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RE: Base Isolators[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
- Subject: RE: Base Isolators
- From: William Keil <WJK(--nospam--at)brph.com>
- Date: Wed, 3 Nov 1999 14:30:01 -0500
Yes, this should have been included with the first point. Thanks. -----Original Message----- From: Robert Rollo [mailto:rrollo(--nospam--at)TEAM-PSC.com] coming from a zone 0 wind guy who has seen only photos . . . would the lead also serve as to be "lubricating" source to allow slippage between some of the components, yet still have sufficient compressive strength to bear axial ? The seminar I attended on isolation bearings revealed that: - the lead core is used because it is more flexible than steel. The lead core will deform along with the rubber. - the top and bottom steel plates are the load plates (from column to bearing and bearing to foundation. - the other plates are reinforcing the rubber (like a car tire) - it was mentioned that nothing is special about the steel but the chemistry of the rubber is likely to be proprietary. - I was led to believe that the structural engineer of record does not design the bearings. The floor plans along with the anticipated column loads are given to the isolation bearing manufacturer who then "customizes" the bearings to your specifications. That's the extent of my knowledge ... try contacting: Dynamic Isolation Systems, Inc. 3470 Mount Diablo Boulevard Suite A200 Lafayette, CA 94549 510.283.1166 510.283.4307 - FAX William J. Keil, P.E.
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