Detection of collisions and clashes within BIM models

Services » Detection of collisions and clashes within BIM models


Clash Detection" has become an industry accepted term I would suggest that the process of resolving spatial interferences through a series of "Clash Detection" meetings. It should include not only the final constructed locations of components but also give thought to construction sequencing, material and equipment lead times, compliance with Architectural Intent etc.

For any architectural or construction project it is very important to find and resolve any physical clashes between disciplines. These clashes are detectable and flagged by employing coordination techniques at an initial stage and before commence of work on-site. In addition to physical clashes, collision detection can include rule sets for ease of access and is also used to locate penetration and transit details where services run through walls etc.

Using BIM, clashes and conflicts can be resolved in the documents stage instead of on-site during construction. When you design and build virtually, then you have a higher chance of eliminating planning and design errors or inefficiencies that lead to construction problems, delay the project, cause the project to be over budget, or impact long-term facility operations.

Our models are clash checked prior to delivery as a matter of course. We use Coordination Software Clash Detective or the Solibri Model Checker, depending on the brief and the type of 'design review software' being used by the project (if any).

We run clash detection in either Coordination Software or Solibri and when collisions have been detected provide a report to the client showing where the problems are occurring. When the solution is obvious we provide suggestions that the client may decide to implement. Then, after consultation and upon instruction from the client we make the changes necessary and re-run the interference check. Finally we provide notification of the change to all interested parties.