1. Can Revit models imported into Luban be quantified? How accurate is the process?
Exporting models from Revit to Luban solely for matching 3D visuals is not very meaningful. Based on testing, users are generally satisfied with the 3D representation. The exported components—such as walls, beams, slabs, and columns—retain their properties. For example, brick walls, concrete columns, and other imported elements remain distinct and are properly named.
When it comes to achieving accurate engineering quantities, I believe it is possible. However, the accuracy heavily depends on how well the properties of walls, beams, slabs, and columns are defined during the initial Revit modeling, as well as any subsequent modifications to the geometric components within Luban. Ultimately, the precision relies on the skill level of the modeler.
2. Which components become geometric components upon import into Luban, and how can this be addressed?
Elements such as stairs, handrails, ramps, gutters, fascia, furniture, ceilings, plants, site objects, volumes, and interior models from Revit typically convert into geometric components in Luban. A common trait among these is that they tend to be decorative rather than structural.
In contrast, solid structural components like walls, beams, slabs, and columns generally convert accurately and maintain their properties. To address these issues, the solution is twofold: ongoing software development aims to improve this conversion process, while modeling personnel may need to manually redraw or adjust these geometric components later in the workflow.
Common issues encountered during import and how to resolve them
One challenge is that Revit lacks the concept of a foundation layer, and it cannot distinguish between frame beams and secondary beams—resulting in both being imported as frame beams in Luban.
Similarly, hidden columns and frame columns cannot be differentiated upon import. Hidden columns are often part of shear walls, but in some cases, according to calculation rules, they are treated separately.
Additionally, external masonry walls defined in Revit are imported into Luban as internal walls. Although the names correspond, this conversion is inaccurate because the materials for internal and external walls differ, requiring manual adjustment after import.
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