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What is the best way to model two welded beams parallel to each other?


The following options are available for modeling two welded bars parallel to each other (Figure 1):

1) Connection of the two members by means of rigid members at specific spacings:

  • Division of Members at Specific Distances: Right-click corresponding members → "Divide Member"
  • Connection of newly created nodes by rigid members

2) Decomposition of a member into a surface (only possible in RFEM):

  • Right-click one of the members → "Generate Surfaces from Member"
  • Displacement of the other member into a plane of the newly created surfaces so that the line of the displaced member is integrated into the corresponding surface (check: "Edit Surface" dialog box → "Integrated" tab
  • Definition of a member eccentricity so that the original position is restored ("Edit member" → "Settings" tab → "New member eccentricity" → here in practice: "Relative offset")
  • If the member that has now been split into surfaces is designed in an add-on module, you can simply define a result beam here

3) Use the single program SHAPE-THIN to model and design individual cross-sections


Parallel Welded Double Members


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  • Updated 10/21/2020

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