Re: [TowerTalk] Lifting a pre-built section of tower using a crane - how to strap it off

[Grant Saviers <grants2@pacbell.net>]

A good catch re managing the bottom end of the 60' tower assembly being 
hoisted.  I used a fork lift and sling at the bottom. A good crane op 
can swing the boom to minimize the drag and load.   Also, rigging to the 
top with three slings for this much tower will have it truly vertical 
and much easier for the tower man to join the sections.  With 3 choker 
slings on the legs there are very low loads on the rung welds.
Grant KZ1W

On 10/12/2016 8:19 AM, Fred Keen via TowerTalk wrote:
> 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
>
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