[SML] Loading Bridge design...

[Bruce Bennett]

We have one 1970-era fly system. It was designed in England - Hall Stage - and is slated for full replacement.

For building code from that era, NYC-specific building code might include something. I’ve had luck in other areas with this code.

Bruce

> On Jun 2, 2025, at 13:10, Will Leonard via Stagecraft <stagecraft at theatrical.net> wrote:
> 
> 
> Howdy,
> 
> We are doing an install on a building that was built in 1976 & I need some information from the experts on the List:
> 
>  With this project, we are having to work with an Architectural Firm who has no theater experience. We are having to explain to them how things are actually work/are used, which is not a problem because this is very common as we deal with remodels, etc.
> 
> However, they are trying to tell us that the loading bridge is only designed for a Live Load of 20psf. This means that 1- we cannot build a scaffolding to reinforce the head steel (as they are requiring) but also that 2- the bridge cannot have the stage weights stacked on it as it was (& has been since the building first opened). 
> 
> What I am looking for is if someone can quote (or direct me to where I can find) documentation that the building codes of the 1970s required Live Load ratings (150 psf? like the stage floor). I don't want the client to not be able to use their newly installed counterweight system because of incorrect information, so I reach out to the group to see if I am crazy.
> 
> Let me know what you think (dangerous request I know) ;) 
> - Will Leonard
> Design Manager
> C: 281-752-1060
> 
> 
> 
> ____________________________________________________________
> For list information see <http://stagecraft.theprices.net/>
> Stagecraft mailing list
> Stagecraft at theatrical.net
> http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://theatrical.net/pipermail/stagecraft_theatrical.net/attachments/20250602/f434b368/attachment.html>