Earticle

초록

영어

This study experimentally evaluated the clamping force loosening performance of a newly developed Torque-Shear Nut (TSN) under transverse cyclic loading, comparing its performance to conventional high-strength bolts (HT) and torque-shear bolts (TSB). Customized load cells recorded real-time axial forces during testing, considering two bolt sizes (M16 and M20) and four displacement amplitudes (0.5, 1.0, 1.5, and 2.0 mm) as main variables. All bolt types showed a rapid initial loss followed by stabilization; At small displacements (0.5–1.0 mm), more than 95% of the initial preload was maintained. At larger displacements (1.5–2.0 mm)residual preload reduced to about 75–80%. In contrast, Overall, the TSN demonstrated performance equivalent to or slightly superior to that of HT and TSB, confirming its practical applicability as an alternative fastening system that provides stable and reliable clamping force retention in steel structural connections subjected to cyclic transverse loading.

목차

Abstract
1. 서론
1.1 연구배경 및 목적
2. 데이터 처리
2.1 데이터 처리 과정
2.2 잔류 축력 비율
3. 실험계획
3.1 실험체
3.2 로드셀
3.3 실험 방법
4. 실험결과 분석
4.1 잔류 축력 비율 분포
4.2 M16 볼트의 잔류 축력 감소
4.3 M20 볼트의 잔류 축력 감소
REFERENCES

저자

• 김유빈 [ Kim, Yubin | 경북대학교 건설환경에너지공학부 석사과정 ]
• 김주석 [ Kim, Juseok | 경북대학교 건설환경에너지공학부 박사과정 ]
• 최민우 [ Choi, Min-woo | 경북대학교 건설환경에너지공학부 박사과정 ]
• 최열 [ Choi, Yeol | 경북대학교 건축학부 교수 ] Corresponding Author

참고문헌