BIM grid revision — geometry change set

A coordination model shifts two structural grid lines by 1.5 m after the STAAD model has already been analyzed. What is the safe interoperability workflow?

CAD wireframe import — drafting is not analysis topology

A 3D DXF/DWG-derived canopy imports as a dense network and the analytical model is unstable.

Section-mapping conflict

A BIM source calls a member “300×600 Concrete Beam,” while the analytical model has a 300×550 mm section because the structural engineer intentionally revised the depth during design.

STAAD.Pro → STAAD Foundation Advanced data handoff

A verified portal-frame analysis will feed isolated-footing design.