The ultimate load-carrying capacity and deformation of laminated bamboo hollow decks: Experimental investigation and inelastic analysis

Huang, Zirui; Chen, Zhongfan; Huang, Dongsheng; Zhou, Annan

doi:10.1016/j.conbuildmat.2016.04.115

Cited by 40 publications

(35 citation statements)

References 9 publications

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“…The tensile constitutive law exhibited perfectly elastic behaviors, whereas the compressive constitutive law presented distinct nonlinearity once the stress exceeds the proportional limit. By considering the compressive nonlinearity of a LB composite, Huang et al (2016) developed an inelastic model for the ultimate-state analysis of LB hollow decks.…”

Section: Introductionmentioning

confidence: 99%

“…The formula involved strains of materials, which is not suitable for design calculation. Huang et al (2016) invented a hollow deck made with LB composite. An experimental study indicated that the strength of an LB hollow deck is much higher than that of a concrete deck with the same dimensions.…”

Section: Introductionmentioning

confidence: 99%

“…Laminated bamboo (LB) is a processed bamboo-based composite manufactured with bamboo strips (Li et al 2015;Huang et al 2016). Four-to 5-year-old Phyllostachys bamboo culms with a 100-mm cross-section diameter (a common bamboo species grown in southwest China) are typically used to manufacture LB composites (Fig.…”

Section: Introductionmentioning

confidence: 99%

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Inelastic Bending Performances of Laminated Bamboo Beams: Experimental Investigation and Analytical Study

et al. 2017

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Laminated bamboo (LB) is a processed bamboo-based composite fabricated by gluing bamboo strips under controlled temperature and pressure. It has many superior mechanical properties compared to commonly used wood products and is well suited for use as a construction material. The present work consisted of two parts. The first part aimed at studying the bending performances of LB beams. The stress-strain relationship of the LB composite had approximately perfect elasticity under tension, yet exhibited more complicated behavior under compression (i.e., linearity in the prior-proportional limit and nonlinearity in the postproportional limit). The strength in tension was significantly higher than that during compression. Damage of LB beam began with the fiber yielding in the compressive zone until failure occurred when the fibers at the outermost part of the tensile zone broke. Hence, LB beams always underwent a long nonlinear process before failure. An empirical stressstrain relationship was proposed on the basis of a bilinear model. In the second part of the study, an analytical model for calculating the loadcarrying capacity and deflection of LB beams was developed. Experimental results confirmed that the model had enough accuracy for design calculation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Inelastic Bending Performances of Laminated Bamboo Beams: Experimental Investigation and Analytical Study

et al. 2017

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“…To overcome these constraints, bamboo scrimber and laminated bamboo are typical composite products based bamboo fiber. The bamboo scrimber is made up of bamboo bundles or fiberized bamboo veneers as a unit, glued and pressed into plate or square material [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…The application of bars in the tensile regions of bamboo beams significantly increased the load-carrying capacity and section stiffness and improved the utilization of the compression plastic behavior of bamboo. Zhou et al [17][18][19][20] carried out the four-point bending test of CFRP reinforced bamboo scrimber beam. The results indicated that the deformation of the specimens were nonlinear when the stress of the outermost fibers exceeded the limit of compression resistance in the compression zone and the fibers at the bottom of the component were broken when the outermost fibers exceeded the limit of tensile strength in the tension zone.…”

Section: Introductionmentioning

confidence: 99%

Flexural Performance of CFRP-Bamboo Scrimber Composite Beams

Wu¹,

Huang²,

Li³

2019

Journal of Renewable Materials

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This study presents a new structure made up of bamboo scrimber and carbon fiber reinforced polymer (CFRP) to address the low stiffness and strength of bamboo scrimbers. Three-point bending test and finite element model were conducted to study the failure mode, strain-displacement relationship, load-displacement relationship and relationships between strain distribution, contact pressure and deflection, and adhesive debonding. The results indicated that the flexural modulus and static flexural strength of the composite beams were effectively increased thanks to the CFRP sheets. The flexural modulus of the composite specimens were 2.33-2.94 times that of bamboo scrimber beams, and the flexural strength were 1.49-1.58 times that of bamboo scrimber beams. Adhesive debonding had a great influence on the strain distribution and deflection of the composite specimens. It was an important factor for the failure of the CFRP-bamboo scrimber composite specimens. According to the finite element simulation, the strain distribution, contact pressure and deflection also greatly changed with the adhesive debonding. After complete peeling, the deflection of the specimen was 3.09 times that of the unpeeled because it was no longer an integral beam.

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Temperature effect on the physical and mechanical properties of parallel strand bamboo

2020

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Summary This study sets out to assess the temperature effect on the physical and mechanical properties of parallel strand bamboo (PSB). Seventeen temperature levels, in the range of 20°C to 290°C, were considered. Results indicated that a high temperature led to a reduction in compressive strength and modulus. The reduction is associated with the glass transition and thermal decomposition of the chemical compositions in bamboo. Due to the higher crystallinity of cellulose at high temperatures between 150°C and 190°C, a rising in the compressive modulus parallel‐to‐grain was observed. The temperature effect on the mechanical properties of PSB was further supported by scanning electron microscopy (SEM) images. Statistical regression‐based models were developed for predicting the reduction of compressive strength and modulus of PSB with exposure temperature. The models provided a good fit to the experimental data. Comparison with that of bamboo scrimber and timber structures in literature was also presented in this study.

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The ultimate load-carrying capacity and deformation of laminated bamboo hollow decks: Experimental investigation and inelastic analysis

Cited by 40 publications

References 9 publications

Inelastic Bending Performances of Laminated Bamboo Beams: Experimental Investigation and Analytical Study

Inelastic Bending Performances of Laminated Bamboo Beams: Experimental Investigation and Analytical Study

Flexural Performance of CFRP-Bamboo Scrimber Composite Beams

Temperature effect on the physical and mechanical properties of parallel strand bamboo

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