Non-linear finite element analysis of bamboo reinforced concrete beams: Evaluating structural performance

Abstract

This study has evaluated the structural performance of Bamboo Reinforced Concrete (BRC) beams through a detailed Finite Element Method (FEM) analysis, utilizing different species of bamboo as reinforcement. The material properties, including density and Young's modulus of bamboo, have been established, showing significant variability across species. The ‘Bullet’ bamboo has been observed to have the highest Young's modulus, indicating potential for high stiffness applications, while ‘Kanaat’ bamboo has displayed properties conducive to applications requiring flexibility and energy absorption under dynamic loading. FEM simulations have revealed that ‘Bullet’ bamboo reinforced beams could withstand higher stresses in both tensile and compressive zones, suggesting a strong resistance to bending and making it an excellent candidate for structural elements. Conversely, ‘Kanaat’ bamboo has exhibited a more even stress distribution, desirable in scenarios where a flexible response is beneficial. The stress and strain profiles for different bamboo reinforcements under loading conditions have been analysed, along with the stress distribution, along the beam's length and across its depth. The study has affirmed the potential of bamboo as a sustainable reinforcement material for concrete structures, with the choice of species playing a pivotal role in determining the beam's mechanical behaviour.