한국지진공학회논문집 (Journal of the Earthquake Engineering Society of Korea)

  • 제25권6호
  • /
  • Pages.283-292
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  • 2021
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  • 1226-525X(pISSN)
  • /
  • 2234-1099(eISSN)
한국지진공학회 (Earthquake Engineering Society of Korea)
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가속도계를 이용한 사장교의 지진거동 계측시스템 개발에 대한 연구

A Study on the Development of a Seismic Response Monitoring System for Cable Bridges by Using Accelerometers

  • 정성훈 (인하대학교 건축공학과) ;
  • 장원석 (인하대학교 건축공학과) ;
  • 신수봉 (인하대학교 사회기반시스템공학부)
  • Jeong, Seong-Hoon (Department of Architectural Engineering, Inha University) ;
  • Jang, Won-Seok (Department of Architectural Engineering, Inha University) ;
  • Shin, Soobong (Department of Civil Engineering, Inha University)
  • 투고 : 2021.10.01
  • 심사 : 2021.10.23
  • 발행 : 2021.11.01
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초록

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 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 processes 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 and cable-stayed bridge.

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과제정보

이 논문은 국토교통부 건설기술연구사업의 연구비지원(21SCIP-B146946-04)에 의해 수행되었습니다.

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