also build an understanding of what the collective team is going through and appreciate the heroics they have already performed.
Manage the process. Just like building for real, MEP coordination requires management. Why is the electrician not done with his work on the 3rd floor? Is this because a RFI is not answered? Is he waiting on someone else? Not enough manpower? Architect changing the design? All the same issues that occur in the field (except maybe rain) can affect the coordination as well. Don’t be lulled into believing the issue can be resolved “in the field.” Which is better: resolving the issue now while excavation is still under way or waiting until three crews are stopped dead in the field? Better understanding of the work earlier in the project is a win for everyone involved.
Files! Using BIM creates a lot of electronic files, and you need to be able to control them. Unlike drawings, specifications and RFIs, BIM files cannot be printed and kept at the plan table for all to see. They must be stored electronically. Think about naming structures, file structures, archiving of data, and most importantly, how to keep everyone up to date. Nothing can be more discouraging to a BIM operator than to realize the last 2 days were wasted because they were working off of old files.
Remember, BIM is a process that must be managed, and the best way to manage is to be involved.