The issue of the design temperature for the tower skirt
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Looking at the standards related to towers, it is stated that for skirts with transition sections, when the design temperature of the tower is less than 200, the design temperature of the skirt shell should take into account the influence of the ambient temperature. But how exactly should this be taken into consideration? Should I use the ambient temperature? What should be done then?
Confirmation: Is it less than 200 or greater than 200?
The design temperature for the skirt shell (excluding the transition section) shall be taken as the lowest monthly average temperature plus 20 degrees. See NBT 47041
It seems complicated, but in simple terms, it involves using a transition section made of the same material as the head. Install an air barrier. The operating temperature for the lower section can be taken as 50 degrees. There are hardly any that exceed 50 degrees.
It’s clearly explained in 47041!
But it says on nbt47041 that it doesn’t contain excessive segments! How is it calculated if there are excessive segments?