Study of Building Safety Monitoring by Using Cost-Effective MEMS Accelerometers for Rapid After-Earthquake Assessment with Missing Data

Suffering from structural deterioration and natural disasters, the resilience of civil structures in the face of extreme loadings inevitably drops, which may lead to catastrophic structural failure and presents great threats to public safety. Earthquake-induced extreme loading is one of the major re...

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Autores principales:	Jian-Fu Lin, Xue-Yan Li, Junfang Wang, Li-Xin Wang, Xing-Xing Hu, Jun-Xiang Liu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	cost-effective MEMS accelerometer building safety monitoring missing data reconstruction structural health monitoring after-earthquake assessment Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/9e496292a6be468a8c76cdc035a6026a
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spelling	oai:doaj.org-article:9e496292a6be468a8c76cdc035a6026a2021-11-11T19:16:24ZStudy of Building Safety Monitoring by Using Cost-Effective MEMS Accelerometers for Rapid After-Earthquake Assessment with Missing Data10.3390/s212173271424-8220https://doaj.org/article/9e496292a6be468a8c76cdc035a6026a2021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7327https://doaj.org/toc/1424-8220Suffering from structural deterioration and natural disasters, the resilience of civil structures in the face of extreme loadings inevitably drops, which may lead to catastrophic structural failure and presents great threats to public safety. Earthquake-induced extreme loading is one of the major reasons behind the structural failure of buildings. However, many buildings in earthquake-prone areas of China lack safety monitoring, and prevalent structural health monitoring systems are generally very expensive and complicated for extensive applications. To facilitate cost-effective building-safety monitoring, this study investigates a method using cost-effective MEMS accelerometers for buildings’ rapid after-earthquake assessment. First, a parameter analysis of a cost-effective MEMS sensor is conducted to confirm its suitability for building-safety monitoring. Second, different from the existing investigations that tend to use a simplified building model or small-scaled frame structure excited by strong motions in laboratories, this study selects an in-service public building located in a typical earthquake-prone area after an analysis of earthquake risk in China. The building is instrumented with the selected cost-effective MEMS accelerometers, characterized by a low noise level and the capability to capture low-frequency small-amplitude dynamic responses. Furthermore, a rapid after-earthquake assessment scheme is proposed, which systematically includes fast missing data reconstruction, displacement response estimation based on an acceleration response integral, and safety assessment based on the maximum displacement and maximum inter-story drift ratio. Finally, the proposed method is successfully applied to a building-safety assessment by using earthquake-induced building responses suffering from missing data. This study is conducive to the extensive engineering application of MEMS-based cost-effective building monitoring and rapid after-earthquake assessment.Jian-Fu LinXue-Yan LiJunfang WangLi-Xin WangXing-Xing HuJun-Xiang LiuMDPI AGarticlecost-effective MEMS accelerometerbuilding safety monitoringmissing data reconstructionstructural health monitoringafter-earthquake assessmentChemical technologyTP1-1185ENSensors, Vol 21, Iss 7327, p 7327 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cost-effective MEMS accelerometer building safety monitoring missing data reconstruction structural health monitoring after-earthquake assessment Chemical technology TP1-1185
spellingShingle	cost-effective MEMS accelerometer building safety monitoring missing data reconstruction structural health monitoring after-earthquake assessment Chemical technology TP1-1185 Jian-Fu Lin Xue-Yan Li Junfang Wang Li-Xin Wang Xing-Xing Hu Jun-Xiang Liu Study of Building Safety Monitoring by Using Cost-Effective MEMS Accelerometers for Rapid After-Earthquake Assessment with Missing Data
description	Suffering from structural deterioration and natural disasters, the resilience of civil structures in the face of extreme loadings inevitably drops, which may lead to catastrophic structural failure and presents great threats to public safety. Earthquake-induced extreme loading is one of the major reasons behind the structural failure of buildings. However, many buildings in earthquake-prone areas of China lack safety monitoring, and prevalent structural health monitoring systems are generally very expensive and complicated for extensive applications. To facilitate cost-effective building-safety monitoring, this study investigates a method using cost-effective MEMS accelerometers for buildings’ rapid after-earthquake assessment. First, a parameter analysis of a cost-effective MEMS sensor is conducted to confirm its suitability for building-safety monitoring. Second, different from the existing investigations that tend to use a simplified building model or small-scaled frame structure excited by strong motions in laboratories, this study selects an in-service public building located in a typical earthquake-prone area after an analysis of earthquake risk in China. The building is instrumented with the selected cost-effective MEMS accelerometers, characterized by a low noise level and the capability to capture low-frequency small-amplitude dynamic responses. Furthermore, a rapid after-earthquake assessment scheme is proposed, which systematically includes fast missing data reconstruction, displacement response estimation based on an acceleration response integral, and safety assessment based on the maximum displacement and maximum inter-story drift ratio. Finally, the proposed method is successfully applied to a building-safety assessment by using earthquake-induced building responses suffering from missing data. This study is conducive to the extensive engineering application of MEMS-based cost-effective building monitoring and rapid after-earthquake assessment.
format	article
author	Jian-Fu Lin Xue-Yan Li Junfang Wang Li-Xin Wang Xing-Xing Hu Jun-Xiang Liu
author_facet	Jian-Fu Lin Xue-Yan Li Junfang Wang Li-Xin Wang Xing-Xing Hu Jun-Xiang Liu
author_sort	Jian-Fu Lin
title	Study of Building Safety Monitoring by Using Cost-Effective MEMS Accelerometers for Rapid After-Earthquake Assessment with Missing Data
title_short	Study of Building Safety Monitoring by Using Cost-Effective MEMS Accelerometers for Rapid After-Earthquake Assessment with Missing Data
title_full	Study of Building Safety Monitoring by Using Cost-Effective MEMS Accelerometers for Rapid After-Earthquake Assessment with Missing Data
title_fullStr	Study of Building Safety Monitoring by Using Cost-Effective MEMS Accelerometers for Rapid After-Earthquake Assessment with Missing Data
title_full_unstemmed	Study of Building Safety Monitoring by Using Cost-Effective MEMS Accelerometers for Rapid After-Earthquake Assessment with Missing Data
title_sort	study of building safety monitoring by using cost-effective mems accelerometers for rapid after-earthquake assessment with missing data
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/9e496292a6be468a8c76cdc035a6026a
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Study of Building Safety Monitoring by Using Cost-Effective MEMS Accelerometers for Rapid After-Earthquake Assessment with Missing Data

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