Evaluation of repair design on corrosion-damaged steel pipe piles using welded patch plates under compression

Xiao Chen, Yasuo Kitane, Yoshito Itoh

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

This paper presents a numerical study on the compressive behavior of steel pipe piles repaired with patch plates welded underwater. In this study, a uniform thickness reduction is assumed for a portion of a pipe pile to simulate corrosion damage, and a special attention is paid to modeling the mechanical behavior of fillet welds in finite element analysis based on available experimental data. Effectiveness of different welding patterns on pipe piles with various size parameters is examined in terms of stiffness, load-carrying capacity, and load share ratio of patch plates of repaired piles. Effectiveness of transverse welds in the repair is also examined, and equations to calculate a load share ratio of patch plates, the minimum thickness of patch plates, and the maximum number of slits are proposed for the repair design.
Original languageEnglish
JournalJournal of Structural Engineering
Volume57A
ISSN0733-9445
Publication statusPublished - 2011
Externally publishedYes

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