Fatigue Test Research on Improved T-Stub Specimen of Welded Beam-to-Column Connections


The current T-stub specimen of welded beam-to-column connections in steel structures was improved by adding clamping ends at both sides for convenience of fatigue tests. Uniaxial fatigue tests of the T-stub specimens were conducted. The fatigue properties and failure characteristics of the T-stub specimens were summarized and compared with those of two other standard welded joint configurations. Based on finite element analysis, various fatigue assessment approaches were used to predict the fatigue life of the specimens and the assessment results were compared with the test results. Previously developed unified design curves suitable to high-cycle and low-cycle fatigue assessment of standard welded joint configurations were extended to welded joints in beam-to-column connections. The results show that accurate experimental results can be obtained using the improved T-stub specimens with clamping ends; Under cyclic loading, the welded joint in beam-to-column connections has satisfying energy dissipation capacity, but the fatigue strength is relatively poor; the unified design curves are well applicable to the fatigue life assessment and design of welded beam-to-column connections in steel structures.

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  1. 1.

    A.F. Hobbacher, Recommendations for Fatigue Design of Welded Joints and Components. (Springer, New York, 2016)

    Google Scholar 

  2. 2.

    G. Ballio, L. Calado, C.A. Castiglioni, Low cycle fatigue behaviour of structural steel members and connections. Fatigue Fract. Eng. Mater. Struct. 20(8), 1129–1146 (1997)

    CAS  Article  Google Scholar 

  3. 3.

    E.P. Popov, T.S. Yang, S.P. Chang, Design of steel MRF connections before and after 1994 Northridge earthquake1. Eng. Struct. 20(12), 1030–1038 (1998)

    Article  Google Scholar 

  4. 4.

    Fang Z, Li A, Ding Y, et al. (2018) Wind-induced fatigue assessment of welded connections in steel tall buildings using the theory of critical distances. Eur. J. Environ. Civil Eng. 1-26.

  5. 5.

    Fisher J W, Dexter R J, Kaufmann E J (1997) Fracture mechanics of welded structural steel connections. Report No. SAC, pp 95-09.

  6. 6.

    Kaufman EJ, Fisher J (1995) A study of the effects of material and welding factors on moment frame weld joint performance using a small scale tension specimen. SAC Joint Venture 95-08.

  7. 7.

    X.Y. Liu, Y.Q. Wang, J. Xiong et al., Investigation on the weld damage behavior of steel beam-to-column connection. Int. J. Steel Struct. 17(1), 273–289 (2017)

    Article  Google Scholar 

  8. 8.

    Shi Y, Xiong J, Wang Y (2012) Study on damage behavior of weld of beam-to-column connection in steel frame I: experiment. Jianzhu Jiegou Xuebao (J. Build. Struct.) 33(3): 48-55

  9. 9.

    Z. Fang, A. Li, S. Shen et al., Low-cycle fatigue test and life assessment of carbon structural steel GB Q235B butt joints and cruciform joints. Adv. Struct. Eng. 22(3), 581–596 (2019)

    Article  Google Scholar 

  10. 10.

    J. Ferreira, C.A. Castiglioni, L. Calado et al., Low cycle fatigue strength assessment of cruciform welded joints. J. Const. Steel Res. 47(3), 223–244 (1998)

    Article  Google Scholar 

Download references


This research was supported by the National Natural Science Foundation of China (No. 52008202, No. 51978154 and No. 51438002), the Scientific Research Foundation of Nanjing Institute of Technology (YKJ201927), the Distinguished Young Scientists of Jiangsu Province (No. BK20190013) and the Natural Science Foundation of Jiangsu Province in China (No. BK20191016).

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Correspondence to Youliang Ding.

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Fang, Z., Li, A. & Ding, Y. Fatigue Test Research on Improved T-Stub Specimen of Welded Beam-to-Column Connections. J Fail. Anal. and Preven. (2021). https://doi.org/10.1007/s11668-021-01118-6

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  • Improved T-stub specimen
  • Beam-to-column connection
  • Axial low-cycle fatigue test
  • Fatigue assessment