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Innovative Cross-Sectional Configurations for Low-Cost Bamboo Composite (LCBC) Structural Columns

Author

Listed:
  • Cameron Padfield

    (School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK)

  • Ben Drury

    (School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK)

  • Ghazaleh Soltanieh

    (Department of Engineering, Brock University, St. Catharines, ON L2S 3A1, Canada)

  • Mona Rajabifard

    (Department of Engineering, Brock University, St. Catharines, ON L2S 3A1, Canada)

  • Amir Mofidi

    (Department of Engineering, Brock University, St. Catharines, ON L2S 3A1, Canada)

Abstract

This paper investigates the effect of innovative cross-sectional configurations on Low-Cost Bamboo Composite (LCBC) structural members. The study employs both experimental and numerical methods with different resin matrices and bamboo species. In this study, LCBC short columns are designed with different innovative cross-sectional configurations in an attempt to overcome the costly production processes of engineered bamboo. This approach uses bundles of bamboo, both in culm and strip forms. A compatible, environmentally responsible, and economically justifiable resin matrix is used to fabricate an LCBC member. The production of LCBC members does not necessitate highly advanced technology. This capability enables the production of LCBC members in custom-designed cross-sectional shapes and lengths. This study introduces the Russian doll (RD), Big Russian doll (BRD), Hawser (HAW), and Scrimber (SCR) cross-sectional configurations. Extra-large, large, medium, and small sizes of bamboo are employed. Synthetic Epoxy (EXP), a Bio-based Experimental soft filler (BE1), Bio-Epoxy (BE2), Furan-based (PF1) matrices are applied. Furthermore, Moso, Guadua, Madake, and Tali bamboo species are incorporated. The results of this study reveal that the most efficient cross-sectional configuration for compressive strength is the HAW configuration, closely followed by the SCR configuration. LCBC members with bio-resins have shown excellent promise in competing in strength with those made with their synthetic counterparts. The maximum compressive strengths (MPa) were achieved by two specimens with synthetic epoxy closely followed by a specimen with bio-epoxy, namely HAW-EPX-M, RD-EPX-M, and RD-BE2-G specimens with 78 MPa, 75 MPa, and 72 MPa, respectively. In terms of the modulus of elasticity of LCBC with different resin matrices, the stiffest specimens were HAW-BE2-M1, HAW-EPX-M, and HAW-BE2-M2 with 3.89 GPa, 3.08 GPa, and 2.54 GPa, respectively. The theoretical and numerical modelling of the LCBC members showed excellent correlation with the experimental results, which provides the capacity to design LCBC for engineering projects. The LCBC design can be further developed with more bamboo and less resin content.

Suggested Citation

  • Cameron Padfield & Ben Drury & Ghazaleh Soltanieh & Mona Rajabifard & Amir Mofidi, 2024. "Innovative Cross-Sectional Configurations for Low-Cost Bamboo Composite (LCBC) Structural Columns," Sustainability, MDPI, vol. 16(17), pages 1-23, August.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:17:p:7451-:d:1466228
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    References listed on IDEAS

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    1. Ben Drury & Cameron Padfield & Mirko Russo & Lowri Swygart & Oliver Spalton & Sam Froggatt & Amir Mofidi, 2023. "Assessment of the Compression Properties of Different Giant Bamboo Species for Sustainable Construction," Sustainability, MDPI, vol. 15(8), pages 1-17, April.
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