Slenderness Limits and Buckling Response of Bamboo Scrimber under Axial Compression

Abstract:

Bamboo scrimber is a promising engineered bamboo material in the construction sector due to its favourable mechanical and aesthetic properties. Although considerable research on mechanical properties has been conducted, there is a gap in the knowledge of slenderness limits for short columns of bamboo scrimber. Slenderness limits suggested in four testing and structural design standards that are commonly used for engineered bamboo have been critically analysed and compared to identify their relative shortcomings. From these standards, Eurocode 5 proposes a better limit while the others behave conservatively. Owing to the lack of a design standard for engineered bamboo, researchers abide by standards compiled for timber/engineered timber to predict the compressive response of intermediate and long columns. In addition to showing the limitations of these studies, a rational column equation has been derived with a modified Euler load that yields reasonable accuracy with respect to two experimental studies.

• Periodical: Materials Science Forum (Volume 1123)
• Pages: 53-58
• DOI: https://doi.org/10.4028/p-naDnW6
• Online since: July 2024
• Authors: Janeshka Goonewardena*, Mahmud Ashraf, Mahbube Subhani, Bidur Kafle, Johannes Reiner
• Keywords: Bamboo Scrimber, Engineered Bamboo, Long Column, Short Column, Slenderness Limit

References

[1] Sun X, He M, Li Z. Novel engineered wood and bamboo composites for structural applications: State-of-art of manufacturing technology and mechanical performance evaluation. Construction and Building Materials. 2020;249:118751.

DOI: 10.1016/j.conbuildmat.2020.118751

[2] Liese W. Research on bamboo. Wood Science and Technology. 1987;21(3):189-209.

[3] Huang Y, Ji Y, Yu W. Development of bamboo scrimber: a literature review. Journal of Wood Science. 2019;65(1):25.

[4] Goonewardena J, Ashraf M, Reiner J, Kafle B, Subhani M. Constitutive Material Model for the Compressive Behaviour of Engineered Bamboo. Buildings. 2022;12(9):1490.

DOI: 10.3390/buildings12091490

[5] Tan C, Li H, Wei D, Lorenzo R, Yuan C. Mechanical performance of parallel bamboo strand lumber columns under axial compression: Experimental and numerical investigation. Construction and Building Materials. 2020;231:117168.

DOI: 10.1016/j.conbuildmat.2019.117168

[6] Tan C, Li H, Ashraf M, Corbi I, Corbi O, et al. Evaluation of axial capacity of engineered bamboo columns. Journal of Building Engineering. 2021;34:102039.

DOI: 10.1016/j.jobe.2020.102039

[7] Amede EA, Hailemariama EK, Hailemariam LM, Nuramo DA. A review of codes and standards for bamboo structural design. Advances in Materials Science and Engineering. 2021;2021:1-9.

DOI: 10.1155/2021/4788381

[8] ISO 23478:2022 Bamboo structures - Engineered bamboo products test methods for determination of physical and mechanical properties. 2022.

DOI: 10.3403/30382335u

[9] ASTM D198: Standard test methods of static tests of lumber in structural sizes. . 2022.

[10] AS1720. 1—Timber structures—Part 1: Design methods. 2010.

[11] BS EN 1995-1-1: Design of Timber Structures–Part 1-1: General–Common Rules and Rules for Buildings. 2004.

[12] Penellum M, Sharma B, Shah D, Foster R, Ramage M. Relationship of structure and stiffness in laminated bamboo composites. Construction and Building Materials. 2018;165:241-6.

DOI: 10.1016/j.conbuildmat.2017.12.166

[13] Li X, Ashraf M, Li H, Zheng X, Ameri A, et al. Behaviour of Parallel Bamboo Strand Lumber under compression loading – an experimental study. MATEC Web of Conferences. 2019; 275: 01002.

DOI: 10.1051/matecconf/201927501002

[14] Li H, Qiu Z, Wu G, Wei D, Lorenzo R, et al. Compression behaviors of parallel bamboo strand lumber under static loading. Journal of Renewable Materials. 2019; 7(7):583-600.

DOI: 10.32604/jrm.2019.07592

[15] Zahn JJ. Re-examination of Ylinen and other column equations. Journal of Structural Engineering. 1992;118(10):2716-28.

DOI: 10.1061/(asce)0733-9445(1992)118:10(2716)

[16] BS ISO 22156: Bamboo structures - bamboo culms - structural design. 2022.

[17] Chen S, Wei Y, Hu Y, Zhai Z, Wang L. Behavior and strength of rectangular bamboo scrimber columns with shape and slenderness effects. Materials Today Communications. 2020;25:101392.

DOI: 10.1016/j.mtcomm.2020.101392