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TECHNICAL PAPERS

Investigations on Internally Ring-Stiffened Joints of Offshore Platforms

[+] Author and Article Information
T. S. Thandavamoorthy

Structural Engineering Research Centre, Madras, CSIR Campus, Tharamani, Chennai 600 113, Tamil Nadu, India

J. Offshore Mech. Arct. Eng 122(4), 233-242 (May 22, 2000) (10 pages) doi:10.1115/1.1290401 History: Received May 28, 1999; Revised May 22, 2000
Copyright © 2000 by ASME
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References

Figures

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Typical undamaged stiffened T -joint
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Typical undamaged stiffened Y-joint
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Typical setup for axial brace compression loading
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Load-midspan deflection curve for undamaged T -joint UDT 1
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Load versus deflection at third point for undamaged T-joint UDT 1
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Load-midspan deflection curve for undamaged Y-joint UDY 1
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Load versus deflection at third point for undamaged Y-joint UDY 1
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Typical load-midspan deflection curve for unstiffened T -joint
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Typical load versus ovaling deformation of unstiffened T -joint
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Comparison of midspan deflections of unstiffened and stiffened joints
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Proposed analytical model for undamaged stiffened joint
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Strain and stress distribution of section at ultimate load
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FE model of undamaged stiffened joints—(a) T -joint; (b) Y -joint
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Superposition of deflections of stiffened T and Y-joints
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Bending of internally ring-stiffened joint
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Punching shear failure of unstiffened joint
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Superposition of midspan deflection and ovaling deformation

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