Evaluation of OSB webbed laminated bamboo lumber box-shaped joists with a circular web hole

Chen, Guo; Wu, Jian; Jiang, Haisong; Zhou, Tong; Li, Xiang; Yu, Yunfei

doi:10.1016/j.jobe.2019.101129

Cited by 28 publications

(13 citation statements)

References 38 publications

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“…However, the serviceability limit of flexural members is determined by deformation rather than strength in most cases. The bamboo flexural members have the defects of insufficient bearing capacity, low section stiffness, and insufficient spanning capacity (Chen et al, 2020a;Chen et al, 2020b;Wei et al, 2020b), which is similar to the wood flexural members. To enhance the flexural performance, the wood-concrete composite structure was proposed.…”

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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Section: Introductionmentioning

confidence: 99%

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

et al. 2020

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“…The effect of the connection determines the working performance of the composite structure [ 18 , 19 , 20 , 21 , 22 ]. The performance of timber–concrete composite beams with different types of connections has been reported by existing studies [ 14 , 15 , 16 , 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Timber−Lightweight Concrete Composite Beams with Ductile Bolt Connectors

Wei

Chen

et al. 2021

Materials

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A timber–lightweight−concrete (TLC) composite beam connected with a ductile connector in which the ductile connector is made of a stainless−steel bolt anchored with nuts at both ends was proposed. The push−out results and bending performance of the TLC composite specimens were investigated by experimental testing. The push−out results of the shear specimens show that shear–slip curves exhibit good ductility and that their failure can be attributed to bolt buckling accompanied by lightweight concrete cracking. Through the bending tests of ten TLC composite beams and two contrast (pure timber) beams, the effects of different bolt diameters on the strengthening effect of the TLC composite beams were studied. The results show that the TLC composite beams and contrast timber beams break on the timber fiber at the lowest edge of the TLC composite beam, and the failure mode is attributed to bending failure, whereas the bolt connectors and lightweight concrete have no obvious breakage; moreover, the ductile bolt connectors show a good connection performance until the TLC composite beams fail. The ultimate bearing capacities of the TLC composite beams increase 2.03–3.5 times compared to those of the contrast beams, while the mid-span maximum deformation decrease nearly doubled.

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“…Bamboo, characterized by a relatively short growth period, is a widespread biomass in nature and can be easily used as a structural component in current buildings [1][2][3][4]. 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].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, current advanced bamboo processing technologies make it easy to process them into composite materials with high strength and expected sizes. Extensive research on bamboo has focused on bamboo composite materials [13][14][15][16][17]. The basic load-carrying capacities of structural components manufactured by bamboo composites under bending, tension and compression have been systematically investigated [18][19][20][21][22]; moreover, bamboo composite materials have been widely used as the main structural components in some building and bridge structures [23,24].…”

Section: Introductionmentioning

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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Evaluation of OSB webbed laminated bamboo lumber box-shaped joists with a circular web hole

Cited by 28 publications

References 38 publications

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

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

Experimental Study on Timber−Lightweight Concrete Composite Beams with Ductile Bolt Connectors

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

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