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A Data Driven Methodology for Assessing Impact of Earthquakes on the Health of Building Structural Systems

by Dionisio Bernal and Eric Hernandez

Bernal, Dionisio, and Eric Hernandez (2005). A Data Driven Methodology for Assessing Impact of Earthquakes on the Health of Building Structural Systems. SMIP05 Seminar on Utilization of Strong-Motion Data, p. 89 - 106.

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Abstract

A data-driven approach for post-earthquake posting of buildings is presented. The approach is based on the analysis of residuals obtained by subtracting the measured responses from reference signals that reflect the behavior of the healthy system. The residuals are used to compute two indices from which the impact of the motion on the structure is assessed. One index measures the extent of nonlinearity and the other looks at changes in structural characteristics after the strong motion part of the record is over. Results obtained for a number of buildings taken from the CSMIP database suggest the approach may be suitable for automated posting.