The cross-section classification in RFEM 6 for the design of steel members is carried out according to the provisions in Eurocode 3. The classification is done separately for all cross-section parts by comparing the provided width-to-thickness ratios to the limit values for each class as given by the standard. The least favorable class obtained for the individual parts is assigned to the entire cross-section.
KB 001694 | Section Classification in RFEM 6 According to EN 1993-1-1
The combination wizard provides you with the option to consider more than one initial state. RFEM and RSTAB allow you to specify different initial states (prestress, form-finding, strain, and so on) for the target combinations in the combinatorics.
You can thus, for example, generate load states on the basis of a form-finding analysis with varying imperfections.
The "2D | Story" calculation diagram type is used to create result diagrams via the building axis. This allows you to easily analyze the behavior of the entire building under static and dynamic effects.
You can use this diagram type, for example, to visualize the seismic force over the building height.
The "Spring" member type is used to simulate linear and nonlinear spring properties via a linear object. This input function helps you to model the stiffness specifications in the force/displacement unit.
The Steel Joints add-on provides you with the option to connect circular hollow sections using welds.
It is possible to connect the circular sections to each other or to planar structural components. The fillets of standard and thin-walled sections can also be connected with a weld.