Affiliation:
1. University of Nevada, Reno Seismological Laboratory 174 Mackay School of Mines Reno, Nevada 89557-0141
2. California Institute of Technology Dept. of Civil Engineering , MS 104-44 Pasadena, CA 91125
Abstract
Abstract
We have developed an analytical solution for the rocking and overturning response of a two-dimensional, symmetric rigid block subject to a full sine wave of horizontal ground acceleration. We use this solution to provide lower-bound estimates of the peak ground acceleration at Point Reyes Station, California, during the 1906 San Francisco earthquake that toppled the San Francisco-bound train. Our results, for a 3% damping ratio, indicate that for a single cycle of a sine wave the minimum toppling accelerations at 1, 1.5, and 2 Hz are 0.35g, 0.5g, and 1.05g, respectively. For more realistic accelerograms the toppling accelerations are about 1.1g (complex synthetic) and 0.76g (Lucerne record of the 1992 Landers earthquake).
Publisher
Seismological Society of America (SSA)
Subject
Geochemistry and Petrology,Geophysics
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