Mechanical behavior of laminated bamboo–timber composite columns under axial compression

Chen, Si; Wei, Yang; Wang, Gaofei; Zhao, Kang; Ding, Mingmin

doi:10.1007/s43452-023-00612-y

Cited by 16 publications

(3 citation statements)

References 29 publications

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“…The results of the range analysis and ANOVA about density are shown in Tables 4 and 5. Basically, the higher density of the laminated bamboo composite could promote its strength properties, such as compressive strength parallel to grain and MOE [21,23]. In addition, density also exerts an opposite impact on the thickness expansion rate of water absorbing.…”

Section: Densitymentioning

confidence: 99%

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Study on the Molding Factors of Preparing High-Strength Laminated Bamboo Composites

Colince,

Qian,

Zhang

et al. 2024

Materials

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To promote the development of the ‘Bamboo as a Substitute for Steel’ proposal, rotary cut bamboo veneers were applied to prepare a kind of high-strength laminated bamboo composite, which was achieved through the hot press molding method in this study. Orthogonal experiments of L9 (33) were performed, with hot-pressing temperature, pressure, and time considered as three influencing factors. Physical properties like density and moisture content, and mechanical properties like modulus of rupture (MOR), modulus of elasticity (MOE), shear strength, and compressive strength were tested for the samples. It can be obtained from the results of range analysis and ANOVA that higher density and lower moisture content were correlated with higher mechanical strength. Within the selected range of tested factors, a hot-pressing temperature and time of 150 °C and 10 min can contribute to higher density and lower moisture content, and the combination of 150 °C and 50 MPa can produce greater mechanical strength. In the thickness direction, the laminated bamboo composites displayed a notable compressed structure.

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Section: Densitymentioning

confidence: 99%

“…At present, cross-laminated bamboo (CLB) or cross-laminated bamboo and timber (CLBT) panels can be used in wall or floor panel construction [20]. Chen et al studied a new type of laminated bamboo-timber composite column with an improved compressive performance [21].…”

Section: Introductionmentioning

confidence: 99%

Study on the Molding Factors of Preparing High-Strength Laminated Bamboo Composites

Colince,

Qian,

Zhang

et al. 2024

Materials

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“…The wood-concrete composite slab emerges as an innovative variant of the wood slab. It amalgamates wood members and concrete slabs into a cohesive structure through shear connections, thereby facilitating the utilization of the material properties (Yeoh et al 2011a;Chen et al 2023;. The woodconcrete composite slabs retain the excellent characteristics of wooden floors while enhancing mechanical performance, sound insulation properties, and fire resistance (Deam et al 2008a, b;Zhang et al 2020;Li et al 2023).…”

Section: Introductionmentioning

confidence: 99%

Experimental research on bending performance of wood-concrete composite slab with screw connections

Du,

Mei,

et al. 2024

BioRes

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The existing research primarily focuses on wood-concrete composite beams, with limited studies on the bending performance and effective width of wood-concrete composite slabs. A full-scale composite slab with screw connections was constructed and subjected to static load testing. The study extensively investigated the ultimate bearing capacity, load-deflection curves, interface slips, strain distributions of cross-section and effective width of the wood-concrete composite slab. It was found that the failure mechanism of the composite slab involved both bending and tensile failure of the wood beams. As the applied load intensified, a marked augmentation in the longitudinal strain of the concrete slab was observed; along the width direction, the longitudinal strain of concrete slab manifested a curved distribution. The precise determination of the effective width of the concrete slab within the composite floor could be accurately achieved via the utilization of a simplified computational approach. In order to simplify the analysis, the M-shaped section of composite slab was approximated as T-section composite beams when evaluating the bending behavior. The linear-elastic model was shown to be accurate in predicting the bending stiffness and load-carrying capacity of composite slabs.

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Tensile and compressive properties of bamboo scrimber under different temperature conditions

Deng,

Wei,

Chen

et al. 2024

Polymer Composites

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Bamboo scrimber demonstrates vulnerability to environmental temperature fluctuations, such as exposure to cold or fire, when deployed in structural applications. Consequently, its mechanical properties can substantially diverge from the intended design values under varying thermal conditions. This study aims to study the tensile and compressive properties of bamboo scrimber under different temperatures to provide data support for studying bamboo scrimber under low and high temperatures. The compressive properties of bamboo scrimber under temperatures ranging from −30°C to 250°C and the tensile properties under −20°C to 250°C were determined by a series of tests with a total of 125 specimens. The results show that the mass loss of bamboo scrimber increases gradually with the increase in temperature, and the increasing trend intensifies after 120°C. With the increase of temperature, the failure mode of the specimens under compression changes from the bottom compression cracking damage to the local destabilization of longitudinal fibers, while the tensile damage modes aren't influenced by temperature, and both “straight‐line” and “folded‐line” types of damage modes occur at different temperatures. The tensile and compressive strengths and elastic modulus of the specimens decreased with the increase in temperature, and the strength was more susceptible to the temperature than the elastic modulus: a rise in temperature from 20°C to 250°C resulted in a reduction of compressive strength and tensile strength by 80.80% and 84.11%, respectively, the compressive modulus and tensile modulus experienced decreases of 49.51% and 53.28%. Furthermore, equations of temperature influence coefficients of strength and elastic modulus were established based on the test results.Highlights Bamboo scrimber's mechanical properties under different temperatures are studied. Tendency and explanation of temperature influence coefficients are analyzed. Temperature coefficient equations for strength and elastic modulus are proposed.

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Mechanical behavior of laminated bamboo–timber composite columns under axial compression

Cited by 16 publications

References 29 publications

Study on the Molding Factors of Preparing High-Strength Laminated Bamboo Composites

Study on the Molding Factors of Preparing High-Strength Laminated Bamboo Composites

Experimental research on bending performance of wood-concrete composite slab with screw connections

Tensile and compressive properties of bamboo scrimber under different temperature conditions

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