How We Helped
Having commissioned various dimensional and condition surveys in recent years, data was readily available to enable our client to begin their BIM journey.
Using CAD drawings from a recent measured building survey, augmented with intelligent imagery from a spherical photography survey, the Benchmarq team set about constructing a 3D digital model using Autodesk Revit.
In common with most other BIM software, Revit is primarily a tool for creating new designs rather than recording ‘as-built’ data.
With Heritage properties, this becomes more evident with walls, floors and ceilings that are usually neither level nor straight. Features such as handcrafted stone window frames present even greater challenges due to their complex shapes and creation by different craftsmen over the history of the building.
Inevitably, compromises are required to develop a coherent 3D model of such a building. This became apparent when looking in detail at the CAD drawings from which the 3D model was constructed, when inconsistencies and anomalies in the 2D linework needed to be rationalised.