This data-rich, computable Revit Systems model is used to drive the design process with a host of tools to aid in the layout of mechanical ductwork and piping as well as plumbing systems. All model views and drawing sheets update automatically whenever a change is made anywhere for accurate and coordinated designs and documents at all times. Engineers modify their design by dragging design elements to move or change them on the screen. Intuitive layout tools make system layout fast and easy. MEP engineers work directly in the model, and the drawings themselves are part of the BIM. In contrast, the Revit Systems BIM, a purpose-built parametric building modeler, is an integrated digital environment for design and engineering, analysis and documentation. Some CAD systems designed specifically for MEP system design allow designers to model the system geometry in 3D for the purposes of coordination and extracting drawings, but because the drawings are extracted from the model, change management between the drawings and the model as the design evolves involves a manual process. Using a conventional CAD system for design, MEP engineers and designers visualize the 3D design in their brain and transfer it to a 2D drafted representation. Next month, I'll do the same for electrical design.īIM relies on a computable building model - that is, a model in software operated on by a computer as a building a model that captures the functional relationships between building elements and systems. This month, I drill down into mechanical design, examining how that building discipline can take advantage of BIM. Last month, I began a three-part series of articles about how the newly released Revit Systems BIM (building information modeling) software for MEP (mechanical, electrical and plumbing) engineering improves the MEP design and documentation process. 1-2-3 REVIT: BIM for MEP Engineering, Part 2 8 May, 2006 By: AIA, Rick Rundell The impact of BIM on building mechanical design.
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