[논문]교량 성능 정보에 기초한 자산가치 평가 방법 연구

이용준; 박경훈; 선종완

doi:10.11112/jksmi.2023.27.5.57

교량 성능 정보에 기초한 자산가치 평가 방법 연구
A Study on the Asset Valuation Method Based on the Performance Information of Bridge 원문보기

한국구조물진단유지관리공학회 논문집 = Journal of the Korea Institute for Structural Maintenance and Inspection, v.27 no.5, 2023년, pp.57 - 66

이용준 (한국건설기술연구원 구조연구본부) , 박경훈 (한국건설기술연구원 구조연구본부) , 선종완 (한국건설기술연구원 구조연구본부)

초록
AI-Helper

사회기반시설의 자산가치 평가는 자산의 효율적인 관리를 위한 합리적인 의사결정에 필수적이며, 자산을 올바르게 인식하기 위한 지표가 될 수 있다. 국내 자산가치 평가는 일반적으로 정액법 기반의 상각후대체원가를 적용하고 있어 내용연수 기간 동안 일정하게 감가상각되어 실질적인 가치를 평가하지 못하고 있다. 교량의 성능을 합리적으로 고려한 자산가치 평가를 위해 와이블 분포를 활용하여 교량의 평균수명, 신뢰도, 고장율 등 교량의 성능지표를 추정하였다. 추정된 성능지표와 결함도지수를 활용하여 새로운 자산가치 평가 방법을 제안하고 기존 방법과 비교·분석하였다. 제안한 가치평가 방법은 교량의 성능을 고려할 수 있어 기존 방법보다 객관적이고 현실성 있는 것으로 판단된다.

Abstract ▼ AI-Helper

Asset valuation of social infrastructure is essential for rational decision-making for efficient management of assets. In addition, it can be an indicator for correctly recognizing assets. In general, Korea applies depreciated replacement cost based on the straight-line method to evaluate asset value, yet this is unsuitable for evaluating actual value because it is depreciated at a constant rate over the useful life period. In order to evaluate the asset value considering the performance of the bridge, the performance index of the bridge is estimated using the Weibull distribution. Using the estimated performance indicators and defect index, a new asset value evaluation method is proposed and compared and analyzed with the existing method. The proposed valuation method can take into account the performance of the bridge, so it is judged to be more objective and reasonable than existing method.

주제어

표/그림 (23)

그림 Fig. 1 Research methodology and process
표 Table 1 Comparison of asset value evaluation method
그림 Fig. 2 Performance profile and value depreciation of bridge
표 Table 2 Important defects of bridge
그림 Fig. 3 Current status of target bridge service life
그림 Fig. 4 Important defect ratio by target bridge service life
그림 Fig. 5 Type of life data
그림 Fig. 6 Status of target bridge life data
표 Table 3 Data collection
표 Table 4 Example of data set
그림 Fig. 7 Probability plot of bridges life data
그림 Fig. 8 Reliability and failure probability of bridges
표 Table 5 Mean life to failure of bridge
표 Table 6 Status of Collected Construction Cost information of bridges(2017~2021)
표 Table 7 Construction cost of bridges(2017~2021)
표 Table 8 Construction cost index
표 Table 9 Results of calculation of construction cost per unit area in terms of present value
그림 Fig. 9 Concept of PBD
표 Table 10 Criteria for grade and defect-rate
표 Table 11 Number of bridge by condition rating
표 Table 11 Number of bridge by condition rating
표 Table 12 Result of total asset valuation(Unit: One million KRW)
표 Table 13 Result of total asset valuation(Unit: One million KRW)

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