Why the eHORA map of Austria gives different snow loads than your Geo-Zone tool?

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Why the eHORA map of Austria gives different snow loads than your Geo-Zone tool?

Answer

The differences between our snow load map and the HORA web application result from the interval of the data used. Our application strictly refers to the current standard ÖNORM B 1991‑1‑3:2022‑05 with an interval of 0.5 kN / m².

On the other hand, the HORA map uses an interval of 0.1 kN / m². Thus, the Dlubal Geo-Zone Tool outputs the more conservative, strictly standard-compliant values.

The images show the difference for the same coordinates at an example location in Austria. The eHORA map is shown above, our Geo-zone tool is shown below.

Keywords

eHORA Geo zones ÖNORM B 1991-1-3:2022-05 Snow load map Characteristic snow load

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  • Updated 08/04/2022

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