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Dipl.-Ing. (FH) Walter Fröhlich
2019-10-09

Reason for Small Welds on Column Head Plate

The welds of a column head plate are very small. What is the reason?

Answer:

It is evident from the formula apparatus of EC 3‑1‑8 that the ultimate tensile forces of the beam end plate are introduced into the column flange, and from there directly into the column web.

Therefore, the upper end plate is not fully stressed by these forces.

For purely structural reasons, the column head plate is available for stiffening and the buckling panel limit, and in case of the required diagonal stiffener, it is used for the transmission of the proportional force that goes into the stiffener.

Welds of Column End Plate
Welds of Column End Plate
Author

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

References
  1. European Committee for Standardization. (2009). Eurocode 3: Design of Steel Structures – Part 1-8: Design of Joints; EN 1993‑1‑8:2005 + AC:2009. Berlin: Beuth Verlag GmbH.
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