Development of a Structural Monitoring System for Cable Bridges by Using Seismic Accelerometers

Autor: Won Seok Jang, Hohyun An, Dae-Jin Kim, Jin Won Nam, Seong-Hoon Jeong
Rok vydání: 2020
Předmět:
Serviceability (structure)
Condition evaluation
Computer science
response indices
020101 civil engineering
02 engineering and technology
Accelerometer
lcsh:Technology
0201 civil engineering
lcsh:Chemistry
0203 mechanical engineering
General Materials Science
lcsh:QH301-705.5
Instrumentation
Fluid Flow and Transfer Processes
seismic accelerometer
structural health monitoring
lcsh:T
business.industry
Process Chemistry and Technology
General Engineering
cable-stayed bridge
Structural engineering
Condition assessment
lcsh:QC1-999
Computer Science Applications
Numerical integration
020303 mechanical engineering & transports
lcsh:Biology (General)
lcsh:QD1-999
lcsh:TA1-2040
Structural health monitoring
lcsh:Engineering (General). Civil engineering (General)
business
Raw data
lcsh:Physics
Structural monitoring
Zdroj: Applied Sciences
Volume 10
Issue 2
Applied Sciences, Vol 10, Iss 2, p 716 (2020)
ISSN: 2076-3417
Popis: In this study, a structural health monitoring system for cable-stayed bridges is developed. In the system, condition assessment of the structure is performed based on measured records from seismic accelerometers. Response indices are defined to monitor structural safety and serviceability and derived from the measured acceleration data. The derivation process of the indices is structured to follow the transformation from the raw data to the final outcome. The process includes, noise filtering, baseline correction, numerical integration, and calculation of relative differences. The system is packed as a condition assessment program, which consists of four major process of the structural health evaluation: (i) format conversion of the raw data, (ii) noise filtering, (iii) generation of response indices, and (iv) condition evaluation. An example set of limit states is presented to evaluate the structural condition of the test-bed cable-stayed bridge.
Databáze: OpenAIRE
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