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.
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When you upgrade an RFEM 5 add-on module such as RF-STEEL AISC, you will now have access to all national and international standards in RFEM 6 including AISC 360, CSA S16, EC3, and many more. The separate standards under each design material are no longer sold as separate modules. If you currently have multiple modules for the separate standards (e.g. RF-STEEL AISC and RF-STEEL CSA), there will only be one upgrade fee for a material family. This will be a long-term cost savings.
There are separate upgrade fees for both RFEM 5 and the add-on modules that you currently own. The RFEM 5 upgrade fee is a set price while the add-on module upgrades vary.
There will only be one upgrade fee for multiple standards within the same material family. For example, if you currently own a seat of RF-STEEL AISC and RF-STEEL CSA, there is only one upgrade fee for both add-on modules, which you will now have access to steel design in RFEM 6 according to the AISC, CSA, EC3, and all other international standards. These add-ons now include all national and international standards in one product which will be much more cost effective.
For an itemized quote specific to your current RFEM 5 products, please contact us as we are happy to put this together for you.
In RFEM, built-up sections called Castellated Beams are available in the cross-section library. They allow you to place openings in the web of sections such as W-shapes for example. The layout of the openings is parametric where the diameter and spacing can be adjusted. These cross-sections can further be designed in the RF-STEEL AISC add-on module.
You can then set separate cross-sections for the start and end of the member allowing you to create a tapered section.
Curved members cannot be designed for stability within the RF-STEEL AISC module. These stability checks include flexural buckling (strong axis and weak axis) and flexural torsional buckling according to Chapter E. Lateral torsional buckling is also not checked according to Chapter F for these types of members.
A possible workaround to carry out stability design for a curved member is to convert the line element to a polyline and design as a straight member instead. Alternatively, a series of straight line segments can be modeled and convert to a set-of-members which can also be designed in the RF-STEEL AISC module including stability checks.
StandardID and AnnexID can be displayed easily at any time using the following macro:
cominterfaces-en\SDK\Examples\Modules\Excel\RF-STEEL_EC3.xls
You can find this macro in the archive of the product website (see Links).
Here is an overview of the current attachments:
StandardID AnnexID Name
DIN 0 Germany
ÖNORM 1 Austria
CSN 2 Czech Republic
STN 3 Slovakia
PN 4 Poland
SIST 5 Slovenia
DK 6 Denmark
UNI 7 Italy
NEN 8 Netherlands
SFS 9 Finland
SS 10 Sweden
NF 11 France
BS 12 United Kingdom
CEN 13 European Union
BDS 14 Bulgaria
CYS 15 Cyprus
LST 16 Lithuania
SR 17 Romania
SS 18 Singapore
NBN 19 Belgium
NP 20 Portugal
UNE 21 Spain
MAL 22 Malaysia
NS 23 Norway
LU 24 Luxembourg
ELOT 25 Greece
Based only on the surface results or surface stresses, it is not possible to make a statement about the buckling behavior of the box girder. The stability behavior can be analyzed using the RF‑STABILITY add-on module. It determines the buckling shapes and critical load factors that allow a statement about the buckling behavior.
However, the buckling design has not yet been provided. For this purpose, the buckling shape would have to be transferred to the model, so it can be calculated according to the second-order analysis on the imperfect structural system. A stress analysis with the RF‑STEEL add-on module could then be used to carry out a buckling design.
The RF‑IMP add-on module facilitates the transfer of the buckling shape. Using this module, you can generate the equivalent geometry based on the stability mode so that you can perform a buckling design with a second-order stress analysis on the predeformed structure using RF‑STEEL.
The procedure in RFEM could look like this:
As an alternative, you can use the PLATE-BUCKLING module to analyze the buckling behavior.
There are some very interesting technical articles on this topic on our website.
Using the COM interface, you can access most operating elements as well as the results of the following programs or add-on modules: