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Structural health monitoring through dense instrumentation by community participants: the Community Seismic Network and Quake-Catcher Network

Kohler, M. D. and Heaton, T. H. and Cheng, M. H. and Singh, P. (2014) Structural health monitoring through dense instrumentation by community participants: the Community Seismic Network and Quake-Catcher Network. In: Proceedings of the 10th National Conference on Earthquake Engineering. Earthquake Engineering Research Institute . https://resolver.caltech.edu/CaltechAUTHORS:20160209-162449879

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Abstract

The Community Seismic Network and Quake-Catcher Network involve participants from communities at large to install low-cost accelerometers in houses and buildings for assessment of shaking intensity due to earthquakes. The seismometers are designed for two types of connec-tions: a USB-connected device which connects to the host’s computer, and a stand-alone sensor-plug-computer device that directly connects to the internet. The three-component sensors report both continuous data and amplitude anomalies in local acceleration to a Cloud computing service consisting of data centers geographically distributed across the continent, or to a distributed computing system. The continuous time series waveform data are being used to evaluate response parameters such as peak acceleration, peak velocity, and inter-story drift values. In addition, modal properties such as fundamental and higher mode frequencies and mode shapes are being computed from small and moderate earthquake data from the building. Building motion is computed for every floor of the building using only earthquake records from a single floor. Visualization models that map the instrumented buildings’ responses have been construct-ed using SketchUp and an associated plug-in to Matlab with recorded shaking data. This data visualization approach is different from other techniques because each building model is customized to show actual data recorded from that building on varying spatial scales, without the need for large-scale parallel computing facilities or complicated software that requires a steep learning curve.


Item Type:Book Section
ORCID:
AuthorORCID
Heaton, T. H.0000-0003-3363-2197
Additional Information:© 2014 Earthquake Engineering Research Institute. We acknowledge support from the Moore Foundation, National Science Foundation, George Housner Earthquake Engineering Research Endowment, Fred L. Hartley Family Foundation, the Croucher Foundation, and the Caltech Student Faculty Program.
Funders:
Funding AgencyGrant Number
Gordon and Betty Moore FoundationUNSPECIFIED
NSFUNSPECIFIED
George Housner Earthquake Engineering Research EndowmentUNSPECIFIED
Fred L. Hartley Family FoundationUNSPECIFIED
Croucher FoundationUNSPECIFIED
Caltech Summer Undergraduate Research Fellowship (SURF)UNSPECIFIED
Record Number:CaltechAUTHORS:20160209-162449879
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20160209-162449879
Official Citation:Kohler MD, Heaton TH, Cheng MH, Singh, P. Structural health monitoring through dense instrumentation by community participants: the Community Seismic Network and Quake - Catcher Network. Proceedings of the 10th National Conference on Earthquake Engineering, Earthquake Engineering Research Institute, Anchorage, AK, 2014
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:64356
Collection:CaltechAUTHORS
Deposited By: Monica Kohler
Deposited On:16 Feb 2016 23:51
Last Modified:03 Oct 2019 09:37

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