Fatigue Life Analysis of Welded Joints in Spigot-and-Socket Connections for Arch-Beam Structures
DOI:
https://doi.org/10.6919/ICJE.202603_12(3).0006Keywords:
Numerical Simulation; Weld Fatigue; Nominal Stress; Hot-Spot Stress.Abstract
Using finite element numerical simulation, the influence of wind load on the fatigue life of welded joints in spigot-and-socket connections of arch-beam structures was investigated. Two methods were employed: the nominal stress method specified in the Chinese steel structure design standard GB 50017-2017, and the hot-spot stress method based on extrapolation as prescribed in the IIW (International Institute of Welding) documents XIII-1539-96/XV-845-96. The results indicate that the fatigue life predicted by the hot-spot stress method is longer than that obtained from the nominal stress method. Consequently, fatigue analysis based on the nominal stress method yields more conservative results. However, compared with the nominal stress approach, the hot-spot stress method demonstrates better integration with numerical simulation.
Downloads
References
[1] Mashiri F R , Zhao X L .Fatigue tests and design of welded thin-walled RHS–RHS and RHS–angle cross-beam connections under cyclic bending[J].Thin-Walled Structures, 2010, 48(2):159-168.
[2] Stroetmann R, Kastner T, Rust B S J. Welded connections at high-strength steel hollow section joints[J]. Steel construction: Design and research, 2022, 15(May Spec.):10-21.
[3] Zhang C Y, Lu Y. Fatigue performance analysis of H-section steel cantilever masts under wind loading[J]. Railway Standard Design, 2016, 60(6): 4.
[4] Ministry of Housing and Urban-Rural Development of the People's Republic of China. Standard for design of steel structures: GB 50017-2017[S]. Beijing: China Architecture & Building Press, 2018.
[5] IIW Joint Working Group XIII-XV. Recommendations for Fatigue Design of Welded Joints and Components, IIW document: IIW-1823-07[S]. 2008.
[6] Muzaffer S, Chang K H, Wang Z M, et al. Comparison of stiffener effect on fatigue crack in KT-type pipe joint by FEA. Weld World, 2022(66): 783.
[7] Huo L X. Fracture behavior and assessment of welded structures. Beijing: China Machine Press, 2000.
[8] EN 1993-1-9:2005/AC:2009, Eurocode 3: Design of steel structures - Part 1-9: Fatigue[S].
[9] BS ISO 14347:2008, Fatigue. Design procedure for welded hollow-section joints. Recommendations[S].
Downloads
Published
Issue
Section
License
Copyright (c) 2026 International Core Journal of Engineering
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
How to Cite
