Damage Detection by Template Matching of Scattered Waves

Creators: Massari, Anthony Thomas¹; Clayton, Robert W.¹; Kohler, Monica D.¹

1. California Institute of Technology

Abstract

A method based on template matching is presented to detect and locate damage in buildings following severe shaking by an earthquake. The templates are constructed by finite‐element simulations of a suite of damage scenarios, with the solutions evaluated at the location (and orientation) of each sensor in the structure. The damage detection is carried out by cross‐correlating the templates with recordings acquired from earthquakes. A dense distributed network of sensors is important for detecting anomalies in the presence of ambient noise. The cross correlation of the templates with themselves provides a measure of the resolution of the damage location.

Additional Information

© 2018 Seismological Society of America. Manuscript received 20 October 2017; Published Online 4 September 2018. The authors thank the Community Seismic Network (CSN) project at Caltech for supplying data for the buildings used in this study and the building owners and engineers for supplying detailed plans that allowed us to build the computational models. A.M. was supported by the Caltech Housner Fellowship during this study. Data and Resources: The data used in this study were synthetically created. The modeling was done with ETABS available from Structural and Earthquake Engineering Software, Computers and Structures, Inc. (1995), Berkeley, California, https://www.csiamerica.com/products/etabs and http://docs.csiamerica.com/manuals/etabs/Analysis%20Reference.pdf (last accessed August 2018).

Attached Files

Accepted Version - BSSA-2017319_FINALED_2.pdf

Files

BSSA-2017319_FINALED_2.pdf

Files (5.0 MB)

Name	Size	Download all
BSSA-2017319_FINALED_2.pdf md5:10f84d5cb808a06c11704b8a9ab6277c	5.0 MB	Preview Download

Additional details

	All versions	This version
Views	0	0
Downloads	0	0
Data volume	0 Bytes	0 Bytes