SCFs in multi-planar tubular TT-joints of offshore jacket structures subjected to out-of plane bending (OPB) loads

Ahmadi, Hamid ORCID: and Imani, Hossein (2022) SCFs in multi-planar tubular TT-joints of offshore jacket structures subjected to out-of plane bending (OPB) loads. Journal of Civil and Environmental Engineering.


Investigating the effect of loaded out-of-plane braces on the values of the stress concentration factor (SCF) in tubular joints commonly found in offshore structures has been the objective of numerous research works. However, due to the diversity of joint types and loading conditions, a number of quite important cases still exist that have not been studied thoroughly. Among them are two-planar TT-joints subjected to out-of-plane bending (OPB) moment loading. In the present research, data extracted from the stress analysis of 243 finite element (FE) models, verified against available experimental data, was used to study the effects of geometrical parameters on the chord-side SCFs in two-planar tubular TT-joints subjected to two types of OPB moment loading. Parametric FE study was followed by a set of nonlinear regression analyses to develop four new SCF parametric formulae for OPB-loaded two-planar TT-joints. Reliability of proposed equations was checked against the UK Department of Energy (DoE) criteria.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 28 Jul 2022 05:33
Last Modified: 30 Sep 2022 02:00
Uncontrolled Keywords: Out-of-plane bending (OPB), Stress concentration factor (SCF), Two-planar tubular TT-joint, Fatigue, Offshore jacket structure
Fields of Research (2020): 40 ENGINEERING > 4015 Maritime engineering > 401504 Ship and platform structures (incl. maritime hydrodynamics)
40 ENGINEERING > 4005 Civil engineering > 400510 Structural engineering
Socio-Economic Objectives (2020): 17 ENERGY > 1702 Energy exploration > 170203 Oil and gas exploration
Identification Number or DOI: doi:10.22034/JCEE.2022.50514.2122

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