The effect of internal ring stiffeners has been studied theoretically and experimentally for the welded tubular T-joints occurring in conventional jacket type offshore structures. Four welded tubular joint models of T shape, with different diameter ratios have been tested under axial loading in the branch. The analytical results have been obtained by finite element technique. The results indicate a significant reduction in the stress concentation factor and a fairly uniform transfer of load from branch to the chord. A simplified analysis of stiffener rings have been proposed. The stress results of joints strengthened by ring stiffeners and joint can are compared.
Stresses in stiffened tubular T-joint of an offshore structure
Spannungen in versteiften T-Rohrstuecken von meerestechnischen Anlagen
1982
8 Seiten, 12 Bilder, 7 Tabellen, 18 Quellen
Conference paper
English
Corrosion fatigue of stiffened offshore steel tubular joints
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