Stephen E Waldvogel

4 items:

2 of 2 : Maximum Considered Earthquake Geometric Mean Peak Ground Accelerations For background, please see the Parent Item. The Maximum Considered Earthquake Geometric Mean (MCEG) peak ground acceleration (PGA) values of the 2009 NEHRP Recommended Seismic Provisions and the 2010 ASCE/SEI 7 Standard are calculated from the data in the downloadable files below, via the following equations: PGA = min[ PGAUH , max( PGAD84th , 0.6 ) ] for the 2009 NEHRP Recommended Seismic Provisions; PGA = min[ PGAUH , max( PGAD84th , 0.5 ) ] for the 2010 ASCE/SEI 7 Standard; where PGAUH = uniform-hazard peak ground acceleration; PGAD84th = 84th-percentile peak ground acceleration; and 0.6 or 0.5 = deterministic lower limit peak ground acceleration. These peak ground... Categories: Data
Maps of earthquake ground motions for the 2009 NEHRP Recommended Seismic Provisions and the 2010 ASCE/SEI 7 Standard For designing buildings and other structures to safely resist earthquakes, the 2009 National Earthquake Hazards Reduction Program (NEHRP) Recommended Seismic Provisions and the 2010 American Society of Civil Engineers, Structural Engineering Institute (ASCE/SEI) 7 Standard contain maps of Risk-Targeted Maximum Considered Earthquake (MCER) spectral response accelerations, Maximum Considered Earthquake Geometric Mean (MCEG) peak ground accelerations, and long-period transition periods (TL). The MCER ground motions are also in the 2013 ASCE/SEI 41 Standard and the 2012 and 2015 editions of the International Building Code. The MCER, MCEG, and TL maps are derived from the U.S. Geological Survey (USGS) National Seismic... Tags: USGS Science Data Catalog (SDC)
1 of 2 : Risk-Targeted Maximum Considered Earthquake Spectral Response Accelerations For background, please see the Parent Item. The Risk-Targeted Maximum Considered Earthquake (MCER) spectral response acceleration (SS and S1) values of the 2009 NEHRP Recommended Seismic Provisions, the 2010 ASCE/SEI 7 Standard, the 2013 ASCE/SEI 41 Standard, and the 2012 and 2015 editions of the International Building Code are calculated from the data in the downloadable files below, via the following equations: SS = min[ SSUH * CRS , max( SSD84th , 1.5 ) ]; S1 = min[ S1UH * CR1 , max( S1D84th , 0.6 ) ]; where SSUH & S1UH = uniform-hazard spectral accelerations at periods of 0.2 & 1.0 seconds, respectively; CRS & CR1 = risk coefficients at spectral periods of 0.2 & 1.0... Categories: Data
Gridded earthquake ground motions for the 2009 NEHRP Recommended Seismic Provisions and 2010 ASCE/SEI 7 Standard For designing buildings and other structures to safely resist earthquakes, the 2009 NEHRP Recommended Seismic Provisions and the 2010 ASCE/SEI 7 Standard contain maps of Risk-Targeted Maximum Considered Earthquake (MCER) spectral response accelerations and maps of Maximum Considered Earthquake Geometric Mean (MCEG) peak ground accelerations. Identical values from the MCER maps are also in the 2013 ASCE/SEI 41 Standard and the 2012 and 2015 editions of the International Building Code. The MCER and MCEG ground motion maps are derived from USGS National Seismic Hazard Models via the gridded values of this data release. The data files in the "Child Items" below also underlie the corresponding USGS Seismic Design Web... Categories: Data; Tags: USGS Science Data Catalog (SDC)

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