Good Afternoon:
Take a look at a HEK mast climber at http://www.hek.com/ We used one of
these on a 14 story structure a couple of years ago, The work platform is
strong and stable and we were dismantling and re-erecting over a2 day period
with 5 men.

The device can be configured to project out into recesses on the facade. We
rigged so that we could move quickly up and down the facade and, when at the
location we were working, install additional planks so that no waste
materials fell below.

We had five men, equipment, and tools on the platform. Rental costs were
high ($6000 US/month)
but it came in much lower than scaffolding a building we could not put swing
staging on.

A number of different manufacturers exist for these units.

Ken Johnson

----- Original Message -----
From: "david west" <[log in to unmask]>
To: <[log in to unmask]>
Sent: 07 August, 2001 12:42 PM
Subject: Re: enclosed swinging scaffolds


> Thanks for the help. Feedback from two of the great
> tall cities in the world is certainly useful (even if
> it is negative!).  We're combing the local regs for
> loopholes, although not optimistic, and I'll let you
> know if we have any success.
>
> One thought is to fix vertical rails (such as
> unistruts) to the facade (fixings through the windows)
> to provide continuous lateral restraint to the swing
> stages.  Problem is how you accommodate the changes in
> plane of the building facade (projecting courses etc).
>
> Our other hope is to combine such an approach with a
> netting / hoarding below which is downgraded in total
> capacity to accommodate localised impact loads, but
> not an overall 5 or 10 kPa uniformly distributed load.
>  This would significantly reduce the size of
> structural members required to cantilever it off the
> building.
>
> Thanks for the feedback.
>
> david west
>
>  --- "Score, Robert" <[log in to unmask]> wrote:
> > Same story here in Chicago. We have tried in the
> > past to present to the city
> > a means of accomdating sidewalk protection with
> > modified enclosures around
> > swing stage, but to no sucsess, the sidewalk
> > protection is always required.
> >
>
> > From: Hammarberg, Eric
> > Subject: Re: enclosed swinging scaffolds
> >
> > It sounds like we in New York City have similar
> > requirements. Here, swing
> > stage can be used for access but not for protection
> > of the sidewalk below.
> > We must provide a temporary bridge, rated at either
> > 150 or 300 pounds per
> > square foot. We can also provide netting below and
> > within 3 stories of the
> > work (I forget the load requirements but assume they
> > are about 150 psf.)
> >
> > There is no way to realistically accommodate these
> > requirements with swing
> > stage plus by its nature, swing stage is loose even
> > if tied into the facade
> > it can swing around.
> >
> > Sorry, I can't help
> >
> > Eric Hammarberg
>
>
>
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