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When I first went to REVIT training a few years back, this was my initial scary thought too - will take for ever to do all the nuts and bolts. But the transition is happening in a  gradual manner.  Structural engineers have been working on 3-D models for several years and it is a piece of cake for us but it is a different story for the Architects who normally sketch it (squiggly lines) - now they need to draw every component as though they are building it.
The best way to start is to have just the building schematics developed in REVIT - basic model.  From here you can cut floor plan and elevations.  Details can still be in AutoCAD.
I hope I answered your questions.
Ashwin Ranga Swamy, P.E.
Los Angeles, California

From: Dave Adams
Sent: Thursday, June 05, 2008 7:06 AM
Subject: RE: BIM

Does it make much sense for simple, one- or two-story buildings?



Dave K. Adams, S.E., P.Eng.

Lane Engineers, Inc.

Tulare, CA





From: Jim Getaz [mailto:jgetaz(--nospam--at)]
Sent: Thursday, June 05, 2008 5:22 AM
To: seaint(--nospam--at)
Subject: Re: BIM



                        We?ve done about eight projects with Tekla.

                        Gerard is correct in that it may take a while to develop templates for drawings that show everything you want as the engineer and everything the GC (architect, subcontractors, other designers) wants to see, too.

                        Our experience is that it is a much more difficult move than from the drafting board to AutoCAD, so I?d like to know what Ashwin and Jacobs are doing right that we?re not. It may be partly that we are trying to produce erection drawings and fabrication drawings from the model and each presents its own challenges. Further, when the model has all the concrete reinforcing and connection information, it is huge. The good thing is that it is a concurrent multi-user system. Many people can be working on the same model at the same time, and when it saves, it flags conflicts in their changes. It is a very powerful program ? you probably all know how that works: it makes it so the team can do anything, but it is hard to learn how to do everything because there?s so much to learn.


            Jim Getaz

            Precast Concrete Engineer