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논문 기본 정보

자료유형
학술저널
저자정보
Hae‑Chang Cho (Technology Center) Sang‑Hoon Lee (University of Seoul) Seung‑Ho Choi (University of Seoul) Seong‑Tae Yi (Inha Technical College) Won‑Hee Kang (Western Sydney University) Kang Su Kim (University of Seoul)
저널정보
한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.17 No.3
발행연도
2023.5
수록면
471 - 487 (17page)

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초록· 키워드

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Regular safety inspections of existing reinforced concrete (RC) structures are required according to the regulations and criteria set by each country. In South Korea, the safety inspection regulations provided by the Korea Infrastructure Safety and Technology Corporation (KISTEC) are followed. These regulations were developed based on fuzzy theory to avoid subjective decisions, and provide standardized deterioration grades for member types, floors, and the entire structure. However, the safety inspection regulation by the KISTEC often provides unconservative evaluation results. In particular, as the importance factors of beam and slab members are set lower than those of other members, there are cases in which deteriorations occurring in beams and slabs are not properly reflected in the floor level evaluation. In this study, to overcome such limitations, case studies were carried out and modified importance factors for structural member types were proposed considering the failure probabilities of each member type based on the reliability theory. The importance modification factor was calculated based on the strength ratio of structural members so that the more dangerous the members are, the more impact they give on the evaluation. Overall, compared to the KISTEC method, the proposed method provided conservative but practical assessment results, and it was found that the proposed importance factors can be very useful to properly reflect the effects of damaged members on the deterioration status evaluation of the floors and the entire structure.

목차

Abstract
1 Introduction
2 Review of Korea Infrastructure Safety Corporation (KISTEC) Inspection Method
3 Proposed Method Based on Structural Reliability Theory
4 Summary and Conclusions
References

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