Interesting discussion on this forum.
Steve is utilizing the scientific method that needs to be used to avoid a
Daubert challenge and ensure the proper conclusion, if there is one.
Scott
Office: (763) 425-1001 x 2
Cell: (612) 759-5556
-Original Message-
From: Sprinklerforum On Behalf
Thank you for this very detailed email.
The website to check for wind that day is down. I will check.
The possibility of the 8 inch riser (on a manifold with 4 other 8 inch risers
that were downstream from the fire pump) is real. Unfortunately new pipe was
installed before we could inspect. In
Fire sprinkler systems have historically been designed on what is called a
"deferred submittal" basis, which means that the construction docs are already
submitted or approved under a separate permit application. When sprinklers
are put out to bid, the work has historically included establishi
All elevators have pits. Most have shafts. Fire heat fuses the sprinkler
when it banks down from the elevator car's floor. Otherwise the heat goes
up the shaft.
On Fri, Feb 25, 2022 at 12:32 PM Ed Kramer via Sprinklerforum <
sprinklerforum@lists.firesprinkler.org> wrote:
> Speculation only, but
I should note that it was windy when I was investigating 3 days after the
event. I will check that for the date of loss. However, the clamps should
redesigned to handle this, no?
> On Feb 25, 2022, at 11:19 AM, John Hoffman via Sprinklerforum
> wrote:
>
> How windy was it? Steel joisted bu
Speculation only, but maybe an "enclosed shaft" (in this context) is one in
which debris originating from outside the shaft is unlikely to collect at the
bottom of the shaft. Conversely, a shaft that is not enclosed can collect
debris originating from outside the shaft. Or not.
Ed Kramer
Wire cage elevators in industrial settings are often unenclosed. The original
question, “What constitutes an “enclosed” shaft?”, I think is a question
asking, “Is not a shaft enclosed by definition?”. That makes sense to me. In
certain circumstances building codes require a shaft of specific wa
May be helpful. Maybe not.
https://www.nfpa.org/News-and-Research/Publications-and-media/Blogs-Landing-Page/NFPA-Today/Blog-Posts/2019/11/20/101wednesdays-vertical-opening-protection-in-nfpa-101
On Fri, Feb 25, 2022 at 7:01 AM Ken Wagoner via Sprinklerforum <
sprinklerforum@lists.firesprinkler.or
How windy was it? Steel joisted building roofs can move up and down a lot,
several inches, in the wind. Over time, this up and down could have an impact
on the pipe support system. You might check that and its potential affect on
pipe hangers. A structural engineer can probably look at the
Todd, and Matt,
Speculating here.
Some time ago I stayed in a hotel which had a huge multi-story atrium,
and along two of the four walls were elevators. Both elevator "shafts"
were open to the atrium for the length of travel, save for the pit at
the bottom.
That might be a shaft which is r
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