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논문 기본 정보

자료유형
학술저널
저자정보
P.S. Prashob (NMIMS University) A.P. Shashikala (National Institute of Technolgy Calicut) T.P. Somasundaran (Hindustan Institute of Technology and Science)
저널정보
국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.32 No.3
발행연도
2019.1
수록면
361 - 372 (12page)

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초록· 키워드

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Tubular joints are used in the construction of offshore structures and other land-based structures because of its ease of fabrication. These joints are subjected to different environmental loadings in their lifetime. At the time of fabrication or modification of an existing offshore platform, tubular joints are usually strengthened to withstand the environmental loads. Currently, various strengthening techniques such as ring stiffeners, gusset plates are employed to strengthen new and existing tubular joints. Due to some limitations with the present practices, some new techniques need to be addressed. Many researchers used Fibre Reinforced Polymer (FRP) to strengthen tubular joints. Some of the studies were focused on axial compression of Glass Fibre Reinforced Polymer (GFRP) strengthened tubular joints and found that it was an efficient technique. Earlier, the authors had performed studies on Carbon Fibre Reinforced Polymer (CFRP) strengthened tubular joint subjected to axial compression. The study steered to the conclusion that FRP composites is an alternative strengthening technique for tubular joints. In this work, the study was focused on axial compression of Y-joint and in plane and out of plane bending of T-joints. Experimental investigations were performed on these joints, fabricated from ASTM A106 Gr. B steel. Two sets of joints were fabricated for testing, one is a reference joint and the other is a joint strengthened with CFRP. After performing the set of experiments, test results were then compared with the numerical solution in ANSYS Parametric Design Language (APDL). It was observed that the joints strengthened with CFRP were having improved strength, lesser surface displacement and ovalization when compared to the reference joint.
#tubular joints #in-plane bending #out-of-plane bending #CFRP #Ansys #experimental and numerical investigation

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참고문헌 (18)

참고문헌 신청
Aguilera, J. / 2013 / Retrofitting tubular steel T-joints subjected to axial compression in chord and brace members using bonded FRP plates or through-wall steel bolts / Eng. Struct 48:602~610 Crossref Md Iftekharul Alam / 2015 / Numerical studies on CFRP strengthened steel columns under transverse impact / Composite Structures 120:428~441 Crossref Ahmed W. Al-Zand / 2018 / The influence of strengthening the hollow steel tube and CFST beams using U-shaped CFRP wrapping scheme / Structural Engineering and Mechanics, An Int＇l Journal 66(2):229~235 dbpia API / 2007 / Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platforms Working Stress Design google schola 2015 / ASTM A106, Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service google schola

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