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EDUCATION > Did You Know? > General > Building Information Modeling (BIM)

Building Information Modeling (BIM)

building-information-modeling-bim.jpgWhat is BIM? Building Information Modeling (BIM) is a digital representation of physical and functional characteristics of a facility. BIM is a shared knowledge resource for information about a facility forming a reliable basis for decisions during its life-cycle; defined as existing from earliest conception to demolition.*
  • Traditional building design was largely reliant upon two-dimensional technical drawings (plans, elevations, sections, etc.).
  • Building information modeling extends this beyond 3D to include:
    • Width
    • Height
    • Depth
    • Time
    • Cost
  • BIM covers more than just geometry. It also covers spatial relationships, light analysis, geographic information, and quantities and properties of building components.
The Difference                                              
  • Traditional sketching and computer aided design in architecture have always focused on the physical characteristics of the structure to be built.
  • BIM shows the physical characteristics of a structure but also details the properties and attributes of the components used to build the structure as they relate to the operations and can further be utilized to monitor expected performance as the structure is being built.
  • Based on the combined attributes of building components we can (among other things):
    • Define energy and other utility requirements
    • Determine lighting needs
    • Project future maintenance requirements
    • Detect potential conflicts between trades while under construction
Variation in Models
  • LOD - Level of model detail, which relates to the graphical content of models.
  • LOI - Level of model information, which relates to the non-graphical , information based content of models.
*Source:Nationalbimstandard.org