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Introduction to BIM

“Building Information Modeling (BIM) is the process of generating and managing building data during its life cycle. Typically it uses three-dimensional, real-time, dynamic building modeling software to increase productivity in building design and construction. The process produces the Building Information Model (also abbreviated BIM), which encompasses building geometry, spatial relationships, geographic information, and quantities and properties of building components.”

Many preconstruction estimating departments have identified Building Information Modeling (BIM) as an area of competency. As with any emerging technology, the initial period is clouded by many definitions (often contradicting), confusion, and false expectations. Many pioneers have been using BIM in various ways for years and the evidence shows that “the view is worth the climb.” This paper offers guidance to AEC companies interested in learning more about BIM and related preconstruction cost estimating issues.

In short, BIM is the way a project is handled;

• Space and Room (Client)
• Terrain Modeling (Architects)
• Design Phase (Architects)
• Structural Design (Structural Engineers)
• MEP Engineering (Mechanical, Electrical & Plumbing)
• Energy Calculations (Engineers)
• Model Checking (Architects and Engineers)
• Specification & Costing (Architects and Engineers)
• Construction Planning & Simulation (Builders and Project Management Firms)
• Model Viewing (Builders and Project Management Firms)
• Facility Management (Maintenance and Building Lifecycle Management)