Structural behavior of right-angle two-planar tubular TT-joints subjected to axial loadings at fire-induced elevated temperatures

Azari-Dodaran, Neda and Ahmadi, Hamid ORCID: https://orcid.org/0000-0002-6192-6275 (2019) Structural behavior of right-angle two-planar tubular TT-joints subjected to axial loadings at fire-induced elevated temperatures. Fire Safety Journal, 108:102849. pp. 1-15. ISSN 0379-7112


Abstract

This paper aims to investigate the structural behavior of two-planar tubular TT-joints subjected to axial loading at fire induced elevated temperatures. A total number of 270 FE analyses were performed to investigate the effect of temperatures and dimensionless geometrical parameters (β, γ, and τ) parameters on the ultimate strength and initial stiffness. The joints were analyzed under axially compressive and tensile loads at five different temperatures (20 °C, 200 °C, 400 °C, 550 °C, and 700 °C). Up to now, there has not been any design equation available for determining the ultimate strength of two-planar tubular TT-joints at elevated temperature. Results of the parametric study were used to develop a set of design formulas, through nonlinear regression analyses, to calculate the ultimate strength of two-planar tubular TT-joints subjected to axial loading at elevated temperatures.


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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: 27 Jul 2022 04:25
Last Modified: 27 Jul 2022 05:53
Uncontrolled Keywords: Two-planar tubular TT-Joint, Fire condition, Axial loads, Static strength, Parametric equation
Fields of Research (2020): 40 ENGINEERING > 4005 Civil engineering > 400510 Structural engineering
40 ENGINEERING > 4005 Civil engineering > 400507 Fire safety engineering
Socio-Economic Objectives (2020): 17 ENERGY > 1702 Energy exploration > 170203 Oil and gas exploration
Identification Number or DOI: https://doi.org/10.1016/j.firesaf.2019.102849
URI: http://eprints.usq.edu.au/id/eprint/50271

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