Stress-strain behavior and model of bamboo scrimber under cyclic axial compression

Wei, Yang; Tang, Shuaifeng; Ji, Xuewei; Zhao, Kang; Li, Guofen

doi:10.1016/j.engstruct.2020.110279

Cited by 113 publications

(29 citation statements)

References 33 publications

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“…Compression buckling failure also occurred in larger bamboo scrimber specimens. 37,45 For shear failure, the bamboo fibres of columns may work with good structural integrity and little delamination can be found.…”

Section: Failure Modes Of Compressive Specimensmentioning

confidence: 99%

Stress–strain relationship model of glulam bamboo under axial loading

Wei

Zhou

Zhao

et al. 2020

Advanced Composites Letters

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Glulam bamboo has been preliminarily explored for use as a structural building material, and its stress–strain model under axial loading has a fundamental role in the analysis of bamboo components. To study the tension and compression behaviour of glulam bamboo, the bamboo scrimber and laminated bamboo as two kinds of typical glulam bamboo materials were tested under axial loading. Their mechanical behaviour and failure modes were investigated. The results showed that the bamboo scrimber and laminated bamboo have similar failure modes. For tensile failure, bamboo fibres were ruptured with sawtooth failure surfaces shown as brittle failure; for compression failure, the two modes of compression are buckling and compression shear failure. The stress–strain relationship curves of the bamboo scrimber and laminated bamboo are also similar. The tensile stress–strain curves showed a linear relationship, and the compressive stress–strain curves can be divided into three stages: elastic, elastoplastic and post-yield. Based on the test results, the stress–strain model was proposed for glulam bamboo, in which a linear equation was used to describe the tensile stress–strain relationship and the Richard–Abbott model was employed to model the compressive stress–strain relationship. A comparison with the experimental results shows that the predicted results are in good agreement with the experimental curves.

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Section: Failure Modes Of Compressive Specimensmentioning

confidence: 99%

Stress–strain relationship model of glulam bamboo under axial loading

Wei

Zhou

Zhao

et al. 2020

Advanced Composites Letters

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“…The application of bamboo in buildings not only improves the surrounding natural environment during growth but also achieves low energy consumption during processing [5,6]. Compared with some common lumber materials [7,8], bamboo has a more prominent bending strength, tensile strength and compressive strength when used as structural components [9][10][11][12]. In addition, current advanced bamboo processing technologies make it easy to process them into composite materials with high strength and expected sizes.…”

Section: Introductionmentioning

confidence: 99%

“…Fig 12. Influence of the slenderness ratio on the average ultimate longitudinal strain of the specimens…”

mentioning

confidence: 99%

Influence of slenderness ratio and sectional geometry on the axial compression behavior of original bamboo columns

Nie¹,

Wei²,

Huang³

et al. 2021

J Wood Sci

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Bamboo has been widely used as a load-bearing material in construction; however, there are limited studies on the stability of slender original bamboo columns. Based on the experimental investigation of thirty-nine original bamboo columns, parametric analyses were conducted to investigate the influence of the diameter–thickness ratio, cross-sectional area and slenderness ratio on the axial compression behavior of original bamboo columns. The test results indicate that the failure modes of the columns are substantially affected by the slenderness ratio and diameter–thickness ratio. For columns with the same diameter–thickness ratio, the ultimate bearing capacity was negatively correlated with the slenderness ratio, and the highest reduction rate for the load-bearing capacity caused by the slenderness ratio was 44.39%. Under the same slenderness ratio, when the diameter–thickness ratio increased by 18.75%, the ultimate bearing capacity increased by 82.65%. An excessive slenderness ratio may result in local buckling, leading to underutilization of the material strength when failure occurs and substantially reducing the load capacity of bamboo columns. Local buckling can be mitigated by decreasing the slenderness ratio and increasing the diameter–thickness ratio. According to the test results, the model predicting the compressive bearing capacity of the original bamboo column was proposed considering the slenderness ratio and diameter–thickness ratio, and it was indicated that the proposed model can provide satisfactory predictive results.

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“…Yu et al (2017) investigated the manufacturing process and basic properties of bamboo scrimber. Wei et al (2016Wei et al ( , 2018Wei et al ( , 2020aWei et al ( , 2020c, Chen et al (2020c) performed tests on the mechanical properties of bamboo scrimber, including axial tension, axial compression, eccentric compression and bending. Shangguan et al (2015), Zhong et al (2017) studied the compressive properties and bending properties of bamboo scrimber.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on Mechanical Behavior of Bamboo-Concrete Connections and Wood-Concrete Connections

et al. 2020

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To investigate the similarities and differences of mechanical behavior between the bamboo-concrete connections and the wood-concrete connections, thirty-six specimens were tested through push-out tests with the material type (bamboo or wood), concrete strength and dowel diameter as test parameters. In addition to the linear variable displacement transducer the digital image correlation was also used to obtain the slip distribution of the whole field of the specimens, which was conducive to the further detailed analysis of the slip distribution and a comprehensive understanding of the load-slip relationship. The results showed that the failure modes of the bamboo-concrete connections were similar to that of the wood-concrete connections, such as the concrete failure near the joint and the dowels bending in different degrees. The load-slip curves of the two kinds of connections were similar, which could be summarized as the elastic section, strengthening section and descending section. The shear stiffness and capacity of bamboo-concrete connections were higher than that of wood-concrete connections, and the shear capacity increased with the increase of dowel diameter and concrete strength. The slip distribution of the left and right sides of the specimen was basically identical. The load-transfer performance of the dowel was excellent. Finally, the prediction method of shear capacity and load-slip curve model of composite connections were proposed and verified to be effective.

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Stress-strain behavior and model of bamboo scrimber under cyclic axial compression

Cited by 113 publications

References 33 publications

Stress–strain relationship model of glulam bamboo under axial loading

Stress–strain relationship model of glulam bamboo under axial loading

Influence of slenderness ratio and sectional geometry on the axial compression behavior of original bamboo columns

Comparative Study on Mechanical Behavior of Bamboo-Concrete Connections and Wood-Concrete Connections

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