Trimble SketchUp is a modeling software used in, for example, architecture, construction, engineering and landscape architecture. 3D Warehouse contains lots of SketchUp models that you can import as reference models to Tekla Structures.
You can insert Sketchup files as reference models to Tekla Structures. Tekla Structures supports Sketchup version 2019 and earlier in import. For more information about inserting reference models, see Insert a reference model.
You can export Tekla Structures models as .skp files to be used in SketchUp.
Export a model to SketchUp