In exists a simple GiD-SAP2000 problemtype.
There is one special old 'problemtype' to connect GiD and SAP90. It is not included in the GiD distribution. It can be obtained as a technical publication (one book).
Contact CIMNE firstname.lastname@example.org for more information.
The simple DXFSAP2000 template can be used to transfer the mesh to SAP2000.