- Consideration of 7 local deformation directions (ux, uy, uz, φx, φy, φz, ω) or 8 internal forces (N, Vu, Vv, Mt,pri, Mt,sec, Mu, Mv, Mω) when calculating member elements
- Usable in combination with a structural analysis according to linear static, second-order, and large deformation analysis (imperfections can also be taken into account)
- In combination with the Stability Analysis add-on, allows you to determine critical load factors and mode shapes of stability problems such as torsional buckling and lateral-torsional buckling
- Consideration of end plates and transverse stiffeners as warping springs when calculating I-sections with automatic determination and graphical display of the warping spring stiffness
- Graphical display of the cross-section warping of members in the deformation
- Full integration with RFEM and RSTAB
Torsional Warping (7 DOF) | Features
![Dlubal Center | Blocks](/en/webimage/028609/3237291/1_en.png?mw=512&hash=fd421b3f2c85d04e163841c3e5995f948391dd20)
![Creating Cross-Sections](/en/webimage/008719/1979290/01-en.png?mw=512&hash=65e98cfe859ce35a3e3e9da47a0ef9335401520e)
![Defining Nodes 1 to 4](/en/webimage/008816/769085/01-en.png?mw=512&hash=65e98cfe859ce35a3e3e9da47a0ef9335401520e)
![2.1 Effective Lengths - Truss Members](/en/webimage/007036/1590022/000280-en-png-png.png?mw=512&hash=69021112f394ffcd1320fcf7598e68a868b98df3)
After generating the effective lengths, the results are displayed in clearly arranged tables. You can modify the effective lengths manually there.
The Export function transfers the effective lengths to the RF-/TOWER Design add-on module for further calculation. The complete module data are part of the RFEM/RSTAB printout report. The report contents and the extent of the results can be selected specifically for the individual designs.
![Tower Model in RFEM](/en/webimage/007029/1589859/000269-en-png.png?mw=512&hash=bc1927fc2e9e38687a17f0857b06a720c45945bb)
Finally, it is possible to export the generated model to RFEM/RSTAB with a single mouse click.
The complete module data are part of the RFEM/RSTAB printout report. The report contents and the extent of the results can be selected specifically for the individual designs.
![2.2 Design by Cross-Section](/en/webimage/007039/1590107/000284-en-png.png?mw=512&hash=d15dc15c18c35113e29c373302e82142ae24c1df)
The results are displayed in clearly arranged module windows. In addition to the design data, the results include all design-relevant parameters. A parts list is generated automatically during the calculation.
The complete module data are part of the RFEM/RSTAB printout report. The report contents and the extent of the results can be selected specifically for the individual designs.
![Detailed Settings for Lattice Tower](/en/webimage/007038/1590084/000283-en-png.png?mw=512&hash=59fe2a3f1cb6b31e7a31fdfa7ddb5d8ff2e00962)
When performing the design of tension, compression, bending, and shear loading, the module compares the design values of the maximum load capacity to the design values of the actions. If the components are subjected to both bending and compression, the program performs an interaction. You can determine the factors according to Method 1 (Annex A) or Method 2 (Annex B).
The flexural buckling design requires neither the slenderness nor the elastic critical buckling load of the governing buckling case. The module automatically calculates all required factors for the bending stress design value. RF-/TOWER Design determines the effective critical moment for lateral-torsional buckling for each member on every x-location of the cross-section.