UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS

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2021-12-09 4:16

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Conference: Bucharest University Faculty of Physics 2021 Meeting


Section: Atmosphere and Earth Science; Environment Protection


Title:
PREVENT - An integrated multi-sensor system for seismic monitoring of civil structures


Authors:
Alexandru TIGANESCU (1), Bogdan GRECU (1), Cristian NEAGOE (1), Dragos TOMA-DANILA (1), Dragos TATARU (1), Constantin IONESCU (1), Stefan-Florin BALAN (1)


*
Affiliation:
1) National Institute for Earth Physics


E-mail
alexandru.tiganescu@infp.ro


Keywords:
seismic monitoring; civil structures; multi-sensor


Abstract:
The process of monitoring and tracking a structure`s integrity over time is referred to as Structural Health Monitoring (SHM). The SHM systems gained a lot of momentum in the last years, in conjunction with the development of more accurate and less expensive seismic sensors, the technological advancements and increased computing resources. For a country with a high level of seismic risk like Romania, the need of developing and implementing such multidisciplinary systems is crucial for continuous monitoring of the state-of-health of structures, their degradation over time and a more reliable post-earthquake evaluation. It is well known that other factors such as the structural peculiarities, the soil properties and the atmospheric conditions will add complexity to the framework. In this context, the PREVENT project (Open system for integrated civil structures monitoring) main objective is to put together the research outcomes and the computational capabilities in order to develop, implement and test an integrated dynamic platform. This modern instrument will be capable of using real-time data from various types of sensors and state-of-the art algorithms to provide decision support services based on the structural behaviour. The first action consists of extensive instrumentation of the case-study building (IFA) with various sensors (three velocity sensors, seven acceleration sensors, one GNSS antenna and one meteorological station). The present paper focuses on the description of the instrumentation setup, data-flow, the PREVENT platform architecture and some preliminary results for the most recent Vrancea intermediate-depth earthquakes (ML ≤ 4.7). The expected results of the project will consist of the first database in Romania to offer quality raw and consistent processed data recorded in buildings (along with relevant engineering parameters) and will provide a valuable tool to the research community, earthquake engineering community, authorities and stakeholders as well as to teachers and students, for educational purposes.


Acknowledgement:
This work has been supported by the PREVENT project: Open system for integrated monitoring of civil structures, funded by a grant of the Romanian Ministry of Research and Innovation, UEFISCDI, project number PN-III-P2-2.1-PED-2019-0832, within PNCDI III.