Thanks Baluncore. There has been one complete failure where the pole fell across the road. Since which our testing has identified a number of others which are cracking to various degrees around the HEZ of the base weld. (Of which we have removed the poles)
There are other factors being looked...
I hope if either of you are still reading this you don't mind the continued questions. But i appreciate your expert advise.
I have been doing some more reading, found some interesting research papers. Now if you hadn't guessed my questions are based on a real world problem, of which we are...
Thanks that's very helpful.
Would I be correct in saying that having a confirmation that the structure is designed for wind speeds up to X value is not the same as saying those wind speeds would not cause a natural resonance/vortex shredding problem?
I would interpret "Designed for wind speeds...
Not sure if this is the best place to ask this question but forums on this seem to be limited, can anybody explain how one would discover if a steel pole lighting structure is being effected by harmonic resonance?
I do not know what tools and methods would be used, if anyone can provide some...