Behaviour of Internally Ring Stiffened Joints of Offshore Platforms
IR@SERC: CSIR-Structural Engineering Research Centre, Chennai
View Archive Info| Field | Value | |
| Title |
Behaviour of Internally Ring Stiffened Joints of Offshore Platforms
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| Creator |
Thandavamoorthy, T.S.
Madhava Rao, A.G. Santhakumar, A.R. |
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| Subject |
joint
offshore platform |
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| Description |
As part of a larger experimental program on assessment and rehabilitation of damaged, internally ring-stiffened, steel tubular joints of offshore platforms, experimental investigation was carried out on undamaged, internally ring-stiffened tubular joints to study their behavior, determine their strength, and establish a benchmark. The paper presents, in detail, the experimental investigation carried out on tubular joints that are stiffened internally with three annular rings under axial brace compression loadings. The chord and brace diameters of the tested T and Y joints were 324 and 219 mm and their thicknesses were 12 and 8 mm, respectively. The tested joints are approximately a quarter of the size of the largest joints in the platforms built in a shallow water depth of 80 m in the Bombay High field in the Arabian Sea. Bending of the chord as a whole was observed to be the predominant mode of deformation of the internally ring-stiffened joints, in contrast to the ovaling and punching shear of the unstiffened joints. Strength of the internally ring-stiffened joints was found to be almost twice that of the unstiffened joints of the same dimensions.
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| Date |
2009
2009 1999 |
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| Type |
Article
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| Identifier |
Journal of Structural Engineering, Vol.125, No. 11, November 1999, pp.1348-1352
http://hdl.handle.net/123456789/89 |
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| Language |
en
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| Rights |
It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice that the rights are violated then the item would be withdrawn.
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| Publisher |
American Society of Civil Engineers (ASCE)
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