Bending properties and design strength of reconstituted bamboo at different temperatures

Zhao, Kunpeng; Wei, Yang; Chen, Si; Lin, Yu; Huang, Linjie

doi:10.1002/pc.27207

Cited by 12 publications

(5 citation statements)

References 54 publications

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“…The SIM tests were started at a temperature of 23 C. The dwell time for each isothermal step was 5 h. Each isothermal step was followed by a temperature rise of 7 C, and the temperature rise was completed within 10 min. To prevent the thermal decomposition of bamboo chemical components, the rising temperatures shall not exceed 100 C. [40][41][42][43] All the tests were completed within 2 days and the creep data were recorded at an interval of 1 s.…”

Section: Sim Accelerated Creep Testmentioning

confidence: 99%

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Experimental characterization of creep behavior of laminated bamboo composites based on stepped isothermal method

et al. 2023

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In the present research, the accelerated test using the stepped isothermal method (SIM) was applied to characterize the long-term compressive behavior of laminated bamboo. Generating a creep master curve using the SIM data is somewhat empirical. In particular, the selection of the end and beginning segments in the rescaling process is not standardized, which will affect the determination of virtual time. The variability of the virtual time influences the construction of master curves, thus leading to errors in predicting long-term behavior. The difference in selecting the end and beginning segments was

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Section: Sim Accelerated Creep Testmentioning

confidence: 99%

“…To prevent the thermal decomposition of bamboo chemical components, the rising temperatures shall not exceed 100°C. [ 40–43 ] All the tests were completed within 2 days and the creep data were recorded at an interval of 1 s.…”

Section: Experimental Programmentioning

confidence: 99%

Experimental characterization of creep behavior of laminated bamboo composites based on stepped isothermal method

et al. 2023

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“…Engineered bamboo and wood composites are of particular interest due to the standardization of shape and the relatively low variability in material properties. 6,7 Traditional building materials, including steel and concrete are high-energy content materials that consume high energy during the recycling phase. Bamboo and wood, in contrast, are associated with low embodied energy (i.e., the amount of energy required to harvest, mine, manufacture, and transport), low carbon impact, and a good service life.…”

Section: Introductionmentioning

confidence: 99%

“…These components could ensure that the material has good physical and mechanical properties. Engineered bamboo and wood composites are of particular interest due to the standardization of shape and the relatively low variability in material properties 6,7 . Traditional building materials, including steel and concrete are high‐energy content materials that consume high energy during the recycling phase.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the combustion properties of four common engineered bamboo and wood composites

Cui,

Xu,

Tang

et al. 2023

Polymer Composites

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Engineered bamboo and wood composites are increasingly utilized in construction due to their eco‐friendly, low‐carbon footprint, and superior mechanical properties. To investigate the effect of heat flux and grain direction on the combustion properties of parallel strand bamboo (PSB), laminated veneer bamboo (LVB), cross‐laminated timber (CLT), and laminated veneer lumber (LVL), a total of 54 specimens in 3 groups were tested through a cone calorimeter. Parameters including the ignition time, heat release rate, mass loss rate, and smoke production rate were investigated. The analytic hierarchy process method was adopted for a multi‐level, qualitative, and quantitative comprehensive fire risk assessment of the corresponding structural materials. The test results reveal that PSB and LVB demonstrated superior performance to the CLT and LVL through the comparison of four combustion characteristics parameters, despite their drawbacks and virtues. The heat flux increases in inverse proportion to the ignition time. As for the heat release rate, the larger peak value is accompanied by an earlier appearance, along with the greater average mass loss rate and the lower smoke rate of engineered bamboo. The peak heat release rate of engineered bamboo composites parallel to the grain is larger than that perpendicular to the grain, whereas other parameters are not significantly influenced by the grain direction. Compared with engineered wood, engineered bamboo composites have the potential to be a safer and more reliable building material in terms of fire risk assessment.Highlights Cone calorimeter was used to analyze the combustion properties of materials. PSB, LVB, CLT, and LVL were studied considering different grain directions. Analytic hierarchy process method was adopted for a fire risk assessment. Engineered bamboo has the potential to be a reliable building material.

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“…Wood products have made significant progress with the development of processing techniques, demonstrating further advantages in seismic resistance, preservation and structural performance [1][2]. Wood structures have been widely applied in commercial buildings, residential constructions and high-rise buildings [3][4][5]. Cross-laminated timber (CLT) comprises three layers of wood panels, with each layer consisting of solid sawn timber or structural wood composite arranged parallel to each other and bonded perpendicularly to adjacent layers [6].…”

Section: Introductionmentioning

confidence: 99%

Study on bending performance of prefabricated glulam-cross laminated timber composite floor with screw connections

Chen

et al. 2023

Preprint

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The glulam-cross laminated timber (CLT) composite floor is a type of prefabricated composite floor that integrates glulam beams and CLT slab into a unified structure using shear connectors. To investigate the bending performance of the glulam-CLT composite floor, the bending test was conducted on a full-scale composite floor under static load. The study comprehensively analyzed the failure mechanism, load-deflection behavior, interface slip and strain distribution of the glulam-CLT composite floor. The test results of the composite floor indicated that the failure mode was tensile fracture of the wood beam at the bottom. As the load increased, the relative slips extended towards the mid-span, and the rate of increase in relative slip gradually increased, which could be attributed to the decrease in shear stiffness of the screw connections and the overall composite action. In the earlyloading phase, the strain distribution of the composite section satisfied the assumption of a plane section. However, the strain distribution deviated from this assumption with the increased load due to the relative slips between the glulam beam and CLT flange. To calculate the bending performance of the composite floor, the M-shaped section of the glulam-CLT composite floor was simplified as T-section composite beams. The linear-elastic method for determining the flexural rigidity and ultimate bearing capacity of the glulam-CLT composite floors was proved to be accurate and reliable.

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Bending properties and design strength of reconstituted bamboo at different temperatures

Cited by 12 publications

References 54 publications

Experimental characterization of creep behavior of laminated bamboo composites based on stepped isothermal method

Experimental characterization of creep behavior of laminated bamboo composites based on stepped isothermal method

Experimental study on the combustion properties of four common engineered bamboo and wood composites

Study on bending performance of prefabricated glulam-cross laminated timber composite floor with screw connections

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