Light Pole Install

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mstrlucky74

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Have these 30-50' light poles with (6) fixture attached( so the span is about 20') going on parking roof about 60' high. Wondering if we would crane this up to the roof level and assembly on roof but then we would need equipment to lift and mount them from there or would assembly take place on ground? Thanks.
 

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Don't know, however if I had to guess at the best practice it would be to have them assembled at ground level and have a crane tall enough to lift them all the way to the top of the garage, then bolt it in place. I don't see how you could get any lifting equipment to the top of the garage
 
JFletcher said:
Don't know, however if I had to guess at the best practice it would be to have them assembled at ground level and have a crane tall enough to lift them all the way to the top of the garage, then bolt it in place. I don't see how you could get any lifting equipment to the top of the garage
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Or have a crane lift a smaller crane to the parking garage roof?.
I believe you can also get a machine with a rotating claw to lift the pole by its base, which might be driveable to the roof.

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GoldDigger said:
Or have a crane lift a smaller crane to the parking garage roof?.
I believe you can also get a machine with a rotating claw to lift the pole by its base, which might be driveable to the roof.

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Like one of those machines they use for cutting down trees? Two crane rentals sounds more expensive than one...even if not, dunno about the weight of a crane and its load on a parking garage, even if there's enough space for it.
 
mstrlucky74 said:
Have these 30-50' light poles with (6) fixture attached( so the span is about 20') going on parking roof about 60' high. Wondering if we would crane this up to the roof level and assembly on roof but then we would need equipment to lift and mount them from there or would assembly take place on ground? Thanks.
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How tall are the poles above the roof? I think you are trying to say roof is about 60 feet high. Then it is a little confusing how tall the poles are above that point - if a parking structure with no access for high profile vehicles - I see no need for much more then 20-25 foot poles.

Either way if you need a crane to get poles to the roof, may as well make sure to get one tall enough to set them with the same crane, unless you already have a smaller boom truck, man lift etc that will work and can get to the roof.
 
I recommend cutting equipment costs as much as possible. Just get a scissor lift that isn't quite high enough, and make a makeshift jib out of a step ladder and some straps....:lol:
 

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electrofelon said:
I recommend cutting equipment costs as much as possible. Just get a scissor lift that isn't
quite high enough, and make a makeshift jib out of a step ladder and some straps....:lol:
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it would take some skill with dropping the pole, but i see it possible to get three
parked cars. two when the pole comes down, and pick up the spare with the VW
when the base kicks out.

we need someone with bowling experience for this project. John Childress, what say you on this?
 
Fulthrotl said:
it would take some skill with dropping the pole, but i see it possible to get three
parked cars. two when the pole comes down, and pick up the spare with the VW
when the base kicks out.

we need someone with bowling experience for this project. John Childress, what say you on this?
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:lol:

don't forget that when that top-heavy scissor lift comes down, if there's any justice in the world, it will wipe out that red minivan.
 
It's hard to tell from the detail you posted, but it almost looks like it's a detail for an in-grade foundation and not mounted starting at 60'-0" in the air. I'm really hoping the manufacturer has taken into account this additional height for their wind-load calculations with the EPA...not to mention the increased level of vibrations that would be expected with it. I know this is the estimating section, but I think it's an important distinction as your pole cost could go up significantly if the manufacturer was not specifying it to be that high in the air.
 
Check

Check

Check with the structural Engineer, if you can have a smaller crane or lift on upper deck,
Some of those parking decks can only support xxxxx weight per square foot.
 
tw1156 said:
It's hard to tell from the detail you posted, but it almost looks like it's a detail for an in-grade foundation and not mounted starting at 60'-0" in the air. I'm really hoping the manufacturer has taken into account this additional height for their wind-load calculations with the EPA...not to mention the increased level of vibrations that would be expected with it. I know this is the estimating section, but I think it's an important distinction as your pole cost could go up significantly if the manufacturer was not specifying it to be that high in the air.
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They are not in grade they are mounted on roofs at different levels....50' + roof elevations
 

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tw1156 said:
It's hard to tell from the detail you posted, but it almost looks like it's a detail for an in-grade foundation and not mounted starting at 60'-0" in the air. I'm really hoping the manufacturer has taken into account this additional height for their wind-load calculations with the EPA...not to mention the increased level of vibrations that would be expected with it. I know this is the estimating section, but I think it's an important distinction as your pole cost could go up significantly if the manufacturer was not specifying it to be that high in the air.
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Wind velocity is wind velocity isn't it? I don't see being 60 feet from grade being a factor all on it's own. If it is the tallest structure in the area then wouldn't those poles be subject to similar wind as if they were on grade level out in an open area?

Between buildings of the right shape - you can actually get more wind velocity between the buildings then you get away from the buildings, as they funnel the air between them.
 
Great point regarding wind velocity Kwired; I was thinking of it in more of a context of it being the tallest structure around and if on top of a parking deck, or whatever, it may be subjected to vibrations that one may not typically focus on when placing them on the ground, sometimes a sustained wind over an open area can cause vibration resonance and cause the pole to fail prematurely (pole dampeners fix this though or increased pole strength is required); In looking at the follow up photo from OP, it appears it may be for airport apron lighting and I would think the manufacturer would have taken this into account.

In Texas there are certain areas with constant wind (looking at you Lubbock/Panhandle) where this is a common enough issue that going with the structurally minimum pole is a gamble that is not followed.
 
mike7330 said:
Check with the structural Engineer, if you can have a smaller crane or lift on upper deck,
Some of those parking decks can only support xxxxx weight per square foot.
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the last time i did light poles, i needed a stamped drawing from a structural
engineer, a third party witness for the pour, and concrete analysis of the
bollard material...... and a T24 lighting certificate from a 3rd party.
 
This type is usually assembled on the ground or even by the manufacturer. I would guess you're going to have to do a helicopter lift. How are you mounting them?
 
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kwired said:
Wind velocity is wind velocity isn't it? I don't see being 60 feet from grade being a factor all on it's own. If it is the tallest structure in the area then wouldn't those poles be subject to similar wind as if they were on grade level out in an open area?

Between buildings of the right shape - you can actually get more wind velocity between the buildings then you get away from the buildings, as they funnel the air between them.
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Actually height will effect wind velocity. The wind can be blowing here on the valley floor at 20 mph, but you gain a little elevation such as going up to one of our water tanks and it can be 10-20 mph faster. Also buildings blocking the wind can affect it.
 
kwired said:
Wind velocity is wind velocity isn't it? I don't see being 60 feet from grade being a factor all on it's own. If it is the tallest structure in the area then wouldn't those poles be subject to similar wind as if they were on grade level out in an open area?
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No, there are frictional effects on wind velocity near the ground. As you go up in elevation, wind speeds increase. I'm pretty sure that in the open, 60 feet about the ground will be windier than 10 feet above the ground.

Cheers, Wayne
 
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