This manual describes the modeling of a stadium roof made of membranes in RFEM 6. Since the model consists of several segments, the creation of the individual segments is shown. Each segment consists of a main structure (a column, a stiffening element, cables) and a secondary structure (a membrane).
Structural Analysis Example | Membrane Roofing
![Prestress Load Case](/en/webimage/025954/3177420/prestress_load_case.png?mw=512&hash=60581123917407110243ccf6ed2357cbe414d002)
![KB 001883 | Plate Girder Design According to AISC 360-22 in RFEM 6](/en/webimage/051561/3980997/im1.png?mw=512&hash=b8237709c4f30213fac51d86d32a42bddde72f03)
![Steel Connection Rigidity and Its Influence on Structural Design](/en/webimage/051432/3972404/Rigidity-caseA.png?mw=512&hash=3be64e68ab2956fd2b92f0afa1559b3a8c72b468)
![KB 001880 | Design of Cable Structures in RFEM 6 and RSTAB 9](/en/webimage/049985/3840051/Seil_QS_EN.png?mw=512&hash=83dd891c6124be9c686441c4b37fe92db2c2062d)
![Feature 002666 | Ponding Load Type](/en/webimage/043928/3609971/43928.png?mw=512&hash=a23958c2b4b6d28b10dc15b053d00a53b2f20036)
The Ponding load type allows you to simulate rain actions on multi-curved surfaces, taking into account the displacements according to the large deformation analysis.
This numerical rainfall process examines the assigned surface geometry and determines which rainfall portions drain away and which rainfall portions accumulate in puddles (water pockets) on the surface. The puddle size then results in a corresponding vertical load for the structural analysis.
For example, you can use this feature in the analysis of approximately horizontal membrane roof geometries subjected to rain loading.
Go to Explanatory Video![Add-on "Steel Joints for RFEM 6" | Component Library](/en/webimage/043097/3898884/steel_joints_components.png?mw=512&hash=e4f835906155863fc7019d5043b22e553dc766f9)
- Numerous component types, such as base and end plates, web angles, fin plates, gusset plates, stiffeners, tapers, or ribs for easy input of typical connection situations
- Universally applicable basic components (such as plates, welds, bolts, auxiliary planes) for modeling complex connection situations
- Graphical display of the connection geometry with dynamic updating during the input
- Wide range of cross-section shapes: I-sections, U-sections, angles, T-sections, hollow sections, built-up cross-sections and thin-walled sections
- Library in the Dlubal Center with a large number of program-side template connections, including user-defined templates
- Automatic adaptation of the connection geometry based on the relative arrangement of the components to each other – even in case of subsequent editing of the structural components
![Feature 002840 | Graphical Add-on Result Display by Design Situation](/en/webimage/051593/3982947/Bemessungssituation.png?mw=512&hash=7fd0d9a61cbc8d701205795390d25dfae3caa76b)
In the Navigator – Results, you can select the design situations for which you want to display the add-on results graphically.
![Feature 002843 | Dimensioning with Result Function](/en/webimage/051576/3982510/1.png?mw=512&hash=9d7f6c198b6d4ae6ee8f2fa8bca75f85579e14c9)
For design objects, you can optionally display sags or extreme results.