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Which roof and ground plan shapes can be considered with the wind and snow load generators of RFEM/RSTAB?

Answer

The load generators create a rectangular building shape. The following roof shapes are available for the roof geometry:

  • Flat roof
  • Monopitch roof
  • Duopitch roof

In the case of different building or roof shapes, you can apply the loads manually using the tool "Generate Loads → From Area Load on Members via Plane." The load value must be determined manually.

It is also possible to generate the wind load for any building geometry with the new stand-alone program RWIND Simulation. This provides you with the possibilities for wind simulations.

and for generating wind loads. In conjunction with the structural FEA software RFEM or the structural frame analysis software RSTAB.


Input
The direct import of models from RFEM or RSTAB allows you to define the relevant parameters for the analyzed wind directions with the height-dependent wind profiles, based on the wind standard. This results in the corresponding load cases with globally defined parameters.

You can also run RWIND Simulation manually without RFEM or RSTAB. Furthermore, it is possible to import the data from STL vector graphics.

The import of terrain and buildings of the environment into the simulation is also possible from STL files.

By exchanging the data between RFEM or RSTAB and RWIND Simulation, you can easily use the wind analysis results as load cases in the usual RFEM or RSTAB work environment.

Features of RWIND Simulation
3D incompressible wind flow analysis with OpenFoam solvers
Direct model import of RFEM or RSTAB or STL files
Simple model changes using drag & drop and graphical adjustment assistance
Automatic corrections of the model topology with shrink wrap networks
Option to add objects from the environment (buildings, terrain, ...)
Height-dependent velocity profiles according to the standard
K-epsilon and K-omega turbulence models
Automatic mesh generating adjusted to the selected depth of detail
Parallel calculation with optimal utilization of the capacity of multicore computers
Results in just minutes for low-resolution simulations (up to 1 million cells)
Results within a few hours for simulations with medium/high resolution (1‑10 million cells)
Graphically display of results on the Clipper/Slicer planes (scalar and vector fields)
Graphical display of streamlines and streamline animation

Keywords

roof shape building geometry load generator hip roof snow load wind load

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RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD