Clash Detection is a critical process in Building Information Modeling (BIM) that identifies interferences or conflicts between different building components and systems within the 3D virtual model prior to actual construction.
As BIM models integrate design data from multiple disciplines like architecture, structure, MEP systems, etc., there is a risk of overlaps or interferences between these elements which need to be detected and resolved. Clash detection automates this coordination process.
Some common types of clashes that can be identified include:
- Spatial Clashes: When two solid 3D components like a wall and ductwork, or a beam and pipe, physically intersect or overlap in the model space.
- Clearance Clashes: Lack of adequate clearance space around components for installation, operation or maintenance activities, e.g. insufficient room around equipment for servicing.
- Coordination Clashes: Conflicting design intents between different disciplines, like a structural column positioned through a planned room layout.
By systematically running clash detection routines on the integrated BIM model, project teams can virtually identify all such existing and potential clashes early in the design stage before they manifest into actual site issues.
This proactive digital coordination allows conflicts to be visualized in 3D, analyzed, and resolved through collaborative decision making among stakeholders. It prevents rework, delays, and cost overruns from occurring during construction due to unforeseen interferences.
Effective clash detection optimizes the design, enhances constructibility, and streamlines coordination on complex projects by ensuring all systems fit seamlessly together per design intent before construction starts.
