This thread will track of the version history of the following download:
Reinf Conc. Staircase ACI-318-08
This is a new workbook, "IBC2009E.xls", for seismic analysis per the IBC 2009 Code. Since this version of the IBC Code still refers and in many cases defers back to use of the ASCE 7-05 Standard, the creation of this workbook was mostly an exercise in editing the particular section references used in the 2009 IBC Code.
I included an updated embedded link to the USGS Earthquake Hazards website, as well as an embedded link to the USGS Ground Motion Parameter Calculator, which may be freely downloaded and installed to aid in the determination of the seismic design parameters "Ss", "S1", etc.
For the sake of comparison, I also included the newer 2008 USGS earthquake hazard maps for "Ss" and "S1".
Being new, this workbook is version 1.0.