지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.16 No.2
- 발행연도
- 2015.1
- 수록면
- 367 - 382 (16page)
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초록· 키워드
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This paper aims to conduct the reliability-based assessment of the welded joint in the orthotropic steel bridge deck by use of a mesh-insensitive structural stress (MISS) method, which is an effective numerical procedure to determine the reliable stress distribution adjacent to the weld toe. Both the solid element model and the shell element model are first established to investigate the sensitivity of the element size and the element type in calculating the structural stress under different loading scenarios. In order to achieve realistic condition assessment of the welded joint, the probabilistic approach based on the structural reliability theory is adopted to derive the reliability index and the failure probability by taking into account the uncertainties inherent in the material properties and load conditions. The limit state function is formulated in terms of the structural resistance of the material and the load effect which is described by the structural stress obtained by the MISS method. The reliability index is computed by use of the first-order reliability method (FORM), and compared with a target reliability index to facilitate the safety assessment. The results achieved from this study reveal that the calculation of the structural stress using the MISS method is insensitive to the element size and the element type, and the obtained structural stress results serve as a reliable basis for structural reliability analysis.
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참고문헌 (23)
참고문헌 신청
AASHTO / 2012 / AASHTO LRFD Bridge Design Specifications / American Association of State Highway and Transportation Officials
Aygul, M. / 2012 / Modelling and fatigue life assessment of orthotropic bridge deck details using FEM / Int. J. Fatigue 40:129~142
Braml, T. / 2013 / Assessment of existing structures using probabilistic analysis methods in combination with nondestructive testing methods / Struct. Eng. Int 23(4):376~385
T. H. T. Chan / 2005 / Hot spot stress approach for Tsing Ma Bridge fatigue evaluation under traffic using finite element method / Structural Engineering and Mechanics, An Int＇l Journal 19(3):261~279
Dong, P. / 2001 / A structural stress definition and numerical implementation for fatigue analysis of welded joints / Int. J. Fatigue 23(10):865~876
Aygul, M. / 2012 / Modelling and fatigue life assessment of orthotropic bridge deck details using FEM / Int. J. Fatigue 40:129~142
Braml, T. / 2013 / Assessment of existing structures using probabilistic analysis methods in combination with nondestructive testing methods / Struct. Eng. Int 23(4):376~385
T. H. T. Chan / 2005 / Hot spot stress approach for Tsing Ma Bridge fatigue evaluation under traffic using finite element method / Structural Engineering and Mechanics, An Int＇l Journal 19(3):261~279
Dong, P. / 2001 / A structural stress definition and numerical implementation for fatigue analysis of welded joints / Int. J. Fatigue 23(10):865~876
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