Ground Motion Characteristics Based on Type of Input Motion and Spectral Matching Technique for South Carolina
Publication: Geo-Congress 2022
ABSTRACT
The selection of input motion and modification (spectral matching) technique for generating acceleration-time history for the dynamic analysis of infrastructure systems is a crucial step. In this study, the effects of the type of input motion (synthetic and real) and the spectral matching (time and frequency domain) techniques on the characteristics of modified motion are investigated for selected sites in South Carolina. The site-specific uniform hazard spectra (UHS) were obtained by performing probabilistic seismic hazard analysis for hard rock site conditions using the Central and Eastern United States Seismic Source Characterization (CEUS-SSC) and NGA-East ground motion models. The synthetic motions were generated using the point-source stochastic model of Atkinson and Boore (1995), and real motions were obtained from the PEER database. The study concluded that the modified ground motion characteristics differ significantly between synthetically generated and real ground motions, also time domain and frequency domain matching techniques. Based on the results, it is recommended to use real motions with the time domain matching technique for generating representative ground motions for South Carolina.
Get full access to this article
View all available purchase options and get full access to this chapter.
REFERENCES
Amevorku, C., Andrus, R., Rix, G., Carlson, C., Wong, I., Ravichandran, N., Harman, N., and Jella, V. S. (2022). “Modeling dynamic properties of South Carolina Coastal Plain sediments for ground response analysis,” Proc., GeoCongress, ASCE.
Andrus, R., Amevorku, C., Rix, G., Carlson, C., Wong, I., Ravichandran, N., Jella, V. S., and Harman, N. (2022). “Modeling dynamic properties of rock in South Carolina for seismic ground response analysis,” Proc., GeoCongress, ASCE.
Al Atik, L., and Abrahamson, N. A. (2010). “An improved method for non-stationary spectral matching,” Earthquake Spectra, 26(3), pp.601–617.
Athanasopoulos-Zekkos, A. (2010). “Variability in earthen levee seismic response due to time history selection,” Proc., 5th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics, San Diego, California.
Atkinson, G., and Boore, D. (1995). “New ground motion relations for eastern North America,” Bulletin of the Seismological Society of America. 85(1), pp.17–30.
Bommer, J. J., and Acevedo, A. (2004). “The use of real earthquake accelerograms as input to dynamic analysis,” Journal of Earthquake Engineering, 8(S1), pp.43–91.
Carlson, C., Zekkos, D., Athanasopoulos-Zekkos, A., and Hubler, J. (2014). “Impact of modification on ground motion characteristics and geotechnical seismic analyses for a California site,” Journal of Earthquake Engineering, 18(5), pp.696–713.
Carlson, C., Rix, G., Wong, I., Andrus, R., Ravichandran, N., Amevorku, C., Jella, V. S., and Harman, N. (2022). “Development of site amplification factors for hard rock to reference outcrop site conditions in the state of South Carolina,” Proc., GeoCongress, ASCE.
Chapman, M. C. (2006). “User’s guide to SCENARIO_PC and SCDOTSHAKE,”, Columbia, SC.
Chiou, B. S. J., Darragh, R., Gregor, N., and Silva, W. (2008). “NGA project strong-motion database,” Earthquake Spectra, 24(1), 23–44.
Durá-Gómez, I., and Talwani, P. (2009). “Finding faults in the Charleston area, South Carolina: 1. Seismological data,” Seismological Research Letters 80 (5), 883–900.
Guisbert, S., Zekkos, D., and Nisar, A. (2010). “Time vs. frequency domain ground motion modification: Effects on site response analyses and seismic displacements,” 9th U.S. National and 10th Canadian Conference on Earthquake Engineering, Toronto, Canada.
Kayen, R., and Mitchell, J. (1997). “Assessment of liquefaction potential during earthquakes by Arias Intensity,” Journal of Geotechnical and Geoenvironmental Engineering, 123(12), pp.1162–1174.
Naeim, F., and Lew, M. (1995). “On the use of design spectrum compatible time histories,” Earthquake Spectra, 11(1), pp.111–127.
Rathje, E., and Antonakos, G. (2011). “A unified model for predicting earthquake-induced sliding displacements of rigid and flexible slopes,” Engineering Geology, 122(1-2), pp.51–60.
Rizzo, P., Shaw, D., and Jarecki, S. (1975). “Development of real/synthetic time histories to match smooth design spectra,” Nuclear Engineering and Design, 32(1), pp.148–155.
Wilson, R. C., and Keefer, D. K. (1985). “Predicting aerial limits of earthquake induced landsliding,” In, J. I. Ziony (ed.), Evaluating earthquake hazards in the Los Angeles region - An Earth-Science perspective, U.S. Geological Survey Professional Paper 1360, pp.317–345.
Zekkos, D., Carlson, C., Nisar, A., and Ebert, S. (2012). “Effect of ground motion modification technique on seismic geotechnical engineering analyses,” Earthquake Spectra, 28(4), 1643–1661. doi: https://doi.org/10.1193/1.4000077.
Information & Authors
Information
Published In
Geo-Congress 2022
Pages: 675 - 684
History
Published online: Mar 17, 2022
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.