Scanning for BIM
Comprehensive and accurate 3D high definition (HD) scanning is at the core of all our services. However, the implementation of BIM is further driving the adoption of this technology as it provides a crucial function to the BIM project cycle and optimises the integrated workflows.
MSA’s experienced site teams use their knowledge of the project requirements to carefully plan and execute their site scanning operations. By prioritising tasks they are able to obtain optimal coverage and the level of detail (LOD) needed for the project as well as to allow for future data extraction where possible. Careful planning of the site work is specifically designed to minimise occlusions of features or significant shadowing within the scan data so as to provide a continuous and unified dataset for the area whilst minimising time lost capturing data that is not needed.
The scans are then registered and manually cleaned before being unified to an appropriate resolution and converted to various formats that can be read into different software packages and shared with other project consultants.
Point cloud data derived from 3D scanning is extremely powerful on its own for checking, validation, clash detection and even visualisation. However, most often this data is used by MSA for the extraction of object base detailed BIM models. The accurate point cloud data provides invaluable understanding of complex structures, clearances, critical interfaces with design, tolerances and informs clash detection all of which are of fundamental importance to the success of a BIM project. Furthermore when using point cloud throughout the project lifecycle it guarantees construction conformance to the design constrains.