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논문 기본 정보

자료유형
학술저널
저자정보
Moo‑Won Hur (Dongyang University) Kyoung‑Hun Chae (Dankook University) Hyun‑Ho Lee (Dongyang University) Tae‑Won Park (Dankook University)
저널정보
한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.19 No.2
발행연도
2025.3
수록면
385 - 403 (19page)

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초록· 키워드

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This study assesses improvements in the head and extension sleeve parts for a post-installed anchor. The sleeve and head details were proposed to enhance the structural performance of the post-installed anchor, and the optimal structural shape was determined through finite element analysis. The analysis results revealed that the anchor’s performance was most efficiently improved when the sleeve length was 9.0 mm and the head length was 3.0 mm. In the model with these dimensions applied, the performance improved approximately 1.71 times compared to the existing model, validating the effectiveness of the proposed structural details. The improved pull-out strength test of anchor diameter M12 showed an increase of 1.25 times in normal-strength concrete and 1.28 times in high-strength concrete, with an embedded depth of 50 mm. The improved pull-out strength test of anchor diameter M16 showed that the pull-out strength increased by 1.42 times for normal-strength concrete and about 1.33 times for high-strength concrete. This research proposes a modified equation that reflects changes in the effective embedded depth and diameter. A comparison of the proposed equation with that of European Technical Approval Guideline (ETAG) showed that the correlation coefficient changed from 0.908 to 0.962, and the coefficient of variation changed from 18.9 to 10.4%, meaning that the proposed equation reflected the actual experimental values more accurately.

목차

Abstract
1. Introduction
2. Mechanical Anchor Performance
3. Geometric Suggestions to Improve Anchor Performance
4. Performance Evaluation of the Improved Post‑installed Anchor
5. Review and Suggestions for the Design Equation for an Extreme Pull‑Out Load
6. Conclusion
References

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