Solutions for Cable and Tensile Structures
Recommended Products for Cable and Tensile Structures
Response Spectrum Analysis
The Response Spectrum Analysis add-on performs seismic analysis using multi-modal response spectrum analysis. The spectra required for this can be created in compliance with the standards or can be user-defined. The equivalent static forces are generated from them. The add-on includes an extensive library of accelerograms from seismic zones that can be used to generate the response spectra.
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![KB 001880 | Design of Cable Structures in RFEM 6 and RSTAB 9](/en/webimage/049985/3840051/Seil_QS_EN.png?mw=512&hash=83dd891c6124be9c686441c4b37fe92db2c2062d)
![KB 001879 | Influence of Bending Stiffness of Cables](/en/webimage/049953/3835546/Seil.png?mw=512&hash=83e64fde3c3d0a1d2649d8e64587b93f4ab71876)
![Prestress Load Case](/en/webimage/025954/3177420/prestress_load_case.png?mw=512&hash=60581123917407110243ccf6ed2357cbe414d002)
![Member Load Initial Prestress](/en/webimage/010511/2965190/01_Anfangsvorspannung_en.png?mw=512&hash=7f5b2f6b895eb9651b6e20fa060cab1aee3c1868)
![Considering Initial State](/en/webimage/023013/3113695/Consider_Initial_State.png?mw=512&hash=114555a41d6dca91bfa180e208bf9e4e8f566bed)
Compared to the RF-FORM-FINDING add-on module (RFEM 5), the following new features have been added to the Form-Finding add-on for RFEM 6:
- Specification of all form-finding load boundary conditions in one load case
- Storage of form-finding results as initial state for further model analysis
- Automatic assignment of the form-finding initial state via combination wizards to all load situations of a design situation
- Additional form-finding geometry boundary conditions for members (unstressed length, maximum vertical sag, low-point vertical sag)
- Additional form-finding load boundary conditions for members (maximum force in member, minimum force in member, horizontal tension component, tension at i-end, tension at j-end, minimum tension at i-end, minimum tension at j-end)
- Material types "Fabric" and "Foil" in material library
- Parallel form-findings in one model
- Simulation of sequentially building form-finding states in connection with the Construction Stages Analysis (CSA) add-on
![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.