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1997 UBC Interstory Drift Requirements for Glass Cladding

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There has been discussion on the SEAOSC List Service concerning whether glass 
cladding manufacturers can comply with the 1997 UBC Interstory Maximum Drift 
requirement equal to 0.025 h.

Allan Rubens, President of A. R. Associates, is presenting an hour and 
one-half seminar on the subject "Designing Structural Glass Walls" on March 
8, 2000, in San Francisco, CA at the Concourse Exhibition Center at 600 
Townsend on the corner of 7th and Townsend.  Cost is $20.  Contact George 
Mills at email: gmasc(--nospam--at) for more information.

I have just finished talking with Allan Rubens, who is a manufacturer's 
representative for Pilkington Glass Ltd.,  which has developed the 
Pilkington's Planar System, a float glass system that can, according to his 
discussion, accommodate seismic interstory drifts in compliance with the 1997 
UBC Interstory Drift Requirements.

Allan Rubens suggests that anyone wanting to know more about the Pilkington's 
Planar System should log on to Allan Rubens and Associates' web site:
http:\\\arassoc and then click on Pilkington Glass.  I have 
log on to his web site and Pilkington Glass and found it very informative. 

Please do not misconstrue my email message is a commercial for Allan Rubens 
and/or Pilkington Glass.  I am putting up this email message to better inform 
the earthquake engineering design professionals, who specify the 1997 UBC 
Interstory Drift requirements, about glass cladding manufacturers and 
installers, who believe they can meet the 1997 UBC Interstory Drift.

I have no conflict of interest or financial incentive to post this email 

I sell nothing!

Frank E. McClure   February 29, 2000