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Flexural Performance of the Integrated Steel-Truss-Reinforced 3D Printed Concrete Beams (2024-09)

Experimental and Numerical Analysis

10.1016/j.jobe.2024.110794

Wang Qiang, Yang Wenwei,  Wang Li, Zhang Dan,  Li Zhijian,  Ma Guowei
Journal Article - Journal of Building Engineering, No. 110794

Abstract

This study explored the feasibility of the integrated steel truss (IST) reinforced 3D printed concrete beams (3DPC truss beams for abbreviation) as a load-bearing element. Forty-five 3DPC truss blocks were firstly tested under axial compression to obtain an appropriate sectional dimension range and reinforcement ratio for the design of 3DPC truss beams. Subsequently, six reinforced and one non-reinforced 3DPC truss beams were designed and tested under flexural loading. The results demonstrated no debonding or local anchorage failure, indicating a strong integration between the printed layers and IST. More notably, the 3DPC truss beams exhibited a ductile failure mode comparable to that of balanced-reinforced RC beams, an outcome rarely observed in contemporary reinforced 3DPC structures. Finally, a time cost-efficient design flow with great accuracy based on finite element analysis for the flexural performance of 3DPC truss beams was proposed and validated. The results from this study show substantial promise for 3DPC truss beams in future applications, particularly in constructing lateral structures that require significant load-bearing capacity and enhanced ductility.

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BibTeX 
@article{wang_yang_wang_zhan.2024.FPotISTR3PCB,
  author            = "Qiang Wang and Wenwei Yang and Li Wang and Dan Zhang and Zhijian Li and Guowei Ma",
  title             = "Flexural Performance of the Integrated Steel-Truss-Reinforced 3D Printed Concrete Beams: Experimental and Numerical Analysis",
  doi               = "10.1016/j.jobe.2024.110794",
  year              = "2024",
  journal           = "Journal of Building Engineering",
  pages             = "110794",
}
Formatted Citation

Q. Wang, W. Yang, L. Wang, D. Zhang, Z. Li and G. Ma, “Flexural Performance of the Integrated Steel-Truss-Reinforced 3D Printed Concrete Beams: Experimental and Numerical Analysis”, Journal of Building Engineering, p. 110794, 2024, doi: 10.1016/j.jobe.2024.110794.

Wang, Qiang, Wenwei Yang, Li Wang, Dan Zhang, Zhijian Li, and Guowei Ma. “Flexural Performance of the Integrated Steel-Truss-Reinforced 3D Printed Concrete Beams: Experimental and Numerical Analysis”. Journal of Building Engineering, 2024, 110794. https://doi.org/10.1016/j.jobe.2024.110794.