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RE: Fixed File Cabinet - Dead Load or Li

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If my 20'x12', 40,000 pound file cabinet ends up in the bunched in the corner, I am in trouble regardless. I think it is more likely the a/c is going to end up being moved :-).

I should explain, this is a filing system that rolls on structural tracks, like train tracks, that are bolted to the floor. This thing is pretty big and cannot be casually moved. The installers are pretty sophisticated, which is why they hire guys like me to tell them if it is ok to install them. They know they are very heavy and frequently require upgrades to the floor system. I think the closest system this can be compared ot is a bridge crane (yes, it is a rough analogy).

eric green
-speaking for me, not my employer

-----Original Message-----
From: Christopher Wright [mailto:chrisw(--nospam--at)skypoint.com]
Sent: Tuesday, July 23, 2002 11:24 AM
To: ?
Subject: RE: Fixed File Cabinet - Dead Load or Li


>The question of LL vs DL seems to me to be one of probability.
I think it's a matter of the dynamic nature of the load consequently the
possibility of amplification, the possibility of re-location and the 
likelihood that it's repetitive and a possible source of fatigue. 

>I do not see much difference between a rolling file cabinet and a large
>a/c compressor or air handler (which ASCE clearly indicates is a dead load).
The difference is that one rolls and the other doesn't. The A/C isn't 
going to end up bunched in a corner somewhere with a lot of other units 
when someone re-models the space or replaces carpets.

Christopher Wright P.E.    |"They couldn't hit an elephant at
chrisw(--nospam--at)skypoint.com        | this distance"   (last words of Gen.
___________________________| John Sedgwick, Spotsylvania 1864)
http://www.skypoint.com/~chrisw


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