Recent Submissions

  • Reliability Assessment of Concrete-Filled RHS Beam-Column Design Provisions (Preprint) 

    Published Version: Rahbarimanesh, F., Tousignant, K. (2023). Reliability Assessment of Concrete-Filled RHS Beam-Column Design Provisions. In: Gupta, R., et al. Proceedings of the Canadian Society of Civil Engineering Annual Conference 2022. CSCE 2022. Lecture Notes in Civil Engineering, vol 348. Springer, Cham. https://doi.org/10.1007/978-3-031-34159-5_3
    Revisions were recently proposed to the way in which concrete-filled hollow structural section members are handled in CSA S16. These revisions were based on previous research, comparisons to experiments, and an approximate ...
  • Design of Single-Sided Fillet Welds under Transverse Load (Postprint) 

    Published Version: Thomas, J. H.* & Tousignant, K. (2022). Design of single-sided fillet welds under transverse load. Journal of Structural Engineering, American Society of Civil Engineers 148(9): 04022118-1 – 04022118-16.
    In North American steel design specifications, a directional strength-enhancement factor is used to increase the predicted strength of fillet welds subjected to transverse loading (i.e., loading at 90° to the weld axis). ...
  • Experimental tests on fillet and PJP welds in CHS moment T-connections (Postprint) 

    Published Version: Yang, Z.* & Tousignant, K. (2022). Experimental tests on fillet and PJP welds in CHS moment T-connections. Journal of Constructional Steel Research 196: 107405-1 – 107405-13.
    An experimental program was developed at Dalhousie University to test various unreinforced circular hollow section (CHS)-to-CHS 90° T-connections subjected to branch in-plane bending moment with the objective of determining ...
  • Chord-end RHS-to-RHS and CHS-to-CHS X-connections with rigid cap plates: Stress concentration factors (Postprint) 

    Published Version: Sun, M., Tousignant, K., Nejad, A. Z. & Daneshvar, S. (2021). Chord-end RHS-to-RHS and CHS-to-CHS X-connections with rigid cap plates: Stress concentration factors. Journal of Constructional Steel Research 179: 106567-1 – 106567-18.
    For rectangular hollow section (RHS)-to-RHS and circular hollow section (CHS)-to-CHS connections situated near a truss/girder end, reinforcement using a chord-end cap plate is common; however, for fatigue design, formulae ...
  • Circular hollow section X-connections near an open chord end: stress concentration factors (Postprint) 

    Published Version: Nejad, A. Z., Sun, M. & Tousignant, K. (2021). Circular hollow section X-connections near an open chord end: Stress concentration factors. Journal of Constructional Steel Research 177: 106454-1 – 106454-14.
    This paper presents a numerical finite element (FE) investigation to determine stress concentration factors (SCFs) for circular hollow section (CHS)-to-CHS X-connections near an open chord end. Previous large-scale experiments ...
  • Stress concentration factors for RHS-to-RHS X-connections near an open chord end 

    Daneshvar, S., Sun, M. & Tousignant, K. (2020). Stress concentration factors for RHS-to-RHS X-connections near an open chord end. Journal of Constructional Steel Research 175: 106352.
    This paper presents an experimental and finite-element (FE) study to determine stress concentration factors (SCFs) for directly welded rectangular hollow section (RHS)-to-RHS axially loaded X-connections near an open chord ...
  • Design of fillet welds in RHS-to-RHS moment T-connections under branch in-plane bending 

    Yaghoubshahi, M., Sun, M. & Tousignant, K. (2019). Design of fillet welds in RHS-to-RHS moment T-connections under branch in-plane bending. Journal of Constructional Steel Research 159: 122-133.
    Non-linear finite element (FE) models were developed to assess the AISC 360-16 Chapter K design approach for fillet welds in rectangular hollow section (RHS) moment T-connections under branch in-plane bending. The FE models ...
  • Fillet weld effective lengths in CHS X-connections. I: Experimentation 

    Tousignant, K. & Packer, J.A. (2017). Fillet weld effective lengths in CHS X-connections. I: Experimentation. Journal of Constructional Steel Research 138: 420-431.
    For the first time, an experimental test program was conducted to assess the strength of fillet welds in circular hollow section (CHS) connections. Six large-scale, fillet-welded CHS-to-CHS X-connections were designed with ...
  • Fillet weld effective lengths in CHS X-connections. II: Finite element modelling, parametric study and design 

    Tousignant, K. & Packer, J.A. (2017). Fillet weld effective lengths in CHS X-connections. II: Finite element modelling, parametric study and design. Journal of Constructional Steel Research 141: 77-90.
    Finite element (FE) modelling was performed to extend the results of a recently completed experimental test program to evaluate the static strength of fillet welds in X-connections between circular hollow sections (CHS). ...
  • Investigation of weld effective length rules for CHS X-connections 

    Tousignant, K. & Packer, J. A. (2017). Investigation of weld effective length rules for CHS X-connections. In Heidarpour, A. & Zhao, X. (Eds.), Tubular Structures XVI; Proc. Intern. Symp., Melbourne, Australia, 4-6 December 2017. Rotterdam: Balkema, 657-664.
    A laboratory-based test program was conducted to assess the performance of fillet welds in X-connections between circular hollow sections (CHS). Six full-scale, fillet-welded CHS-to-CHS X-connections were designed to be ...
  • Fillet welds around circular hollow sections 

    Tousignant, K. & Packer, J. A. (2019). Fillet welds around circular hollow sections. Welding in the World 63:421-433. https://doi.org/10.1007/s40194-018-00679-9
    A research program was conducted to evaluate the safety of design rules for fillet welds around the perimeter of steel circular hollow sections (CHS) in the current American Institute of Steel Construction (AISC) steel ...
  • Experimental Evaluation of Design Procedures for Fillet Welds to Hollow Structural Sections 

    Packer, J. A., Sun, M. & Tousignant, K. (2016). Experimental evaluation of design procedures for fillet welds to hollow structural sections. Journal of Structural Engineering, American Society of Civil Engineers 142(5): 04016007-1 – 04016007-12. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001467
    This paper discusses contemporary design procedures for fillet welds to Hollow Structural Sections (HSS) in several prominent design codes. The structural reliability associated with the "directional strength enhancement ...
  • Numerical Investigation of Fillet Welds in HSS-to-Rigid End-Plate Connections 

    Tousignant, K. & Packer, J. A. (2017). Numerical investigation of fillet welds in HSS-to-rigid end-plate connections, Journal of Structural Engineering, American Society of Civil Engineers 143(12): 04017165-1 – 04017165-16. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001889
    This paper presents a finite element (FE) investigation on the behavior of fillet-welded hollow structural section (HSS) rigid end-plate connections, wherein the entire weld length is effective. The FE models are validated ...