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DOIONLINE NO - IJMPE-IRAJ-DOIONLINE-779

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International Journal of Mechanical and Production Engineering (IJMPE)-IJMPE
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Volume Issue
Issue
Volume-2,Issue-6  ( Jun, 2014 )
Paper Title
A Parametric Study On Efficiency Of Tubular Joint Cans In Offshore Structures
Author Name
Aswindas. M, Venugopal. S.V, I. Yamini Sreevalli
Affilition
M.TECH Student, Structural Engineering, SMBS, VIT University, Chennai, Tamil Nadu, India Director & Principal Faculty, Case Centre for Training & Skill Development, Kollam, Kerala, India Assoc. Professor, Structural Engineering, SMBS, VIT University, Chennai, Tamil Nadu, India
Pages
21-25
Abstract
Abstract- In offshore platforms, the tubular joints are widely used due to the structural advantages it possess. It should be noted that the efficiency of a tubular joint can is one of the deciding factor in extending the life span of the offshore platform. So for a designer, the proper selection of geometry for a joint holds a key priority. But the designers usually encounter a challenge in selecting the proper geometry due to the restriction in the available standard sizes in the market. In this study, API-RP-2A-WSD (American Petroleum Institute Recommended Practice Working Stress Design) for simple joints are critically reviewed and a parametric study is undertaken to study the load carrying capacity of tubular joint by varying diameter ratio and wall thickness ratio. A fixed jacket offshore platform model is analysed to get the internal force distribution of a simple tubular joint and in conjunction with the parametric study, the allowable load variation vis-a-vis the variation in internal loads are considered to realize the efficiency of tubular joint. A visual basic program is developed to determine the allowable axial stress and allowable in-plane bending and out-of-plane bending stresses in the simple tubular joint by incorporating recommendations from API-RP-2A-WSD for different parameters. Graphs are generated and depicts the behaviour of tubular joints.
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