In order to clarify the significant parameters to control the deformability of high-grade induction bend pipes, finite element analyses simulating the deformation behavior subjected to an internal pressure and bending moment were carried out. Parametric studies were conducted using the finite element models with various mechanical properties and geometric imperfections. The change in the integrity of the buried pipeline due to the quality of the induction bend pipe was then quantitatively examined. Consequently, this study indicated that the mechanical properties, the dimensions and tolerance and the properties of the “transition” part should be appropriately designed in proportion to the ground deformation.
Issue Section:
Technical Papers
1.
Japan Gas Association, 2000, “Recommended Practice for Earthquake-Resistant Design of High Pressure Gas Pipeline” (in Japanese).
2.
Japan Gas Association, 2001, “Recommended Practice for Design of Gas Pipelines in Areas Subjected to Liquefaction” (in Japanese).
3.
Japan Gas Association, 1984, “Nihonkai-Chubu Earthquake and the City Gas” (in Japanese).
4.
Suzuki, N., and Nasu, M., 1989, “Nonlinear Analysis of Welded Elbows Subjected to In-Plane Bending,” Computers & Structures, Pergamon Press, Vol. 32, pp. 871–881.
5.
Yoshizaki
, K.
, Hosokawa
, N.
, Ando
, H.
, Oguchi
, N.
, Sogabe
, K.
, and Hamada
, M.
, 1999
, “Deformation Behavior of Buried Pipelines With Elbows Subjected to Large Ground Displacement
,” JSCE J. Struct. Mech. Earthquake Eng.
, 626
, pp. 173
–184
(in Japanese).6.
Hosokawa
, N.
, Yatabe
, H.
, and Watanabe
, T.
, 2000
, “In-Plane Bending Behavior of a Large Diameter Steel Elbow for Gas Pipeline
,” JSCE J. Struct. Eng.
, 46A
, pp. 17
–24
(in Japanese).7.
Yoshizaki
, K.
, O’Rourke
, T. D.
, and Hamada
, M.
, 2001
, “Large Deformation Behavior of Buried Pipelines With Low-Angle Elbows Subjected to Permanent Ground Deformation
,” JSCE J. Struct. Mech. Earthquake Eng.
, 675
, pp. 41
–52
.8.
Miki, C., Kobayashi, T., Oguchi, N., Uchida, T., Suganuma, A., and Katoh, A., 2000, “Deformation and Fracture Properties of Steel Pipe Bend With Internal Pressure Subjected to In-Plane Bending,” Proceedings of the 12th World Conference of Earthquake Engineering.
9.
Healy, J., and Billingham, J., 1995, “Metallurgical Considerations of the High Yield to Ultimate Ratio in High Strength Steels for Use in Offshore Engineering,” Proceedings of the 14th International Offshore Mechanics and Arctic Engineering Conference, 3, pp. 365–370.
10.
Kamba
, T.
, 1998
, “Stub Column Test of High-Strength CHS Steel Column With Small Diameter-to-Thickness Ratio
,” AIJ J. Struct. Eng.
, 507
, pp. 123
–129
(in Japanese).11.
Ohata
, M.
, Tanaka
, N.
, Ohmasa
, M.
, and Toyoda
, M.
, 1999
, “Control of Mechanical Properties for the Improvement of Deformability of Structural Components
,” JSSC J. Construct. Steel
, 7
, pp. 379
–386
(in Japanese).12.
Vitali, L., Bruschi, R., Mørk, K. J., Levold, E., and Verley, R., 1999, “Hotpipe Project: Capacity of Pipes Subjected to Internal Pressure, Axial Force and Bending Moment,” in Proceedings of the 9th International Offshore and Polar Engineering Conference, pp. 22–33.
13.
Dorey, A. B., Murray, D. W., and Chang, J. J., 2002, “Material Properties Effects on Critical Buckling Strains in Energy Pipelines,” Proceedings of the 4th International Pipeline Conference, IPC2002-27225.
14.
Suzuki, N., and Toyoda, M., 2002, “Critical Compressive Strain of Linepipes Related to Workhardning Parameters,” Proceedings of the 21st International Offshore Mechanics and Arctic Engineering Conference, OMAE2002-28253.
15.
Yatabe, H., Fukuda, N., Kawaguchi, S., and Masuda, T., 2001, “The Effect of the Mechanical Properties on the Deformability of the High Grade Linepipe,” Proceedings of the 20th International Offshore Mechanics and Arctic Engineering Conference, MAT-3102.
16.
Hibbit, Karlsson, and Sorensen, Inc., 2001, “ABAQUS Standard User’s Manual,” version 6.2, Vol. 1–3.
17.
Healy, J., Billingham, J., Billington, C., and Bolt, H., 1995, “Design Implications of the High Yield to Ultimate Ratio of High Strength Steels in Offshore Engineering,” Proceedings of the 14th International Offshore Mechanics and Arctic Engineering Conference, 3, pp. 271–277.
18.
Ishikawa, N., Endo, S., Kondo, J., and Takagishi, M., 2002, “Development of X80 Grade Induction Bend Pipe,” Proceedings of the 21st International Offshore Mechanics and Arctic Engineering Conference, OMAE2002-28182.
Copyright © 2004
by ASME
You do not currently have access to this content.
