The structural analysis software RFEM 6 is the basis of a modular software system. The main program RFEM 6 is used to define structures, materials, and loads of planar and spatial structural systems consisting of plates, walls, shells, and members. The program also allows you to create combined structures as well as to model solid and contact elements.
RSTAB 9 is a powerful analysis and design software for 3D beam, frame, or truss structure calculations, reflecting the current state of the art and helping structural engineers meet requirements in modern civil engineering.
Do you often spend too long calculating cross-sections? Dlubal Software and the RSECTION stand-alone program facilitate your work by determining section properties of various cross-sections and performing a subsequent stress analysis.
Do you always know where the wind is blowing from? From the direction of innovation, of course! With RWIND 2, you have a program at your side that uses a digital wind tunnel for the numerical simulation of wind flows. The program simulates these flows around any building geometry and determines the wind loads on the surfaces.
Are you looking for an overview of snow load zones, wind zones, and seismic zones? Then you are in the right place. Use the Geo-Zone Tool to determine quickly and efficiently snow loads, wind speeds, and seismic data according to ASCE 7‑16 and other international standards.
Would you like to try out the capabilities of the Dlubal Software programs? You have the opportunity to do so! The free 90-day full version allows you to thoroughly test all our programs.
NCI to DIN EN 1993‑6, Cl. 2.3.1 allows for reductions of dynamic factors (vibration coefficients) for values ≥ 1.1. Therefore, you can use these reduced support loads for the design of support and hanger structures.
In CRANEWAY, if you select National Annex "DIN" and dynamic coefficients ≧ 1.1, the reduction is considered automatically.
The standard EN 1991‑3, Table 2.2., specifies load groups 1 to 10. These are equal to the denotation of the classes in our software.
The integration in Categories A to E is a specific classification by Dlubal Software.
The article in our Knowledge Base (see Links below) points out that the combinations (Classes A to D) should be used for the preliminary design of crane girders. For the supporting structure (brackets, supports, trusses), these combinatorics should not be used.
In your model, the support loads from the crane girder design are only considered in Category E.
Generally, the module assumes that there is a rigid coupling between the layers.
More information about calculation with the RF‑LAMINATE add-on module can be found in the respective manual. This also explains the special features of various material models (isotropic, orthotropic, and hybrid).
In the program, you can enter a final temperature of steel. This function was implemented, for example, to use the results of real fire events or fire check locations and to perform designs with a more accurate temperature, since the temperature usually rises in several phases and is thus more favorable for the design.
The design at the temperature level shows that the highest temperature occurring in the structural component is lower than the critical steel temperature. The critical steel temperature is the temperature at which the component resistance is just as great as the loading due to mechanical loads.
This is not the ULS design, as no stability analyses are usually performed. Therefore, it is possible to use this method for the preliminary design of a structural component by calculating the critical temperature using the utilization ratio for the moment loading, for example. We do not offer this method directly. However, it is possible to determine the critical temperature of the component iteratively by specifying the temperature. However, the stability analysis should be taken into account in this case. The determined critical temperature can, however, be smaller than that of the formulas in the Eurocode, because, as already mentioned, the stability analysis is usually not taken into account.
When calculating according to the equivalent load method, an equivalent load is determined from the individual mode shapes. After successful determination, you can export these equivalent loads in RFEM. RFEM automatically creates load cases this way.
It is now necessary to superimpose the exported load cases in a result combination. For additional seismic loads, a quadratic superposition must always be applied. Two types of superposition are possible, the common SRSS rule and the CQC rule. All load cases from the earthquake are always assumed to be acting permanently and superimposed according to the respective regulations. The calculation rules are governed by the common standards.