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BIM, an Owner’s Perspective Poway Unified School District Executive Director of Facilities Doug Mann. ACCM Conference June 19 th – 20 th Newport Beach, CA. Design & Design Development 2D vs 3D.
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BIM, an Owner’s PerspectivePoway Unified School District Executive Director of Facilities Doug Mann ACCM Conference June 19th – 20th Newport Beach, CA
Design & Design Development2D vs 3D • Most people, even some within the construction industry, don’t understand completely design intent and how to build based upon 2D drawings. This lack of understanding is one critical issue that impacts projects with far too much regularity, severity and cost. • The use of 2D documents in, a 3D world, requires multiple translations from the original designer’s conceptual visualization for all who need to use, add or refine the documents. Each translation leaves more and more room for oversight and/or error. • The 3D model portion of BIM creates a huge potential for visualizing and communicating information that previously only persons experienced in 2D construction documents could understand. • The models also allow for earlier and more accurate feedback from anyone involved with the project, especially those who do not normally have to read plans.
Design & Design DevelopmentShock and Awe and the case of the Disappearing Walls • If a picture is worth a thousand words, then how many more words are there in the virtual construction of a school? The school Board, principals, teachers, students and operations/maintenance staff are in awe to be able to walk through the campus, see the classrooms and look at spaces and systems before they are ever built. This 3D visualization and communication of what a school will feel like, look like and even perform like, is one of the most valuable aspects of BIM. • Sometime these 3D models are taken too literally, In one non-BIM animated 3D presentation, the designer made the simulated adjoining classroom walls lower out of sight into the floor. At the facility opening tour, one Board member expressed her excitement about seeing this feature. She was quite disappointed to learn that the actual operation of the wall was a far more ordinary folding wall.
Construction • Cost: There is a cost to creating BIM – software, training, practice. The cost is out-weighed by potential savings. • Changes and Change Orders: BIM reduces conflicts and surprises. The owner expects more constructability concerns to be discovered prior to construction, thereby reducing change orders that result from poorly coordinated drawings. Additionally it will be easier to project cash-flow needs. • Customer requests: By walking future occupants through the BIM facility, customer requested changes can be identified before walls are constructed or casework in place. Too frequently, customers request changes when they are close to moving in, the most costly time to make changes.
EducationFor a person to make the effort to learn a subject well, it is either necessary to become passionate about that subject, or else make it an absolute necessity to learn it. • College Ready: The knowledge, skills and attitudes needed to prepare students for college are the same as those needed for success in any post-secondary career. • Technological Literacy: Being able to swing a hammer is no longer enough of a skill to enter the construction industry. The AEC/CM industries need more and more technologically qualified people. The pace and intensity to prepare future professionals for these positions needs to be addressed. • Change - Learn to Learn: Learning is cyclic and iterative (knowledge, application – practice, evaluation & new knowledge from the evaluation starting the cycle over again). The use of BIM on a project is also cyclic and iterative; the creation of BIM represents learning about the project.
Maintenance & OperationFacilities Realities • Good As-builts (or Garbage in Garbage out): Upkeep why, when, where & who. Facilities models = same challenges compounded by lack of knowledgeable staff to accomplish tasks, and facility management tools tied directly to the BIM models. • History shows us the progression of operation and maintenance information from paper to microfiche to electronic files with each of the transitions taking time and acceptance, being. To this day most schools maintain paper information. It is costly to convert to other formats. • BIM for M&O will need to be simple, inexpensive, have the information, systems, schedules, particulars and complexities available within the model. It also must be accessible quickly and easily, be portable, and transferable. The facility management tools of the future will need all of these characteristics to be widely accepted and used by the existing workforce and school districts.