Axial compressive strength of CHS T-joints reinforced with external stiffening rings

L. Zhu, Y. Wei, K. Yang, Y. Bai, H. L. Sun

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

1 Citation (Scopus)


This paper investigates the axial compressive loading capacity of CHS T-joints reinforced by external stiffening rings. Joint specimens were experimentally investigated under axial compressive loading on bracing. FE models were established to simulate the mechanical responses of the T-joints and further verified by experimental results. A numerical parametric analysis involving 160 FE joint models was conducted. Four parameter scenarios (ratio of brace to chord diameter β, ratio of chord diameter to twice the chord wall thickness γ, ratio of external stiffening ring width to chord radius β r , ratio of ring wall thickness to chord wall thickness τ r ) were taken into account and their effects on the joint’s mechanical responses were investigated. The failure modes were classified as brace buckling, joint plastification, and chord bending failure. Finally, a formulation to calculate the ultimate joint strength was established and examined by numerical results and theoretical derivation.

Original languageEnglish
Title of host publicationTubular Structures XVI - Proceedings of the 16th International Symposium on Tubular Structures, ISTS 2017
EditorsAmin Heidarpour, Xiao-Ling Zhao
PublisherCRC Press
Number of pages9
ISBN (Print)9780815381341
Publication statusPublished - 1 Jan 2018
EventInternational Symposium on Tubular Structures 2017 - Novotel Hotel, Melbourne, Australia
Duration: 4 Dec 20176 Dec 2017
Conference number: 16th

Publication series

NameTubular Structures XVI - Proceedings of the 16th International Symposium on Tubular Structures, ISTS 2017


ConferenceInternational Symposium on Tubular Structures 2017
Abbreviated titleISTS 2017
Internet address

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