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RESEARCH PAPERS: Offshore Mechanics/Ocean Engineering/Arctic Engineering

Stresses in Stiffened Tubular T Joint of an Offshore Structure

[+] Author and Article Information
M. R. Shiyekar, M. Kalani, R. M. Belkune

Structures Division, Civil Engineering Department, Indian Institute of Technology, Bombay, India

J. Energy Resour. Technol 105(2), 177-183 (Jun 01, 1983) (7 pages) doi:10.1115/1.3230899 History: Received November 20, 1981; Revised October 08, 1982; Online October 22, 2009

Abstract

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 concentration 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.

Copyright © 1983 by ASME
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