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Static strength of axially loaded tubular K-joints II: ultimate Strength

Static strength of axially loaded tubular K-joints II: ultimate Strength
Static strength of axially loaded tubular K-joints II: ultimate Strength
The ultimate capacity results from an extensive finite-element study of balanced axially loaded K-joints (reported in a companion paper) are reviewed and compared with predictions from available design guidance. Both overlap and small-gap K-joints are included. Overlapping the braces was shown to have a beneficial effect on joint strength for the joints with relatively thick brace walls, where the strength was found to be up to four and a half times that of the corresponding gap joint. The performance of the available onshore and offshore design guidance for predicting joint capacities was poor, particularly for the overlap joints. The interactive effects of varying geometric parameters are not fully accounted for, generally resulting in high levels of conservatism. A new strength equation developed for the overlap joints has been shown to predict the capacities of the numerical joints studied, as well as those from a test database, with a high degree of accuracy.
0733-9445
202-210
Lee, M.
d04961f5-36fc-4d03-af4a-cb3047be7de1
Dexter, E.M.
6f71a407-8edc-49fa-b94f-0923109e8812
Lee, M.
d04961f5-36fc-4d03-af4a-cb3047be7de1
Dexter, E.M.
6f71a407-8edc-49fa-b94f-0923109e8812

Lee, M. and Dexter, E.M. (1999) Static strength of axially loaded tubular K-joints II: ultimate Strength. Journal of Structural Engineering, 125 (2), 202-210. (doi:10.1061/(ASCE)0733-9445(1999)125:2(202)).

Record type: Article

Abstract

The ultimate capacity results from an extensive finite-element study of balanced axially loaded K-joints (reported in a companion paper) are reviewed and compared with predictions from available design guidance. Both overlap and small-gap K-joints are included. Overlapping the braces was shown to have a beneficial effect on joint strength for the joints with relatively thick brace walls, where the strength was found to be up to four and a half times that of the corresponding gap joint. The performance of the available onshore and offshore design guidance for predicting joint capacities was poor, particularly for the overlap joints. The interactive effects of varying geometric parameters are not fully accounted for, generally resulting in high levels of conservatism. A new strength equation developed for the overlap joints has been shown to predict the capacities of the numerical joints studied, as well as those from a test database, with a high degree of accuracy.

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Published date: February 1999

Identifiers

Local EPrints ID: 74530
URI: http://eprints.soton.ac.uk/id/eprint/74530
ISSN: 0733-9445
PURE UUID: 6feaad39-87ac-40c3-98cf-623cd6d41947

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Date deposited: 11 Mar 2010
Last modified: 19 Jul 2019 23:39

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