Solutions for Cold-Formed Sections
Recommended Products for Cold-Formed Sections
Lateral-Torsional Buckling with Warping Torsion
The Torsional Warping (7 DOF) add-on allows you to consider cross-section warping as an additional degree of freedom.
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![KB 001801 | Accessing FSM Results](/en/webimage/039828/3500358/Figure_1.png?mw=512&hash=d5b2460f441369fa093f6bb79c5c8666350e521e)
![KB 001809 | AISI Cold-Formed Steel Design in RFEM 6](/en/webimage/038633/3506428/Image_01.png?mw=512&hash=04f84a8c909770792f6dd13d75bebdd3039dbe2f)
![KB 001885 | Assessment of Story Drift under Seismic Loads According to ASCE 7-22 and the Building Model](/en/webimage/051645/3995306/im1.png?mw=512&hash=b8237709c4f30213fac51d86d32a42bddde72f03)
![KB 001883 | Plate Girder Design According to AISC 360-22 in RFEM 6](/en/webimage/051561/3980997/im1.png?mw=512&hash=b8237709c4f30213fac51d86d32a42bddde72f03)
![AISI S100 / CSA S136 Cold-Formed Steel Design in RFEM 6](/en/webimage/040277/3509688/Cold_formed_AISI_EN.png?mw=512&hash=64fe70077d24767102745523ca11a1880ab1ff6e)
The design of cold-formed steel members according to the AISI S100-16 / CSA S136-16 is available in RFEM 6. Design can be accessed by selecting “AISC 360” or “CSA S16” as the standard in the Steel Design Add-on. “AISI S100” or “CSA S136” is then automatically selected for the cold-formed design.
RFEM applies the Direct Strength Method (DSM) to calculate the elastic buckling load of the member. The Direct Strength Method offers two types of solutions, numerical (Finite Strip Method) and analytical (Specification). The FSM signature curve and buckling shapes can be viewed under Sections.
![Feature 002854 | Transfer of support reactions to free loads](/en/webimage/051684/3998606/1.png?mw=512&hash=9d7f6c198b6d4ae6ee8f2fa8bca75f85579e14c9)
In the "Import Support Reaction" load wizard, the "Free Loads" object connection type is available in addition to the "Manual" ones. This option saves you the task of manually assigning the support reactions to specific nodes and lines. The support forces of the connected model are applied as free loads in this option.
![Feature 002852 | Spline surface with minimum curvature](/en/webimage/051665/3996349/2.png?mw=512&hash=495637ed9f78ff76e0ac09e73585e9001cb15ebb)
You can use the "spline with minimum curvature" surface geometry type to generate curved surfaces on the basis of the control nodes in the middle of the surface.
This can be used to model terrain surfaces, for example.
![Feature 002853 | Design check details about mesh node selection in graphics](/en/webimage/051681/3998147/1.png?mw=512&hash=9d7f6c198b6d4ae6ee8f2fa8bca75f85579e14c9)
In the result diagrams in the surface point, you can simply select the mesh nodes in the graphic to display the detailed results at this point.