This paper describes the calibration and validation of a finite-element modelling procedure that was used to conduct an extensive parametric study on the strength of multi-planar tubular joints. Various factors that influenced results were investigated. The modelling procedure was calibrated using the International Organization for Standards (ISO) design equations and the underlying test database for compression and tension loaded simple T and Y joints, and was further validated with balanced loaded K joints. Overall, the proposed procedure has been shown to be adequate in predicting the strength of the basic joint types, thereby giving confidence in its use for more complex joints.
Issue Section:
Technical Papers
1.
American Petroleum Institute, 1993, “Recommended Practice Planning, Designing and Constructing Fixed Offshore Platforms,” 20th edition, API RP2A, Section E, Connections.
2.
ISO, 1999, “Petroleum and Natural Gas Industries—Offshore Structures—Part 2: Fixed Steel Structures,” BS EN ISO 13819-2.
3.
BOMEL, 1996, “Design and reassessment of tubular joints for offshore structures,” Chapter 3: Static Strength, BOMEL report C6060R07.21.
4.
Lalani, M., 1990, “Codification of Tubular Joints Design Practice—A plea for rationalization,” Proceedings of the 9th International Conference on Offshore Mechanics and Arctic Engineering, Houston, Texas, pp. 667–675.
5.
American Welding Society, 1990, “ANSI/AWS D1.1-90 Structural Welding Code—Steel,” 12th edition, Section 10, Tubular Structures.
6.
Marshall, P. W., 1992, “Design of Welded Tubular Connections—Basis and Use of AWS Code Provisions,” Elsevier.
7.
Wilmshurst, S. R. and Lee, M. M. K., 1995, “Static Strength of Multi-Planar KK-Joints—a Reassessment of the Database and Estimation Equation.” Proceedings of the 14th International Offshore Mechanics and Arctic Engineering Conference, Copenhagen, pp. 181–191.
8.
Lalani, M. and Bolt, H. M., 1989, “Strength of Multi-Planar Joints on Offshore Platforms,” Proceeding of International Symposium on Tubular Structures, Lappeenranta, Finland, pp. 90–102.
9.
Kurobane, Y., 1996, “Ultimate Behavior and Design of Multi-Planar Tubular Joints,” Fatigue in Offshore Structures, Ed. Rao & Dover, Oxford and IBH Publishing.
10.
Lee, M. M. K. and Dexter, E. M., 1999, “A New Capacity Equation for Axially Loaded Multi-Planar Tubular Joints in Offshore Structures,” Final Report for Joint Industry Project.
11.
Lee
, M. M. K.
, Dexter
, E. M.
, and Kirkwood
, M. G.
, 1995
, “Strength of Moment Loaded Tubular T/Y Joints in Offshore Platforms
,” The Structural Engineer
, 73
(15
), pp. 239
–246
.12.
Lee
, M. M. K.
, and Wilmshurst
, S. R.
, 1995
, “Numerical Modelling of CHS Joints with Multi-Planar Double-K Configuration
,” J. Constr. Steel Res.
, 32
, pp. 281
–301
.13.
Lee
, M. M. K.
, and Wilmshurst
, S. R.
, 1996
, “A Parametric Study of Strength of Tubular Multiplanar KK-Joints
,” J. Struct. Eng.
, 122
(8
), pp. 893
–904
.14.
Lee
, M. M. K.
, and Llewelyn-Parry
, A.
, 1999
, “Strength of Ring-Stiffened Tubular T-joints- a Parametric Numerical Study
,” J. Constr. Steel Res.
, 51
, pp. 239
–264
.15.
Dexter
, E. M.
, and Lee
, M. M. K.
, 1999
, “Static Strength of Axially Loaded Tubular K-Joints I: Behavior
,” J. Struct. Eng.
, 125
(2
), pp. 194
–201
.16.
Gazzola
, F.
, Lee
, M. M. K.
, and Dexter
, E. M.
, 2000
, “A Design Equation for Overlap K-Joints Under Axial Loading
,” J. Struct. Eng.
, 126
(7
), pp. 798
–808
.17.
ANSYS, 1992, “Users’ Manuals,” Swanson Analysis Systems Inc.
18.
van der Vegte, G. J., 1995, “The Static Strength of Uniplanar and Multi-Planar Tubular T-and X-Joints,” Ph.D. Thesis, Delft University of Technology, Netherlands.
19.
ABAQUS, 1996, “Users’ Manuals” Hibbit, Karlsson and Sorensen Inc.
20.
Yura
, J. A.
, Zettlemoyer
, N.
, and Edwards
, I. F.
, 1981
, “Ultimate Capacity of Circular Tubular Joints
,” J. Struct. Div. ASCE
, 107, ST10
, pp. 1965
–1982
.Copyright © 2004
by ASME
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