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002684
Dipl.-Ing. (FH) Walter Fröhlich
2019-03-27

Design Message for Geometry Error Due to λ2 >1.4

What does the design message mean:
Geometry error left side:
End plate of the girder: lambda2 > 1.4
Column flange: lambda2 > 1.4
I cannot find an explanation in the manual or online.

Answer:

The auxiliary values λ1 and λ2 are required to determine the effective lengths.

These two values are used to determine an α value from Figure 6.11 of EN 1993‑1‑8, which is then used to calculate the effective lengths (for non-circular flow lines) of the T-stub flanges.

The maximum value for λ1 is 0.9 and the maximum value for λ2 is 1.4 → see Figure 6.11 of EN 1993‑1‑8.

Based on your geometry, however, a λ2 of > 1.4 results for the end plate, for example.

α can only be calculated with the maximum value of 1.4.

Geometry Error Lambda
Geometry Error Lambda
Author

Mr. Fröhlich provides technical support to our customers and is responsible for development in the area of reinforced concrete structures.

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