AN EXPERIMENTAL STUDY ON THE BOLTED JOINT STRENGTH OF LAMINATED BAMBOO PEDESTALS

Abstract

Laminated bamboo technology has emerged as a promising alternative to traditional wood-based materials for various construction applications. Inspired by the concept of laminated wood blocks, glued bamboo blocks consist of thin layers of bamboo that are assembled and bonded together to form strong and versatile building elements. One of the key advantages of this technology is its ability to mitigate issues related to cracks, breaks, and defects caused by drying, owing to the rapid and efficient drying process of the thin bamboo sheets. Additionally, the mechanical strength of laminated bamboo, particularly its bolt resistance, has been investigated through various tests to assess its ultimate strength under compressive loading. However, despite its potential, the mechanical properties of laminated peton bamboo, including the Poisson's ratio, remain unexplored in previous studies. Bamboo, as a construction material, offers numerous economic and ecological benefits. Its widespread availability, cost-effectiveness, and structural strength make it an attractive option for sustainable building practices, potentially curbing deforestation caused by excessive wood consumption. Furthermore, bamboo's unique properties, such as its lightweight and tall stature, make it an ideal choice for various structural applications. The study covers all aspects of bamboo structures throughout their life cycle, encompassing design, manufacturing, transportation, construction, operation, maintenance, and future reuse planning.

Research has demonstrated the superior mechanical properties of laminated bamboo when engineered with multiple layers and a substantial resin matrix. Furthermore, investigations into the variability of laminated bamboo strength have been influenced by factors such as bamboo type, strip density, thickness, growth stage, treatment methods, adhesive type, and application areas in construction.

In recent years, laminated bamboo construction has gained significant attention, especially for applications in civil engineering. However, the absence of standardized building codes for bamboo structures necessitates the use of wooden structure codes by engineers. Thus, there is a growing need to establish a comprehensive standard system to facilitate the widespread adoption of bamboo structures.

This paper also explores engineered wood and bamboo composites that aim to reduce the natural material's variability while providing superior material properties and structural performance compared to raw bamboo. Types of engineered wood composites, including Fiber Reinforced Polymer (FRP), Reinforced Bonded Laminated Timber, Cloth Laminated Timber (CLT), and Wood Scorer, have been investigated, alongside newly developed bamboo composites like Laminated Bamboo (LBL), Glued Laminated Bamboo (Glubam), and bamboo scribes, along with their fabrication techniques, modeling approaches, and mechanical characteristics.