• Title/Summary/Keyword: 구조물 유지관리

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Optimum Service Life Management Based on Probabilistic Life-Cycle Cost-Benefit Analysis (확률론적 생애주기비용-이익분석 기반 수명관리 최적화 기법)

  • Kim, Sunyong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.4
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    • pp.19-25
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    • 2016

  • Engineering structures including civil infrastructures require a life-cycle cost and benefit during their service lives. The service life of a structure can be extended through appropriate inspection and maintenance actions. In general, this service life extension requires more life-cycle cost and cumulative benefit. For this reason, structure managers need to make a rational decision regarding the service life management considering both the cost and benefit simultaneously. In this paper, the probabilistic decision tool to determine the optimal service life based on cost-benefit analysis is presented. This decision tool requires an estimation of the time-dependent effective cost-benefit under uncertainty to formulate the optimization problem. The effective cost-benefit is expressed by the difference between the cumulative benefit and life-cycle cost of a deteriorating structure over time. The objective of the optimization problem is maximizing the effective cost-benefit, and the associated solutions are the optimal service life and maintenance interventions. The decision tool presented in this paper can be applied to any deteriorating engineering structure.

  • https://doi.org/10.5762/KAIS.2016.17.4.19 인용 PDF KSCI

A Study on Development of the Intelligent Bridge Maintenance System Using RFID (RFID를 이용한 지능형 교량 유지관리 시스템 개발에 관한 연구)

  • Jo, Byung-Wan;Lee, Yun-Sung;Kim, Heon;Lee, Dong-Woon
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.33 no.5
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    • pp.2107-2124
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    • 2013

  • The inspections that are being done on current bridges in our country are made to go through a process of being recorded on the management system and then converted by the computer. This has deteriorated the credibility of manual-analog types of data, inefficient care of information, and produced potential problems of the structures of bridges through subjective evaluations. In order to solve these troubles, this research has aimed at effectiveness, management, and convenience so that the inspector at the actual scene of the bridge structures will be able to achieve the primary purpose of infrastructure safety through precise supervision. To assist this, this study has suggested a state of the art IT intellectual management system that has applied RFID. This system has been designed to decrease the inspecting time on the actual scene, which will provide more time for efficient inspection and by using the converted DB, managing and utilizing high quality data will come naturally and through the objective evaluation, it will be possible to make exact judgments of the structures of the bridge. Also, regardless of the location, it has been found that the work performance was excellent through highly effective management.

  • https://doi.org/10.12652/Ksce.2013.33.5.2107 인용 PDF KSCI

Design of Management Structure Measuring Integrated Monitoring System Based on Mobile Cloud (모바일 클라우드 기반 구조물 유지관리계측 통합모니터링시스템 설계)

  • Min, Byung-Won;Oh, Yong-Sun
    • Proceedings of the Korea Contents Association Conference
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    • 2014.11a
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    • pp.9-10
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    • 2014

  • 구조물 계측 및 유지관리에 포함되는 계측센서, 계측장비, 전산장비, 통신장비, 소프트웨어 등은 구조물 수명에 비해 비교적 짧은 내구수명을 가지기 때문에 공용 기간 중 지속적으로 교체/변경이 요구되고 있으며, 소프트웨어 또한 분석기술의 향상과 정보통신기술의 발전 등을 계속해서 반영해야 하므로 일정기간마다 모니터링시스템에 대한 업그레이드 작업이 요구되고 있다. 그러나, 기존에 개발된 시스템은 구조물 관리자에 의한 일부 하드웨어와 분석 알고리즘의 변경이나 업그레이드가 쉽지 않고 모니터링 시스템의 구축에 활용된 프로그램 내부구조 파악이 어려워 원 개발자의 지속적인 지원에 의존해야한다. 본 논문에서 제안된 모바일 클라우드 기반 구조물 유지관리계측 통합모니터링시스템에서는 구조계가 평상시나 특수한 상황에서 장 단기적으로 어떠한 거동을 보이고 있는지를 분석하고, 이를 토대로 향후의 거동이 어떻게 될지 예측하기 위해서 확률과 통계기법의 적용을 통해서 구할 수 있는 새로운 데이터 분석 기법을 적용하였으며, 모바일 클라우드 기반으로 데이터를 수집하고, 많은 데이터 양 및 데이터 신뢰도 수준에서 건전성평가를 할 수 있는 새로운 개념의 구조물 거동계측 통합모니터링시스템 설계로 기존의 단점을 해결할 수 있도록 개선하였다.

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Deformation Measurement of Structures by Close - Range Photogrammetry - A Target for Tunnel Structures - (근거리사진측량에 의한 구조물 변형측정 -터널구조물을 대상으로-)

  • 김감래;김명배
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.15 no.1
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    • pp.91-96
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    • 1997

  • In order to ensure the safety of a structure, it is essential to put in practice all sorts of measurement from the plan and execution to the management by stages. These measurements make it possible to verify a propriety of a plan and forecast an accident or a collapse caused by long lapse of time, making use of accumulated data. Close-Range Photogrammetry is a method to meet improvement and development of surveting technique. which offered data for maintenance and management of a structure. Dus to applying this way. reliance on measuring a variation of structure. Besides, data of variation will be utilized for maintenance and management of a structure.

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