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Earthquake Loads UBC 97-IBC2000-2003

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UBC 97 Section 1630.1.1 has Eq. (30-1) where the term Eh is included as part of E and is defined  as V or Fp, When I go to look at IBC 2000 and 2003 noticed that Section 1617.1.1 now includes a term called Qe that is defined as "The effect of horizontal seismic forces" but nothing else is provided that refers to the V or Fp, It would be good that IBC elaborates more on the definition of Qe and provides some language in the definition that points the reader to the V and Fp expressions for the horizontal seismic forces.

Any Comments from anyone on this ?


pedro r. muñoz, Ph.D., P.E.

PRM Engineering, LLC

Haverhill, MA