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Re: 1997 UBC 1630.1.1

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Again, here, we've opted for simplicity by using Allowable Stress Design so 
that the vertical compenent can be ignored, as the Code doth sayeth in its 
definition of Ev in this section.

Bruce Resnick, SE
Parker Resnick Str. Eng.



In a message dated 7/13/99 2:05:31 PM Pacific Daylight Time, 
AGrathwol(--nospam--at)BoyleEngineering.com writes:

<< Equation 30-1 combines the effects of horizontal and vertical earthquake
 loads.  However, the code fails to indicate how the combined load is to be
 applied for purposes of design.  Are we to infer that this combined force is
 supposed to be applied in the horizontal direction only?  
 It's not clearly stated in the code. >>