NZbraddles
Civil/Environmental
- Aug 5, 2008
- 4
Hello there,
I have recently moved to Europe and I'm now gaining my first experience using Eurocodes.
My question is in regard to a lightweight steel roof (but still quite big in plan dimension) on the top of a ductile (ductility factor 3) reinforced concrete structure.
In the past I would have designed the steel roof to an elastic load based upon "non-structural element" clauses of the code.
However following the same approach to Eurocode leads to a significantly larger lateral load than what I am used to. Since the main building model is set up for modal analysis, I can't simply put the roof on top as it will not take into account the resonance & whip-lash effect which the steel roof will be subject to (and the non structural element clauses try to estimate).
Reading through the Eurocode it seems to suggest that the non-structural clauses are related to elements such as partition walls, chimneys etc. This leads me to believe that there is an alternative way of designing such a roof to the Eurocodes. Is anyone able to point me in the right direction?
Regards,
Brad
I have recently moved to Europe and I'm now gaining my first experience using Eurocodes.
My question is in regard to a lightweight steel roof (but still quite big in plan dimension) on the top of a ductile (ductility factor 3) reinforced concrete structure.
In the past I would have designed the steel roof to an elastic load based upon "non-structural element" clauses of the code.
However following the same approach to Eurocode leads to a significantly larger lateral load than what I am used to. Since the main building model is set up for modal analysis, I can't simply put the roof on top as it will not take into account the resonance & whip-lash effect which the steel roof will be subject to (and the non structural element clauses try to estimate).
Reading through the Eurocode it seems to suggest that the non-structural clauses are related to elements such as partition walls, chimneys etc. This leads me to believe that there is an alternative way of designing such a roof to the Eurocodes. Is anyone able to point me in the right direction?
Regards,
Brad
