A note on the motion of a large area on ground surface during passage of synthetic strong motion waves

Abstract It is shown that the synthetic earthquake displacements over a large area (100×100 m 2 ) on ground surface can be described well by a plane surface undergoing translations and rotations, with only minor departures of displacements from those of a plane flat surface. Rotational motions are largest on deep soil sites over sediments and smallest for motions on the geological basement rocks.

[1]  Mihailo D. Trifunac,et al.  Northridge, California, earthquake of 1994: density of red-tagged buildings versus peak horizontal velocity and intensity of shaking , 1997 .

[2]  A. Zerva,et al.  SPATIAL VARIATION OF SEISMIC GROUND MOTIONS , 2002 .

[3]  Mihailo D. Trifunac,et al.  Coherence of dispersed synthetic strong earthquake ground motion at small separation distances , 2015 .

[4]  SURFACE STRAINS ASSOCIATED WITH STRONG EARTHQUAKE SHAKING , 1990 .

[5]  G. Housner.  Interaction of building and ground during an earthquake , 1957 .

[6]  A. Kiureghian.  A COHERENCY MODEL FOR SPATIALLY VARYING GROUND MOTIONS , 1996 .

[7]  H. Yamahara.  GROUND MOTIONS DURING EARTHQUAKES AND THE INPUT LOSS OF EARTHQUAKE POWER TO AN EXCITATION OF BUILDINGS , 1970 .

[8]  Mihailo D. Trifunac,et al.  Two-dimensional, antiplane, building-soil-building interaction for two or more buildings and for incident planet SH waves , 1975 .

[9]  Mihailo D. Trifunac,et al.  Generation of artificial strong motion accelerograms , 1979 .

[10]  Maria I. Todorovska,et al.  Ambient vibration tests of a seven-story reinforced concrete building in Van Nuys, California, damaged by the 1994 Northridge earthquake , 2000 .

[11]  M. Trifunac,et al.  Preliminary empirical model for scaling Fourier Amplitude Spectra of strong ground acceleration in terms of earthquake magnitude, source-to-station distance, and recording site conditions , 1976, Bulletin of the Seismological Society of America.

[12]  M. Trifunac,et al.  RESPONSE SPECTRA FOR DIFFERENTIAL MOTION OF COLUMNS , 1997 .

[13]  Mihailo D. Trifunac,et al.  The role of strong motion rotations in the response of structures near earthquake faults , 2009 .

[14]  Mihailo D. Trifunac,et al.  Northridge, California, earthquake of 1994: density of pipe breaks and surface strains , 1997 .

[15]  Mihailo D. Trifunac,et al.  Coherency of dispersed synthetic earthquake ground motion at small separation distances: Dependence on site conditions , 2015 .

[16]  Mihailo D. Trifunac,et al.  Experimental evidence for flexibility of a building foundation supported by concrete friction piles , 1999 .

[17]  P. Bard,et al.  Spatial coherence of seismic wave fields across an alluvial valley (weak motion) , 1997 .

[18]  M. D. Trifunac.  Curvograms of strong earthquake ground motion , 1990 .

[19]  Mihailo D. Trifunac,et al.  A note on correction of strong-motion accelerograms for instrument response , 1972, Bulletin of the Seismological Society of America.

[20]  Mihailo D. Trifunac,et al.  Synthetic earthquake ground motions on an array , 2013 .

[21]  Mihailo D. Trifunac,et al.  An array of strong-motion accelerographs in Bear Valley, California , 1975 .

[22]  Mihailo D. Trifunac.  Buildings as Sources of Rotational Waves , 2008 .

[23]  John F. Schneider,et al.  Empirical Spatial Coherency Functions for Application to Soil-Structure Interaction Analyses , 1991 .

[24]  H. L. Wong,et al.  Response of a rigid foundation to a spatially random ground motion , 1986 .

[25]  Dian-kui Liu,et al.  Scattering of SH waves by a scalene triangular hill , 2010 .

[26]  Mihailo D. Trifunac,et al.  Preliminary empirical model for scaling fourier amplitude spectra of strong ground acceleration in terms of modified mercalli intensity and recording site conditions , 1979 .

[27]  M. Trifunac.  Dependence of Fourier spectrum amplitudes of recorded earthquake accelerations on magnitude, local soil conditions and on depth of sediments , 1989 .

[28]  Mihailo D. Trifunac,et al.  A method for synthesizing realistic strong ground motion , 1971, Bulletin of the Seismological Society of America.

[29]  Mihailo D. Trifunac,et al.  Effects of foundation size on Fourier spectrum amplitudes of earthquake accelerations recorded in buildings , 1982 .

[30]  Mihailo D. Trifunac,et al.  Rocking strong earthquake accelerations , 1987 .

[31]  Chin-Hsiung Loh,et al.  Directionality and simulation in spatial variation of seismic waves , 1990 .

[32]  Mihailo D. Trifunac,et al.  The Nature of Site Response During Earthquakes , 2009 .

[33]  E. Vanmarcke,et al.  Stochastic Variation of Earthquake Ground Motion in Space and Time , 1986 .

[34]  Robert H. Scanlan,et al.  Seismic wave effects on soil‐structure interaction , 1976 .

[35]  T. Lay,et al.  Seismic wave-field observations at a dense, small-aperture array located on a landslide in the Santa Cruz Mountains, California , 1996, Bulletin of the Seismological Society of America.

[36]  M. Trifunac,et al.  Response envelope spectrum and interpretation of strong earthquake ground motion , 1971, Bulletin of the Seismological Society of America.

[37]  J. E. Luco,et al.  Strong earthquake motion and site conditions: Hollywood , 1970, Bulletin of the Seismological Society of America.

[38]  Mihailo D. Trifunac,et al.  Nonlinear soil response as a natural passive isolation mechanism—the 1994 Northridge, California, earthquake , 1998 .

[39]  Mihailo D. Trifunac,et al.  Q and high-frequency strong motion spectra , 1994 .

[40]  Katsutada Sezawa,et al.  Decay in the Seismic Vibrations of a Simple or Tall Structure by Dissipation of their Energy into the Ground , 1935 .