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"Tekla Structures is a building information modeling software able to model structures that incorporate different kinds of building materials, including steel, concrete, timber and glass. Tekla allows structural drafters and engineers to design a building structure and its components using 3D modeling, generate 2D drawings and access building information." (Wikipedia)
Tekla Structures is best known for being the leading software for steel construction in AEC.
Tekla and Solibri were the original developers of the BIM Collaboration Format (BCF)
Tekla Structures is certified for IFC 2x3 import and export and certified for IFC 4 Structural Reference Exchange export, but not yet import (2020-12-22)