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Drift Loads Vary Boca 81,84,99 !

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Title: Drift Loads Vary Boca 81,84,99 !

Wow! things have changed. For the same building with a roof ht difference of 8 ft and a contributing width of 120', location Phila, PA the max drift is:

BOCA '81        40 psf
BOCA '84        60 psf
BOCA '99        88 psf

Thank you Mattew Stuart for the fax, I'll keep it as a reference.

Keith Hyndman, P.E.
Engineering Solutions Inc.
436 Creamery Way, Suite 100
Exton, PA 19341
Phone: 610-524-1357
Fax: 610-524-1317

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