Bernd Runge Apr 30, 2009:

Pick the most suitable (or even leave it out) Stiel m
2. (BT, TK) post (Pfosten beim Fachwerk);
3. (frame) column, frame post, framing column, supporting member, upright (Stütze);
4. (BT) strut (Pfettendach);
5. (BT) timber pillar; 6. (BT, Hb) wooden pillar (Holzfachwerk)

© 2009 Langenscheidt KG, Langenscheidt Fachverlag, Berlin und München und Routledge Ltd./Taylor & Francis Group, London

Sybille Brückner Apr 30, 2009:

Stiellasten Could it be the load on the "leg" if the turbine stands upright ?
Crane specialists call the "legs" of a crane "Stiel".

schnitzelplanet Apr 30, 2009:

Vertikallasten could it mean field loads...
vertical (field) loads...