Is it possible to export data from RFEM to RSTAB?
The export is not possible in this direction.
In RFEM, surface elements may be available in addition to member elements. RSTAB is not able to import these surface elments because this would lead to a falsification of the structural system and so to wrong results.
Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements
The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions