Pillar One
    Strategic Definition

    Pillar Two
    BIM Definition

    Pillar Four
    Technology Skills Design

    Pillar Five
    Technology Skills Technical Design

    Pillar Nine
    Handover

    Pillar Ten
    Asset Management

Parametric Modelling

What is Parametric Modelling?

  • Graphic entities based on coordinate based geometry
  • Dumb graphics that lack intelligence

3-D Parametric BIM

  • Uses parameters (numbers or characteristics) to create intelligent models.
  • Parameters define the behaviour of a graphical entity and define the relationships between model components.

Example: the diameter of this hole is 1 m; or the centre of this hole is midway between these edges..

 

3D Parametric Modelling

 

  • 3-D Parametric BIM Design criteria or intent information is captured during the modelling process
  • Editing the model is much easier than CAD and preserves the original design intent.
  • A change made to the BIM model automatically changes the created views of the model including Plans, Elevations, Sections, and Schedules.

Project Delivery Comparison – Traditional vs. BIM

Interoperability: Transitions from design to construction to operation result in loss of data and the impact grows at each handover, culminating with the handover to the facility operator.

Project Delivery Comparison – Traditional vs. BIM

Coordination & Collaboration: Owner, Architects, Engineers, and Contractors that typically work independently in “silos”, work together from a shared project model that has the latest developed information.

Owner Visualization and Communication

Project Delivery Comparison – Traditional vs. BIM: The owner does not have to rely solely on communication with the design team, and their ability to read construction prints. On BIM projects the owner can view the building model before construction and predict how the building will satisfy their needs and desires.

Project Delivery Comparison – Traditional vs. BIM

Project Changes:  With BIM models, project information is generated very early in the design process. Given this, owners can view the models well before construction has started and make changes during the early design phases when they can easily be incorporated into the design at a relatively low cost, or at no cost.

Project Delivery Comparison – Traditional vs. BIM

Construction Planning: Projects utilizing BIM technology have access to all the information included in the BIM model. With this information, construction contractors can easily build a virtual schedule of the construction process utilizing the model. This also enables them to anticipate and fix potential conflicts and field coordination issues reducing RFI’s during construction, coordinate trade schedules, utilize additional prefabrication of assemblies, and better anticipate and make provisions for potential safety issues.

Project Delivery Comparison – Traditional vs. BIM

Prefabrication: Due to the high-quality of coordinated information on projects utilizing BIM technology, large assemblies can be prefabricated. These include assemblies of ductwork, pipe and pipe racks, HVAC equipment assemblies, wall panels, and electrical assemblies.

Summary of Benefits

  • Virtual “walk-throughs”
  • Better communication with clients
  • Improved project outcomes
  • Increased construction productivity and efficiency
  • Improved project quality
  • Improved facility lifecycle management

 

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