We have a project where there is a very high corridor at a high school (45-50 feet high). There are 30-inch deep steel 'I' beams spaced at around 20-ft apart.
Should this be considered obstructed or unobstructed?
Should deflectors be at 1"-12" below deck, or can they be lowered to maximum of 22" below deck? Do all deflectors need to be at the same elevation?
Since the beams are deeper than the deflector elevation, I'm looking at Table 22.214.171.124.2 for distances from the beam to avoid the beam with the sprinkler spray.
Thank you in advance for your input.
Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
5/8/2023 07:24:14 am
Depth of the beam is only one component of obstructed construction rules. If the beans are 20' apart and that is the only obstruction then you need to use the table noted.
5/8/2023 07:45:56 am
What's the spacing of the beams on center?
5/8/2023 08:15:36 am
20 feet on center is unobstructed construction.
5/8/2023 08:57:08 am
How wide is the corridor, assuming full height walls?
5/8/2023 09:17:47 am
The walls are full height and the width varies as the walls are angled. The width dimension is between 35'-50'.
5/8/2023 09:15:08 am
20-ft on center doesn't sound like its obstructed. Maybe I missed something
5/8/2023 09:44:31 am
If the beams are 20' apart, what are the framing member types? Bar joist? Purlins?
5/8/2023 01:51:36 pm
This sounds like unobstructed to me!
Leave a Reply.
Subscribe and learn something new each day:
Top May 2023 Contributors
Get 100 Days of Free Sample Questions right to you!
PE PREP SERIES