well – actually I hadn’t thought too much about that! I thought we’d be able to
lift it to the crane once it was up high enough. If we have 4 guys on it I’d
guess the weight at the end is going to be around 400# so that shouldn’t be too
difficult. Basically we’d just be taking some of the weight off the legs ...
Maybe I need to dig under that base and somehow strap a 3/4” ply board under it
to use as a sled... Or have a 4x4 going through the tower near the base and 3
guys on either side of it ... thanks!
g.
From: Fred Keen
Sent: Wednesday, October 12, 2016 11:19 AM
To: R Morris ; StellarCAT
Cc: tower
Subject: Re: [TowerTalk] Lifting a pre-built section of tower using a crane -
how to strap it off
As you lift the tower, it was a lot easier for us having three men to hold the
guy wires away from the tower as it was lifted.
Have you given any thought to how you're going to move the bottom of tower as
the crane lifts it? We used a small front end loader bucket, there is not a lot
of weight involved but the bottom will drag the ground until the point where
the crane has the tower section off the ground.
Fred KC5YN
On Wednesday, October 12, 2016 9:19 AM, R Morris <robrk@nidhog.net> wrote:
The crane guy will know how, and usually pick up at the 60% point. In your
case, 40 feet, and a choker around the whole tower.
Sent from my iPhone
On Oct 12, 2016, at 10:06, StellarCAT <rxdesign@ssvecnet.com> wrote:
Ok,
Another question: so I have this 60’ long section of R55 with a rotating ring
at the 48’ point which will have guys hanging down from it ... the weight is
probably around 850#. The tower is laying with the top closest to where the
crane will be set up (probably 50’ away from its nearest end) and the tower
going away from the crane.
How do I ‘strap’ this for the crane to lift it?
I’m concerned that the rungs are not strong enough – their welds – to strap
around them ... do I somehow wrap around the legs using three straps all going
up to the hook?
Gary
K9RX
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|