This series includes technical reports prepared by faculty, students and staff who are associated with the John A. Blume Earthquake Engineering Center at Stanford University. While the primary focus of Blume Center is earthquake engineering, many of the reports in this series encompass broader topics in structural engineering and materials, computational mechanics, geomechanics, structural health monitoring, and engineering life-cycle risk assessment. Each report includes acknowledgments of the specific sponsors for the report and underlying research. In addition to providing research support, the Blume Center provides administrative support for maintaining and disseminating the technical reports. For more information about the Blume Center and its activities, see https://blume.stanford.edu.
On October 15, 1979 during the Imperial Valley earthquake, the Imperial County Services Building, located in El Centro, California, became the first extensively instrumented building to sustain significant structural damage induced by seismic loads.
This report presents a preliminary assessment of the dynamic behavior of this building based on the vibration data recorded prior to (ambient), during, and after (ambient) the October 15, 1979 earthquake. The thirteen building and the three nearby free field records obtained during this earthquake are analyzed in detail in the time and frequency domains to trace the nonlinear response.
Pauschke, JM and Olievira, CS and Shah, HC and Zsutty, TC. (2013). A Preliminary Investigation of the Dynamic Response of the Imperial County Services Buildings During the October 15, 1979 Imperial Valley Earthquake. John A. Blume Earthquake Engineering Technical Report 49. Stanford Digital Repository. Available at: http://purl.stanford.edu/jn627pv1543
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