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Largest and the most complex of BIM project.

The following is from the post I made in Linkedin

I would pretty interested to know the capabilities of BIM. How much can BIM deliver and what kind of success, have we achieved implementing BIM projects at different spectrum. We all know what advantages BIM can get us but what benefits has already been derived has to be passed on and lets work towards that. 

Our company has done Power plants, Dam, Data center, Hospital, among some of the different flavors. 

Looking forward to hear from others.

biswaroop todi     

biswaroop todi you

BIM – BDM at Pinnacle Infotech Inc.

Comments (13)

  1. Jamie Spartz

    BIM Applications Manager at Gilbane Building Company

    BIM has such a wide spectrum, and can help us (construction managers) in over a dozen ways. Seeing some metrics finally in one area (virtual coordination) we’re looking at a typical savings of 2% of the construction cost catching errors before they get to the field. Also, 0.25-0.5% rework costs, compared to 3% for the industry median.

  2. Thor Wiggins

    BIM / CADD Manager at KSi Structural Engineers

    From my experiences, in an industrial setting BIM can be a great benefit from the standpoint of coordination between disciplines during design (structural, piping, mechanical, equipment). By creating a “virtual” project and implimenting clash detection, design corrections can be made prior to release of construction documents thus resulting in fewer RFI’s and change orders. 
    Owners can do a walk through of their facility along with the engineers and maintenance crew and make design suggestions that will impact the usefulness of the facility before construction begins. 
    On the commercial side, I have worked on a project that consisted of a concrete 16 story office tower on a 6 level parking deck. When the model was turned over to the contractor along with the construction documents, he performed 2 material takeoffs. One was done by his lead estimator using the drawings (approx 3.5 days of labor) and the other was done by extracting the information from the model (approx 1/2 day of labor). When the 2 efforts were compared, there was only a 1% material difference.
    I have also seen contractors use the structural model for sequencing concrete pours. 
    As a side note I should state that all of the BIM software on the market today is only a tool for architects and enginners. A model can only be as good as the person building it and the limitations should be understood by all users.

  3. biswaroop todi you

    BIM – BDM at Pinnacle Infotech Inc.

    Both Jamie and Thor have raised relevant issues about cost reduction. Although we have done a number of projects in BIM, we have not yet been able to analyze the exact amount of cost saving that the owner or the contractor gets. Has anybody been able to really make some kind of system which can help us to easily identify the saving. Might be a simple excel sheet with some formulas and we just fill in the blanks. I would like more BIM experts to start posting any of their projects which they consider as unique in some sense. It can be a green building or a project with LEED.

  4. Dennis Mensen

    Product Development Engineer @ Nemetschek Scia

    I do not know whether this report is usefull for you? <br/>
    <br/>
    http://www.bfrl.nist.gov/oae/publications/gcrs/04867.pdf <br/>
    <br/>
    But it’s about cost analysis of interoperability.

  5. Thor Wiggins

    BIM / CADD Manager at KSi Structural Engineers

    Here is one more example of how we can trace direct information from a model. The following is an example project. 
    If we complete a Design Development Package model and save that model to a specified folder. Then as we begin Construction Documents the owner decides to make a revision to the structure or change materials. We can do a quick model compare and see the impact of the revision immediately so we can quantify the result of a given revision and what the cost impact was by extracting a material takeoff.

     

  6. Mike Barker

    Consulting Electrical Engineer

    Another question – has anyone used a BIM model as the starting point for energy modelling of the building ? Using EnergyPlus for example ? A 3D model would save a good deal of time if it could be used in this way ?

     

  7. biswaroop todi you

    BIM – BDM at Pinnacle Infotech Inc.

    Mike I am not sure if anyone has done this for commercial purpose, but Ecotect is what I saw at AU2008. This software does wonderful energy modeling of the BIM model.      

    A properly built 3D model is of much more value that a half hearted attempt of showcasing BIM. The kind of response we get for the models we deliver to our clients are amazing. Our models are complete in all respect and can be used extensively for all purpose including FM, if we have sufficient data to be put in the model. 

    The purpose for this discussion that was started was to understand how a BIM expert classifies his model as complex. Is it because of the size or because of the information that is inserted into the model. Personally I feel any model which can be used for the lifetime of the building is of much more value and is complex and a 100 storied building model. 

    Thanx

  8. Deepak Aatresh

    Executive in Residence at Artiman Ventures

    See several case studies that cover the benefits of BIM in this recent book: BIM Handbook: A Guide to Building Information Modeling for Owners, Managers, Designers, Engineers and Contractors by Chuck Eastman, Paul Teicholz, Rafael Sacks, and Kathleen Liston

  9. Viktor Bullain

    Director of Customer Implementation at Vico Software Inc.

    Hello Biswaroop, <br/>
    The California Academy of Sciences was one of the largest and most complex 5D BIM projects built by Webcor. You can read more about it here: <br/>
    http://www.vicosoftware.com/Community/Project_Gallery/tabid/46268/Default.aspx<br/>
    The BIM model was used on site for 3D coordination, quantity take-off, cost estimation and 4D-5D construction simulation. <br/>
    It was also on the cover of ENR in August 2008. <br/>
    http://enr.construction.com/features/_Covers/2008/archives/080623.asp <br/>
    <br/>
    Viktor

  10. biswaroop todi you

    BIM – BDM at Pinnacle Infotech Inc.

    Hello Viktor Can you check and send me the ENR which you mentioned as a cover for Aug 2008. I could not see the article with your link. Send me any web links which shows the details of the project with an article on ENR.      

    I am also trying to get some articles published for some of the projects we have completed. This way we can encourage more participation on BIM. For me the Best way would be to get more quality content on web for projects completed successfully on BIM and what advantages it brought to its users. 

    BIM experts who can highlight these aspects would be contributing directly to growth and realization of BIM benefits to everybody involved.

  11. Lorne Cooper

    Chief Applications Engineer at Truland Systems

    We primarily create 3D models of our electrical systems (ductbanks, busduct, equipment, overhead conduit, cable tray ect…) for clash detection with other trades (Mechanical, Plumbing, Structurral ect…) and have really only utilized the 3D portion of BIM. As “Installers” this is of tremendous benefit to us, as it provides essentially “clash free” installation drawings for our field personnel to build by. There hasn’t been any requirements for providing 4D or 5D in our models, but I believe that it will be a requirement in the future. I forsee that in the comming 5 years most large projects, particularly Government related, will require it. We are already working on some major government projects that require 3D clash detection. This will certainly spill over into the commercial market in the comming years.

  12. Heikki Kulusjärvi

    CEO at Solibri, inc. and Owner, Solibri, Inc.

    Hello all, <br/>
    <br/>
    Here is an example of quite large BIM project where IFC as the neutral file format has been used in all disciplines. <br/>
    <br/>
    http://iai-forum.teknologisk.dk/_root/media/28156_Reykjavik_ENG.wmv

  13. Steven Register

    Design and Engineering Applications Administrator / Landscape Architect / Architectural Designer

    BIM is capable of delivering very large and complex projects. Our firm is wrapping up the CD phases of 2 government campus projects that are very complex. 1 is a fast-track project of about 1 million square feet across 5 buildings fully fitted out where the program kept changing even as the foundations were poured. The Architecture, Interior Design, Structural Engineering, and Mechanical Engineering were done in Revit. BIM really helped us keep everything coordinated on the extremely fast schedule. The other project is even more complex. Imagine a skyscraper on its side making for very large floor plates with fully fitted out Interiors (no repetative floors). This also was a campus project of about 4.5 million square feet with the main building at 2.4 million square feet. The project coordinated about 21 or so different Revit models linked together across 2 firms and 4 offices. 2 of the main Revit files hover around 300MB and most of the others around 200MB, or smaller for the ancillary buildings. The project looks fantastic and we could not have designed and delivered such a nice campus without BIM.      

    Large projects have their own complexities, but all of our other buildings, even the ones that aren’t so large, are getting more complex in their design because we are putting more information in them that couldn’t be done very easily before BIM. We have started using Ecotect and IES to make better performing buildings, and using databases with our BIMs to help them have better functioning programs that work with the design. It is the “I” in BIM that is making things interesting.

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