Holes in Steel Members
How can I consider holes in steel members?
Answer:
For the calculation of members, it is possible to define the cross-sections in RFEM and RSTAB that create a member with the openings arranged regularly (circular or honeycombed).If you want to place a single hole in a steel beam, you can use the "Generate Surfaces from Member" tool and put the hole as a circular opening into the web surface.
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Designing rigid end plate connections is difficult for four-row connection geometries and multi-axis bending stresses, because there are no official design methods.
The European standard EN 1993-1-8, Section 4.5.3.3. provides the user with a simplified method for the ultimate limit state design of fillet welds. According to the standard, the design is fulfilled if the design value of the resultant acting on the fillet weld area is smaller than the design value of the weld's load-bearing capacity. Thus, if you want to dimension the weld for a surface model, you will be faced with a variety of results due to the nature of FEM calculations. Therefore, we show in the following text how to determine the force components from the model.
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