Long Period Strong Ground Motion and Its Use as Input to Displacement Based Design

2007 ◽  
pp. 23-51 ◽  
Author(s):  
E. Faccioli ◽  
C. Cauzzi ◽  
R. Paolucci ◽  
M. Vanini ◽  
M. Villani ◽  
...  
Keyword(s):  
Ground Motion ◽  
Strong Ground Motion ◽  
Long Period ◽  
Displacement Based ◽  
Strong Ground

231 Long-Period Strong Ground Motion at the Oil Storage Tank Sites Damaged due to the 1999 Chi-Chi Earthquake in Taiwan

2001 ◽  
Vol 2001.14 (0) ◽  
pp. 185-186
Author(s):  
Shoichi YOSHIDA ◽  
Shinsaku ZAMA ◽  
Minoru YAMADA ◽  
Kazuo ISHIDA ◽  
Takayasu TAHARA
Keyword(s):  
Ground Motion ◽  
Storage Tank ◽  
Strong Ground Motion ◽  
Long Period ◽  
Oil Storage ◽  
Oil Storage Tank ◽  
Strong Ground

scholarly journals Long-Period Strong Ground Motion

2009 ◽  
Vol 61 (Supplement) ◽  
pp. 433-440
Author(s):  
Shinsaku ZAMA
Keyword(s):  
Ground Motion ◽  
Strong Ground Motion ◽  
Long Period ◽  
Strong Ground

Long-period Strong Ground Motion and Damage to Oil Storage Tanks Due to the 2003 Tokachi-oki Earthquake

2004 ◽  
Vol 57 (2) ◽  
pp. 83-103 ◽  
Author(s):  
Ken HATAYAMA ◽  
Shinsaku ZAMA ◽  
Haruki NISHI ◽  
Minoru YAMADA ◽  
Yoshihiro HIROKAWA ◽  
...  
Keyword(s):  
Ground Motion ◽  
Strong Ground Motion ◽  
Storage Tanks ◽  
Long Period ◽  
Oil Storage ◽  
Strong Ground

scholarly journals A technique for simulating strong ground motion using hybrid Green's function

1998 ◽  
Vol 88 (2) ◽  
pp. 357-367 ◽  
Author(s):  
Katsuhiro Kamae ◽  
Kojiro Irikura ◽  
Arben Pitarka
Keyword(s):  
Green’S Function ◽  
Ground Motion ◽  
Green's Function ◽  
Green's Functions ◽  
Strong Ground Motion ◽  
Green’S Functions ◽  
Ground Motions ◽  
Large Earthquake ◽  
Long Period ◽  
Strong Ground

Abstract A method for simulating strong ground motion for a large earthquake based on synthetic Green's function is presented. We use the synthetic motions of a small event as Green's functions instead of observed records of small events. Ground motions from small events are calculated using a hybrid scheme combining deterministic and stochastic approaches. The long-period motions from the small events are deterministically calculated using the 3D finite-difference method, whereas the high-frequency motions from them are stochastically simulated using Boore's method. The small-event motions are synthesized summing the long-period and short-period motions after passing them through a pair of matched filters to follow the omega-squared source model. We call the resultant time series “hybrid Green's functions” (HGF). Ground motions from a large earthquake are simulated by following the empirical Green's function (EGF) method. We demonstrate the effectiveness of the method at simulating ground motion from the 1995 Hyogo-ken Nanbu earthquake (Mw 6.9).

Study on Long-Period Inelastic Spectra of Strong Ground Motion Containing Velocity Pulse

2011 ◽  
Vol 243-249 ◽  
pp. 3919-3926 ◽  
Author(s):  
Chun Feng Li ◽  
Xiao Jun Li ◽  
Yian Xiang Yu ◽  
Yong Bo Li
Keyword(s):  
Ground Motion ◽  
Strong Ground Motion ◽  
Time History ◽  
Elastic Response ◽  
Velocity Pulse ◽  
Long Period ◽  
Elastic Response Spectra ◽  
Time Histories ◽  
Original Time ◽  
Strong Ground

In order to understand fully the effect of strong ground motion containing velocity pulse on constant-ductility long-period inelastic spectra, we synthesize two time histories, not containing velocity pulse, whose elastic spectra are identical to that of original time history containing velocity pulse, and whose peak accelerations are as big as that of the original time history. The reason why we synthesize two time histories for one original time history is to avoid the effect of randomicity in selecting sample. We select two time histories of 1999 CHi-CHi earthquake as original time histories, one of which has two synthesized counterparts. It is found that although the elastic response spectra of original time histories are identical with those of their synthesized counterparts, their constant-ductility long-period inelastic spectra are different. We consider that the difference results from the velocity pulses which exist in the original time histories.

scholarly journals Strong ground motion of the San Fernando, California, earthquake: Ground displacements

1975 ◽  
Vol 65 (1) ◽  
pp. 193-225
Author(s):  
Thomas C. Hanks
Keyword(s):  
Ground Motion ◽  
Strong Ground Motion ◽  
Strong Motion ◽  
Geological Structure ◽  
Period Range ◽  
Long Period ◽  
Wave Forms ◽  
San Fernando ◽  
Displacement Wave ◽  
Strong Ground

abstract Two hundred and thirty-four components of ground displacement are the basis of an investigation of long-period strong ground motion in southern California arising from the San Fernando, California, earthquake. The displacement data are obtained from the double integration of strong-motion accelerograms via the base-line adjustment and filtering operations routinely performed in the series “Strong Motion Earthquake Accelerograms”. These procedures can recover long-period data from strong-motion accelerograms with considerable accuracy. Many-station comparisons of displacement data for which the station spacing is small compared to the wavelengths of interest reveal that uncertainties in displacement are less than 1 cm in the period range 5 to 8 sec, 1 to 2 cm at periods near 10 sec, and 2 to 4 cm in the period range 10 to 15 sec, for a data sensitivity of approximately 7.6 cm/g. For limited variations in epicentral distance (R) and source-station azimuth (ϕ), ground displacements show a strong coherence; for wider variations in R and ϕ, many of the observed variations in the displacement wave forms are easily attributable to well-understood seismological phenomena. Seismic moment, source dimension, radiation pattern, rupture propagation, the development of surface waves and their subsequent dispersion, and azimuthal variations in the gross geological structure all appear to have first-order significance in fashioning the gross amplitude and frequency content of the displacement wave forms and in explaining observed variations with R and ϕ. The essential simplicity of these displacement wave forms offers considerable optimism that long-period strong ground motion can be realistically synthesized with advance knowledge of the earthquake source parameters and gross geological structure.

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