B Occ. vs. A Occ.

[north star]

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I am reviewing plans for a new [ military ] training building.
The applicable codes are the `15 I-Codes, and others.

The RDP has listed the [ Interior ] square footage as: 5,783
plus an observation mezzanine.......Also, they have listed the
Occ. Group as "B", with an Occ. Load of "58".

QUESTION: Can a "B" Occ. Group have a calculated
occupancy load over fifty (50) and still be a "B" Occ. Group ?

I believe this building to be an A-3 Occ. Group designation.

Thanks for playing !

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[cda]

If you are dealing with the Uncle, you can



304.1 Business Group B.
Business Group B occupancy includes, among others, the use of a building or structure, or a portion thereof, for office, professional or service-type transactions, including storage of records and accounts. Business occupancies shall include, but not be limited to, the following:

• Educational occupancies for students above the 12th grade
  

• Training and skill development not in a school or academic program (this shall include, but not be limited to, tutoring centers, martial arts studios, gymnastics and similar uses regardless of the ages served, and where not classified as a Group A occupancy).
  
  
  
  
  Unless you call it a lecture hall

 

[RLGA]

Is it one large room or a group of smaller rooms? If the former, then it’s a Group A-3; if the latter, then probably a Group B (depending on the size of the size of the individual rooms). Either way, the occupant load would be “classroom” at 20 sf/occ. and not “business areas” at 100 sf/occ. Thus, the occupant load will be much higher than the 58 indicated.

 

[north star]

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The largest size room is listed at 4,474 sq. ft.
This is the area where troops will conduct video type
weapons firing & training ( Advanced Marksmen ).
Additionally there are 2 Restrooms, ...1 Storage \
Janitor's Closet ( 54 sq. ft. ), ...1 Open Office \
Classroom ( 479 sq. ft. ), ...1 Lobby ( 180 sq. ft. ) and
1 Office ( 144 sq. ft. ).

Thanks for your input !

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[cda]

Sounds like a bowling alley occupant load

Thing

Even though not live fire, will there be some resemblance of firing lanes/ slots/ assigned positions ??

 

[RLGA]

If not a classroom, then you could apply the intended actual load for the approximate 4500 sf space. Otherwise, I think the 100 sf/occupant may be okay. The occupant load for the 479 sf classroom should be based on 20 sf/occ., though.

 

[north star]

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Much Thanks ** cda ** & Ron.

** cda **, ...I am not sure about the actual set-up
of how this type of training will be performed.
There are four separate rows across the width
of the room, but no electrical power to anything in
the interior of this room........There is a mezzanine
serving as an observation point on one end of
this space, with a set of railing steps up to it.

I will mention the " 20 sf \ occ. " in my Comments
to the RDP.

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[cda]

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Much Thanks ** cda ** & Ron.

** cda **, ...I am not sure about the actual set-up
of how this type of training will be performed.
There are four separate rows across the width
of the room, but no electrical power to anything in
the interior of this room........There is a mezzanine
serving as an observation point on one end of
this space, with a set of railing steps up to it.

I will mention the " 20 sf \ occ. " in my Comments
to the RDP.

& = & = &

Sounds like bowling alley calculation

1 per lane plus add the people in the waiting area