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Re: Load - Occupany Live Load -Reply

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Our comments have to do with taking the equipment as part of the dead load IE
treating it as permanent for vertical loads. When you add 50 psf to the floor
structure plus equipment, I think we approach the same  total load situation
you appear to represent: floor structure plus 100 psf.

There are some who will agree with you, others with me. As a plan reviewer, I
would find your approach acceptable. But as minimum, I think it is more than
required. As I read footnote 3 in Table 16-A,  assembly live loads of 100 psf
require "generally accessible to the public".  There is a distinct difference
between weight rooms and exercise rooms where the 100 psf is appropriate. In my
opinion,  weight rooms are not generally accessible as required due to the
presence of the equipment. 

Because the weight room of a fitness center is not an exact match to items
listed in the ASCE or UBC tables,  judgement must be used and similarities must
be drawn. Herein lies our difference.

Tim McCormick. P.E.
City of Los Angeles

>>> Lew Midlam <Lew.Midlam(--nospam--at)> 03/31/98 07:18pm >>>
I have to disagree with Ernie and Tim.  The UBC ('91 edition,  sorry I don't
have a newer ed, but I assume it's similar) requires that public areas be
designed for 100 PSF (Table 23-A for Assembly areas - "and other areas", and
Footnote 3). ASCE 7-88 backs this up in Table C3. Since the equipment isn't
'built-in' as plumbing or kitchen equipment is, I'd treat it as part of the
Live Load.

Lew Midlam, PE

Dennis S. Wish wrote:

> My client wants to relocate a workout room from one building to another. It
> is currently located in a Office structure located on a hospital campus. The
> building is not OSHPOD (sorry about the inital's if wrong) controlled.
> The current equipment room has weights and aerobic type equipment - the
> worst of which weights under 1000 lbs. Most of it is lighter pieces around
> 300 lbs.
> They wish to relocate to a second floor of the office building which is
> constructed of Spancrete planks. I did a similar report for them a few
> months ago and had John Hinton at Spancrete investigate a plank with from
> the building and add a 1kip concentrated load. There was no measurable
> deflection to be concerned with.
> The problem is the live load requirments. I'm not sure where this fits in
> the code. It is not a Gymnasium, nor is it used for Aerobic classes of
> twenty or thirty people jumping up and down. Each piece of equipment takes
> up at least twenty or thirty square feet and allowing for 3' access between
> the equipments makes it accessible to roughly 50 square foot per person.
> Remember too, these are hospital and outpatients (as well as staff) seeking
> therapy or aerobic training on the equipment.
> What is the allowable live load for this. I would guess the code allowable
> for a gym with fixed seating is 100 psf. If it is this high, can I use a
> realistic live load based upon each piece of equipment. The worst case
> equipment is the weight machine at 1000 lbs and which takes roughly 36
> square feet including benches. This amounts to only 28 psf.
> I'd like some feedback if you please.
> Thanks
> Dennis Wish PE
> La Quinta, California
> wish(--nospam--at)
> ICQ# 6110557
> "Silence is the virtue of fools."
> Francis Bacon