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ShakeNet: A portable wireless sensor network for instrumenting large civil structures

Kohler, Monica D. and Hao, Shuai and Mishra, Nilesh and Govinda, Ramesh and Nigbor, Robert (2015) ShakeNet: A portable wireless sensor network for instrumenting large civil structures. U.S. Geological Survey Open-File Report, 2015–1134. U.S. Geological Survey , Reston, VA. https://resolver.caltech.edu/CaltechAUTHORS:20160209-161259545

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Abstract

We report our findings from a U.S. Geological Survey (USGS) National Earthquake Hazards Reduction Program-funded project to develop and test a wireless, portable, strong-motion network of up to 40 triaxial accelerometers for structural health monitoring. The overall goal of the project was to record ambient vibrations for several days from USGS-instrumented structures. Structural health monitoring has important applications in fields like civil engineering and the study of earthquakes. The emergence of wireless sensor networks provides a promising means to such applications. However, while most wireless sensor networks are still in the experimentation stage, very few take into consideration the realistic earthquake engineering application requirements. To collect comprehensive data for structural health monitoring for civil engineers, high-resolution vibration sensors and sufficient sampling rates should be adopted, which makes it challenging for current wireless sensor network technology in the following ways: processing capabilities, storage limit, and communication bandwidth. The wireless sensor network has to meet expectations set by wired sensor devices prevalent in the structural health monitoring community. For this project, we built and tested an application-realistic, commercially based, portable, wireless sensor network called ShakeNet for instrumentation of large civil structures, especially for buildings, bridges, or dams after earthquakes. Two to three people can deploy ShakeNet sensors within hours after an earthquake to measure the structural response of the building or bridge during aftershocks. ShakeNet involved the development of a new sensing platform (ShakeBox) running a software suite for networking, data collection, and monitoring. Deployments reported here on a tall building and a large dam were real-world tests of ShakeNet operation, and helped to refine both hardware and software.


Item Type:Report or Paper (Report)
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.3133/ofr20151134DOIReport
https://pubs.er.usgs.gov/publication/ofr20151134PublisherReport
Additional Information:This work was funded by U.S. Geological Survey National Earthquakes Hazards Reduction Program Award Numbers G09AP00101 and G09AP00102. We acknowledge intellectual support from the Reftek engineers who were involved at every level of these development efforts. We are also grateful for reviews from John Evans and Tat Fu and editing by Jessica Dyke that greatly strengthened this report.
Funders:
Funding AgencyGrant Number
USGSG09AP00101
USGSG09AP00102
Series Name:U.S. Geological Survey Open-File Report
Issue or Number:2015–1134
Record Number:CaltechAUTHORS:20160209-161259545
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20160209-161259545
Official Citation:Kohler, M.D., Hao, S., Mishra, N., Govindan, R., and Nigbor, R., 2015, ShakeNet—A portable wireless sensor network for instrumenting large civil structures: U.S. Geological Survey Open-File Report 2015–1134, 31 p., http://dx.doi.org/10.3133/ofr20151134.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:64355
Collection:CaltechAUTHORS
Deposited By: Monica Kohler
Deposited On:10 Feb 2016 22:42
Last Modified:03 Oct 2019 09:37

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