Top structural engineering firms use conceptual designing in Revit steel detailing, Rhino, Dynamo, etc. for modifying geometric shapes in the BIM model. Rhino Architecture constitutes to be a free parametric modeling tool, supporting interoperability with the structural model in IFC format. Automatic calculation of the movement of earth or automatic quantification of the earthworks is an added BIM usage to top structural engineering firms. Starting from the topographic to the shape of the diverse levels, structural design engineers are able to automatically determine the movement of the earth. At this juncture, structural engineering consultants and BIM modelers import process from CAD to automated BIM. The technique of CAD-BIM import works only if the topographic points in CAD have a 3D representation of the ground. Structural BIM modeling facilitates automated calculation between existing ground and adapted ground.