telecommunication tower: lower leg reinforcement
telecommunication tower: lower leg reinforcement
(OP)
Tower leg is overstressed by around 10% and bracing can not be added nor reducing antennas loading.
any proposals?
any proposals?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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telecommunication tower: lower leg reinforcement
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RE: telecommunication tower: lower leg reinforcement
RE: telecommunication tower: lower leg reinforcement
How to strengthen the legs at the lower panel noting panel is 3m and the legs are braced at 50cm interval
Regards.
RE: telecommunication tower: lower leg reinforcement
RE: telecommunication tower: lower leg reinforcement
unfortunately we can not encase the leg as we have to keep anchor bolts/bracing/etc.exposed for maintenance.
any sketch/calculations on how to strengthen the leg
RE: telecommunication tower: lower leg reinforcement
If so, you can stitch weld plates to the outside face of the angle legs, increasing the area and section modulus. should be a straightforward calculation to check the increased axial capacity. if the over stress is only 10% a 6 to 8mm plate should do it.
RE: telecommunication tower: lower leg reinforcement
if so the leg will have non uniform section how to proceed/or may be I'm missing something?
Thanks
RE: telecommunication tower: lower leg reinforcement
RE: telecommunication tower: lower leg reinforcement
Similar method for a four legged tower, only can use off the shelf angles.
Will gave to do some grinding for a tight fit...
Mike McCann, PE, SE (WA)
RE: telecommunication tower: lower leg reinforcement
Dik
RE: telecommunication tower: lower leg reinforcement
Initially, what concerned me about this strategy was the relative impermanence of the set up. I've relaxed on that since. Really, any determined vandal with a wrench could probably find a way to disassemble one of these towers with or without reinforcement.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: telecommunication tower: lower leg reinforcement
is it a column failure (which would be helped by mid-span reinforcement) or simple brute force (ie the ground reaction, which need to reinforce the ground attmt point) ?
It looks like a four poster to me (the far post is inline with the near one, but I think I can see the far footing).
Why is it impossible to add additional legs if reinforcing the existing legs doesn't work ?
How did this thing get to be 10% down ?
another day in paradise, or is paradise one day closer ?
RE: telecommunication tower: lower leg reinforcement
RE: telecommunication tower: lower leg reinforcement
Thanks any way
RE: telecommunication tower: lower leg reinforcement
dik;and
msquared48
in case bolted solution adopted did you add reinforcement in the base shoe vicinity (typical photo from other tower is attached).
Any actual examples/some sketches/or refrences/etc..
Regards.
RE: telecommunication tower: lower leg reinforcement
for the U bolts option do you have any references for such design
and references to verify U bolts size/spacing/etc..
Thanks for your time
RE: telecommunication tower: lower leg reinforcement
is it unreasonable to add feet, like another four on a diagonal diamond pattern ?
another day in paradise, or is paradise one day closer ?
RE: telecommunication tower: lower leg reinforcement
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.