TERRESTRIAL LASER SCAN SURVEY AND AS-BUILT MODELLING OF RESIDENTIAL APARTMENT BUILDING FOR ENGINEERING DESIGN AND PLANNING.
Diospatial was engaged to carry out a terrestrial laser scanner-based survey of a residential apartment building. The scope included high resolution survey of all accessible internals, externals across the 4 storeys, including detailed survey of 29 apartments, roof cavity and basement level.
The resulting data was to be used in engineering design and planning of future works and ongoing maintenance.
Diospatial’s scan-to-Revit survey solution utilised terrestrial laser scanning to capture internals and externals of the residential apartment.
Over 430 individual laser scans were registered to create a single point cloud of the entire site. The 43 external scans were captured with HDR imagery to colourise the final external point cloud and provide coloured imagery in the panorama tour software. The point cloud achieved an accuracy of approximately 5mm.
Autodesk Revit was used to develop an LOD200 model based on feature extraction from the point cloud data. From the 3D Revit model, plans, elevations and cross-sections could be readily generated as required.
The high detail digital As-Built model can be used for engineering assessment, remediation scoping and as a record for future use.
Field works were completed over 2 days on-site with a 2 person crew. Rapid acquisition meant minimal disruption to residential stakeholders. The resulting high detail digital As-Built can be replied upon for engineering assessment, remediation scoping and to serve as a digital As-Built record for the strata corporate to utilise in to the future.