09 10 05 Presentation Spekkink Changing Roles 09
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09 10 05 Presentation Spekkink Changing Roles 09

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The impact of BIM on the architectural practice

The impact of BIM on the architectural practice

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  • Nu kan ik me voorstellen dat je als architect zegt: daar zie ik niet overheen. Er zit een heleboel informatie in zo’n model waar ik helemaal geen weet van heb. Hoe kan ik dat nou sturen. Dit is een soort ideaalplaatje met al die informatie in één model. Ik denk dat het in de praktijk iets anders zal werken.

09 10 05 Presentation Spekkink Changing Roles 09 09 10 05 Presentation Spekkink Changing Roles 09 Presentation Transcript

  • The Impact of BIM on the Architectural Practice and Partnering in the Building Process Dik Spekkink Spekkink C&R consultancy for building process innovation The Netherlands
  • Building Information Model Functional specifications
    • Design
    • Drawings
    • - Calculations
    Feasibility Study Legislation Visualisation
    • Structural engineering
    • Drawings
    • - Calculation
    • Service engineering
    • Drawings
    • - Calculations
    • Simulations
    • Indoor climate
    • Daylight / lightning
    • Acoustics
    • Fire / smoke circulation
    • Energy consumption
    Technical specifications Construction management & planning Facility Management Administration & maintenance First experiences of two Dutch architects The Hague 60 employees ErnstJan Cornelis | Menno Roefs Utrecht 5 employees Aart van der Vlist
  • The projects Meander Medical Centre 100.0000 m 2 4.000 spaces
  • The projects Housing for the elderly ‘De Veste’ Housing & health care facilities
  • Why BIM?
    • Meander
      • Client’s demand
      • Building further on “3D drawn brief”
    • De Veste
      • Architect’s initiative
      • “ Help to make the end user succesfull”
      • Tight budgets: do the right things first time right
      • Make sure that the design is realized as intended
    BIM is powerful tool
  • The process - Meander
    • “ All” participants work in one model
    • Client payed extra fee for training employees
    • After 4 years: still one file / database
    • Tendering phase: model handed over to contractor
  • The process – De Veste
    • 3D modeling outsourced to specialized service provider
    • Seperate aspect models – clash control
    • After tackling all clashes: merging into one 3D model
    • All communication through project web application
    • Workflow management system
  • Some experiences - Meander
    • 3D modeling requires integral design
      • Close co-operation and interaction from the very start
    • Client gets full insight
      • Becomes full team member
    • More crucial decisions in earlier stages
      • Architectural, structural and service installations designs must keep in pace
    • No clear cuts between design stages
      • Standards for ‘output per stage’ don’t apply
      • Model is ‘frozen’ at logical moments
    • Quick design evaluation
    • Assessments and approvals much quicker
    • Real time testing of the design against the brief
    • ‘ Clash control’ detects discrepancies in early stages
    • Dynamic bills of quantities / cost estimations
  • Some experiences – De Veste
    • Service provider has much influence
      • De facto design director
    • Architect attracts more work
      • No seperate drafting for stuctural and service installations designs
    • Much more work in earlier stages
      • Traditional fee structure does not apply
    • Uncertainty about liabilities
      • Who is the owner of the data
      • Structural engineer is suspicious of any mistakes the 3D modeler might make
    • A good 3D model of the building structure offers contractors quick insight in the complexity of the work
  • 3D model provides overview and insight Identification in floor plan (K04) Detailed information in bill of quantities (generated from the 3D model)
  • All drawings generated from the model are consistant!
  • Partnering with contractors - Meander
    • Design partners: 3D model from viewpoint of functionality and spacial development
    • Contractor: 3D model from the viewpoint of execution logistics (‘virtual building’)
    • Lot of effort put in adjusting the model
    • Building expertise should be involved in much earlier stage
    • “ Further implementation will lead to supply chain integration in a very natural way”
    Opinion of both architect and contractor
  • Partnering with contractors - Meander
    • Client demands 3D model ‘as built’ at delivery
      • Responsibility of the contrator
    • Results of detailed engineering by suppliers must be integrated in the project BIM
    • It turns out to be very difficult for the contractor to make a bid on the basis of the 3D model / BIM alone
      • No additional specification documents
  • Partnering with contractors – De Veste
    • 3D modeler (service provider) used to work for a contractor
    • 3D model / BIM is set up from a execution process viewpoint
      • Crucial for the architect as well
    • Contractor is obliged to work with and contribute to the 3D model / BIM
      • Allowed to adjust the model to own execution methods
    • Ambition is to realize 10% cost reduction
      • Consistent design, less improvisations on site
  • Drawbacks
    • Lot of discussion: what information has to be exchanged in different design stages
    • No clear picture of what the information content of the model should be in the various stages of the bulding process
    • Internet cannot handle huge amount of data
    • Lack of standards for the exchange of 3D object oriented data
    • Lack of operational (open source) object libraries
  • Drawbacks
    • Cost engineers are sceptical
      • Reliability of data strongly depends on the way components are modeled, classified and coded
      • Not all required information is modeled “all required information can be incorporated …”
    • No open source BIM technology
    • available yet
      • IFC, IFD Library for BuildingSMART
      • Practice today is application dependent
  • Impact on architectural practice
    • 3D modeling/BIM affects the very core of the architect’s business
    • Opportunity to regain long lost positions
      • In an integrated design process
    • Successful implementation requires strategic planning policy making
      • Not a matter that can be delegated to the ICT department or the firm’s computer wizzkid
    • Precondition: positive attitude to sharing information in a transparent and open design process
    • Borderlines between functions will blur
    Completely new way of thinking and working
  • Impact on architectural practice
    • Suspicion and scepticism at the start
    • Once architects experience the advantages…
      • (better co-operation, consistent designs, less faults, less failure costs, better quality, more addes value for the client)
    • … there is no way back!
    • It’s not a threat, it’s an opportunity…
    • … the biggest threat is that architects don’t grab the opportunity