A Review of Basic Mechanical Behavior of Laminated Bamboo Lumber

Abstract

Over the past decade, the physical and mechanical performances of laminated bamboo lumber (LBL)-a bamboobased structural material, have been extensively studied using experimental, analytical, and numerical approaches. This paper presents a review of existing knowledge in the literature about the mechanical properties of LBL. The paper involved the review of the response of LBL to different types of loading such as tension, bending, compression, and shear. Based on results of the literature reviewed, the strength of LBL parallel to grain was 90-124 MPa with MOE of 10700 MPa in tension, 29. 55-72.60 MPa, and MOE of 8396-11022 MPa in compression, 63.87-128.4 MPa, and MOE of 8320-10912 MPa in bending, and 7.15-17.5 MPa in shear. The average strength of LBL was similar and in some cases exceeded the average values of bamboo-or wood-based materials, while the variability of its mechanical parameters was lower. The variability in strength values of LBL was affected by bamboo species, density and thickness of bamboo strips, growth portion, type of treatment, strips arrangements, and type of adhesive which in turn calls for classification of LBL by strength grades, degree of hardness, the capability of impregnation and penetration, as well as by areas of application in construction. The study provided and discussed concluding observations, the current research gap, and future research directions on the mechanical properties of LBL.

A Review on the Mechanical Behaviour of Bamboo Reinforced Concrete Beams

“…Numerous studies recommended applying excessive reinforcement or a lower workload than the strength limit of the composite [38]. Despite the lower Table 1: Selected mechanical properties of bamboo and other reinforcing materials Reinforcing material Yield strength, MPa Tensile strength, MPa MOE, GPa Bamboo [7,19] 201 309 27 Steel [19][20][21] 442 620 207 GFRP [22][23][24] 680 3100-4150 57-86 CFPR [24,25] -3500-6000 230-600 AFRP [24,26] -1540-3400 70-140 BFRP [24,27] -3000-4840 [79][80][81][82][83][84][85][86][87][88][89][90][91][92][93] Notes: GFRP-Glass Fibre Reinforced Plastic; CFPR-Carbon Fibre Reinforced Plastic; AFRP-Aramid Fibre Reinforced Plastic; BFRP-Basalt Fibre Reinforced Plastic; MOE-Modulus of Elasticity.…”

“…The development of resilient building materials has become one of the essential tasks to improve the sustainability of the construction sector. Over the past decade, original bamboo has received much attention due to its sustainability and strength [7][8][9]. The mechanical characteristics of bamboo may vary depending on the species and moisture content.…”

Innovation in Green Building Technology: The Impact of Bamboo Metal Roofing

“…Bamboo fibre has higher shear stress than wood and has a greater range of motion than wood. Bamboo is one of the strongest building materials, with a tensile strength of more than or equal to 28,000 N per square inch, as opposed to steel, which has a tensile strength of 23,000 N per square inch (Dauletbek et al, 2022). It may also be bent without breaking and has a high amount of silicate acid, making it an extremely fire-resistant plant.…”

“…Bamboo is one of the materials that have a longer lifespan, and higher strength which can provide support towards the strength of metal as a roof. It is also a green material that is easy to find in this country (Dauletbek et al, 2022). The advantages of Bamboo Metal Roofing are compared to the existing common metal such as the corrugated metal roofing and the standing seam metal roofing in terms of its installation, environment, and cost criteria.…”

Influence of Dowel Center Spacing on Chamfered-Joint Components Made by Cupressus funebris Wood

“…Wood and bamboo are the most important natural and endless renewable sources of structural materials [1,2]. The chamfered-joint structure is improved from the most commonly used mortise-and-tenon joints and is widely used in the wood structure and furniture industry.…”