Examining Spatial Intra-event Variability Of Peak Ground Accelerations
As A Function Of Separation Distance
Author(s)
H. Kawakami & H. Mogi
Abstract
Examining spatial intra-event variability
of peak ground accelerations
as a function of separation distance
H. ~awakami' & H. ~ o ~ i ~
' ~ e o s ~ h e r e Research Institute of Saitama University, Japan
2 Department of Civil and Environmental Engineering, Saitama
University, Japan
Abstract
Peak ground acceleration (PGA) as a measure of earthquake motion intensity
is an important factor in the earthquake-resistant design and reliability
analysis of structures. The purpose of this paper is to examine the spatial
variability of PGAs (recorded at the same epicentral distance) as a function
of separation distance. To do this, we define PGA ratios as spatial
intra-event variations of PGAs and examine their statistical characteristics.
We analyze the probability distribution of the ratios, and formulate equations
for their probability density functions, mean values, standard deviations
and percentiles. The above-mentioned statistics are then estimated using accelerometer
arrays of the Chiba, SMART-
Keywords
Related Book
Other papers in this volume
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