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Title |
Review of the Priority Index for Selection between Repair and Reinforcement Methods of Dam Facilities
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Authors |
김동현(Dong Hyun Kim) ; 박형준(Hyung Jun Park) ; 윤희정(Hee Jung Youn) ; 이승오(Seung Oh Lee) |
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DOI |
https://doi.org/10.11112/jksmi.2023.27.3.1 |
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Keywords |
우선순위지수; 보수·보강; 댐 시설물; 유지관리 Priority index; Repair and reinforcement; Facility; Maintenance |
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Abstract |
After the collapse of the Seongsu Bridge in the 1990s in Korea, attention was focused on the maintenance of facilities. The government has established various policies since the enactment of the Act in 1995 until recently. In general, safety inspections are performed to evaluate the safety grade of facilities, and facilities are maintained and managed by performing repairs and reinforcements for defects. However, since the budget is limited, it is impossible to carry out repair and reinforcement projects for all defects. It is necessary to prioritize repair and reinforcement measures. Then, the priority index (PI) is presented considering the importance of members, the seriousness of defects, and economic feasibility. In this index, the degree of influence can be adjusted within the range of 50 to 100% according to the expert's subjective judgment, and the same weight is set for some specific members. Also, the effect through repair and reinforcement is not taken into account decisively, and most of them have a limit in which priority is determined by economic feasibility. Therefore, in this study, through several case studies, problems with the priority index were reviewed and an equation was presented to improve them.
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