Current seismic design practice often relies on the use of the uniform hazard response spectrum (UHRS), which implicitly includes motions from multiple earthquake sources and envelops possible spectra, yet does not represent a single event. Seismic hazard analyses at the site of a major Mississippi River crossing near St. Louis, Missouri, showed bimodal seismic hazard dominated by small, nearby earthquakes at short periods and large, distant earthquakes in the New Madrid seismic zone at long periods. UHRS motions resulted in large seismic demands and predictions of pervasive liquefaction that were inconsistent with historical and geologic records.
Abrahamson, N., Hashash, Y., Olson, S., Hague, S., Kim, B. Conditional Mean Spectra in Site-Specific Seismic Hazard Evaluation for a Major River Crossing in the Central United States,
Earthquake Enginering Reserch, 2015, с.47-69.
Abrahamson, N., Hashash, Y., Olson, S., Hague, S., Kim, B. .
Conditional Mean Spectra in Site-Specific Seismic Hazard Evaluation for a Major River Crossing in the Central United States.
: Earthquake Enginering Reserch, 2015, с.47-69.
Abrahamson, N., Hashash, Y., Olson, S., Hague, S., Kim, B. (2015)
Conditional Mean Spectra in Site-Specific Seismic Hazard Evaluation for a Major River Crossing in the Central United States,
: Earthquake Enginering Reserch, с.47-69
Abrahamson, N.,
Hashash, Y.,
Olson, S.,
Hague, S., &
Kim, B.
(2015).
Conditional Mean Spectra in Site-Specific Seismic Hazard Evaluation for a Major River Crossing in the Central United States. Earthquake spectra. Earthquake Enginering Reserch 31 (1), с.47-69.
