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Re: 1997 Building drift limits

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Jim, 

A statement is being added to the Blue Book Commentary indicating that for 
the calculation of drifts accommodating anchorage of cladding-elements, only 
shear drift component of displacement need to be considered - e.g., the 
flextural component of drift does not need to be taken into consideration.  
This clarification will be in the 2000 Blue Book Commentary to Section 
1633.2.4 due for publication this summer.  


Ali Sadre