TY - GEN
T1 - An assessment of site amplification factors for the Western United States
AU - Huang, Yin Nan
AU - Whittaker, Andrew S.
AU - Luco, Nicolas
PY - 2010
Y1 - 2010
N2 - The Next Generation Attenuation (NGA) ground motion relationships enable an assessment of the site class coefficients presented in the 2003 NEHRP Provisions and ASCE-7-05 for the Western United States. A site amplification study is performed using the three NGA relationships used by the USGS to update their seismic hazard maps for the Western United States. The average NGA site amplification factors show a clear dependency on period for average shear-wave velocity smaller than 270 m/s; can vary significantly within a site class (D or E) for a given bedrock spectral intensity in the mid- and long-period ranges; and are substantially greater than the current NEHRP/ASCE-7 site class coefficients in some cases.
AB - The Next Generation Attenuation (NGA) ground motion relationships enable an assessment of the site class coefficients presented in the 2003 NEHRP Provisions and ASCE-7-05 for the Western United States. A site amplification study is performed using the three NGA relationships used by the USGS to update their seismic hazard maps for the Western United States. The average NGA site amplification factors show a clear dependency on period for average shear-wave velocity smaller than 270 m/s; can vary significantly within a site class (D or E) for a given bedrock spectral intensity in the mid- and long-period ranges; and are substantially greater than the current NEHRP/ASCE-7 site class coefficients in some cases.
UR - https://www.scopus.com/pages/publications/84867160844
M3 - Conference contribution
AN - SCOPUS:84867160844
SN - 9781617388446
T3 - 9th US National and 10th Canadian Conference on Earthquake Engineering 2010, Including Papers from the 4th International Tsunami Symposium
SP - 2821
EP - 2830
BT - 9th US National and 10th Canadian Conference on Earthquake Engineering 2010, Including Papers from the 4th International Tsunami Symposium
T2 - 9th US National and 10th Canadian Conference on Earthquake Engineering 2010, Including Papers from the 4th International Tsunami Symposium
Y2 - 25 July 2010 through 29 July 2010
ER -