Minimum Thickness of Welding Patches to Recover Structural Performance of Steel Pipe Piles under Compression

Xiao Chen; Yoshito Itoh

doi:10.4028/www.scientific.net/AMR.368-373.1681

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 368-373Minimum Thickness of Welding Patches to Recover...

Minimum Thickness of Welding Patches to Recover Structural Performance of Steel Pipe Piles under Compression

Abstract:

This paper presents an analytical study on a minimum patch thickness necessary to fully recover structural performance of corrosion-damaged pipe piles under axial compressive loads using welding repair. Load transfer mechanism, the repaired stiffness and strength of pipe piles are examined. An accurate calculation of load share ratio of patch plates considering weld stiffness is derived, and the results are compared with experimental results and finite element analysis results. The minimum thickness of patch plates to fully recover the stiffness and the design strength of the corrosion-damaged piles to their intact state considering the existing loads is proposed.

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Periodical:

Advanced Materials Research (Volumes 368-373)

Pages:

1681-1685

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.368-373.1681

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Online since:

October 2011

Authors:

Xiao Chen, Yoshito Itoh

Keywords:

Compression, Load Share Ratio, Steel Pipe Pile, Welding Repair

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References

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[3] X. Chen, Y. Kitane, and Y. Itoh: Evaluation of repair design on corrosion-damaged steel pipe piles using welded patch plates under compression, Journal of Structural Engineering, JSCE, Vol. 57A. (2011), pp.756-768.

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[4] Y. Kitane, Y. Itoh, N. Watanabe, and K. Matsuoka: Compressive and flexural tests of thickness-reduced steel pipes repaired with patch plates using underwater wet welding, Journal of Structural Engineering, JSCE, Vol. 55A, (2009), pp.889-902 (in Japanese).

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