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RE: POT Bearings for Steel B

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I'm afraid I was imprecise.  By "design" I don't mean detail design of the bearing per se.

But it is required to give the manufacturer some guidelines as to what you want.  Bearing footprint, skew of bridge and width of seat are some examples of those.  But there are also some "rules of thumb" according to my understanding, that allow you to determine slide trajectories for guided bearings, translational fixity, etc.

That is what I really need guidance concerning.

-----Original Message-----
From:	Roger Turk [SMTP:73527.1356(--nospam--at)]
Sent:	Friday, April 10, 1998 12:59 PM
To:	seaoc(--nospam--at)
Subject:	POT Bearings for Steel B


POT bearings are generally proprietary and capacities are based on the way 
they are manufactured, taking into consideration confinement of the 
elastomeric material, thickness, etc.

I would select and specify one or several manufacturers as acceptable.  A 
major consideration is the size of the bearing and skew of the bridge which 
will determine the minimum width of your pier/abutment seat.

A. Roger Turk, P.E.(Structural)
Tucson, Arizona

. > Has  anyone got ANY recommendations as to design guides/texts for 
. > designing these?
. > 
. > I have yet to discover anything truly useful, and the drawings go out next
. > week!