Experimental study on flexural performance of glued-laminated-timber-bamboo beams

Xu, Qingfeng; Leng, Yubing; Chen, Xi; Harries, Kent A.; Chen, Lingzhu; Wang, Zhuolin

doi:10.1617/s11527-017-1135-2

Cited by 35 publications

(5 citation statements)

References 21 publications

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“…The properties of the BLT was a density of 0.65 g/cm 3 , a moisture content of 9–13%, and a thickness of 11.5 mm. The hot pressing parameters used were a hot pressing temperature of 100 °C, a hot pressing pressure of 8–12 MPa, and a hot pressing time of 8.0 min [3].…”

Section: Methodsmentioning

confidence: 99%

“…Bamboo is one of the most prominent renewable biomass resources in the world. The bamboo-engineering composites represented in this study are bamboo scrimber (BS), bamboo laminated timber (BLT), and bamboo bundle/wood veneer lumber (BLVL) which are favored by consumers in China where they are widely used in construction, outdoor flooring, furniture, and transportation [1,2,3]. As a biomass resource, bamboo contains various tiny voids that make up its pore structure and its chemical composition which contains a large number of polar hydrophilic groups such as hydroxyl groups and amino groups [4,5,6], which will cause it to absorb moisture from the ambient environment.…”

Section: Introductionmentioning

confidence: 99%

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Hydrothermal Aging Properties of Three Typical Bamboo Engineering Composites

Zhou¹,

Wang²,

Chen

et al. 2019

Materials

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The objective of this study was to investigate the hygroscopic characteristics of three typical bamboo engineering composites (Bamboo scrimber (BS), bamboo bundle/wood laminated veneer lumber (BLVL), and bamboo laminated timber (BLT)) as well as predict their performance changes and service life in hot humid environments. The composites were subjected to three treatment conditions (23 °C, 63 °C, and 100 °C) for this experiment. The hygroscopic thickness swelling model and Fick’s second law were used to quantify the characterization and prediction of the water absorption, thickness swelling rate, and water absorption rate of BS, BLVL, and BLT. The results indicated that the order of the hygroscopic thickness swelling coefficient KSR and the diffusion coefficient D was BLT > BLVL > BS (at 23 °C and 63 °C). The optimal dimensional stability was displayed by BS, followed by BLVL and BLT. In addition to the hygroscopic properties, elastic modulus degradation was investigated. It was observed that the elastic modulus (MOR) degradation had a linear relationship with the aging temperature. After 152 h of the hydrothermal aging test (63 °C), the MOE of BS, BLVL, and BLT degraded by 44.33%, 53.89%, and 25.83%, respectively.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hydrothermal Aging Properties of Three Typical Bamboo Engineering Composites

Zhou¹,

Wang²,

Chen

et al. 2019

Materials

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“…Manufacturing multi-material/species glulam beams with components that have different strength grades is an effective way to produce low cost, high strength structural members with optimised material exploitation. A good option is to combine the high strength engineered bamboo [25][26][27] and softwood timber to produce a sandwich glulam bamboo-timber beam [28][29][30][31][32][33]. The difference in mechanical properties and strength between engineering bamboo and softwood makes them a perfect pair to examine this new concept of bio-based prestress technology.…”

Section: Introductionmentioning

confidence: 99%

A new concept of bio-based prestress technology with experimental Proof-of-Concept on Bamboo-Timber composite beams

Zhang,

Shen,

Deng

et al. 2023

Construction and Building Materials

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“…The advantages of bamboo materials provide new options for materials used in green buildings [1][2][3][4]. Bamboo is a sustainable material, and its energy consumption is 1/8th of concrete and 1/50th of steel for the same building area [5][6][7]. Bamboo engineering materials show excellent vibration damping and vibration suppression properties due to their stiffness and damping effects [8,9], giving them wide application 2 of 14 prospects for green low-carbon buildings.…”

Section: Introductionmentioning

confidence: 99%

Vibration Performance of Bamboo Bundle/Wood Veneer Composite Floor Slabs for Joist-Type Floor Coverings

Chen¹,

Han²,

Li³

et al. 2023

Preprint

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Bamboo engineering materials are green, high-strength, tough, durable, and structurally safe, and have promising application prospects in various modern green and low-carbon buildings. To invest the vibration behavior of new bamboo bundle veneer -laminated lumber (BLVL) for use in floor slabs, this study designed two kinds of full-scale vibration tests under a pedestrian load: an extraction hammer impact test, and a static concentrated load test, it is expected to provide theoretical and data support for the application of bamboo bundle veneer laminated composite materials in the construction field. The results showed that the self-oscillation frequency and mid-span deflection of the BLVL composite met the requirements of multiple relevant regulations when used as the structural material of floor slabs. The BLVL floor slab had a higher flexural stiffness and better vibration-damping performance than the OSB floor slab. The first-order self-oscillation frequency of the BLVL composite floor slab was 13.769 Hz, the damping ratio of the first three orders of modalities was 1.262–2.728%, and the maximum static deflection in the span of the joist was 0.932 mm under a 1 kN concentrated load. The 1 kN static deflection of the BLVL was reduced by 22.33%, and the root mean square (RMS) acceleration of the walking load response was significantly lower than that of the OSB floor slab. The preparation of BLVL composite materials by homogeneous lamination of bamboo bundle veneer and wood veneer may help improve the vibration behavior of bamboo-wood structures such as floor slabs and walls.

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Experimental study on flexural performance of glued-laminated-timber-bamboo beams

Cited by 35 publications

References 21 publications

Hydrothermal Aging Properties of Three Typical Bamboo Engineering Composites

Hydrothermal Aging Properties of Three Typical Bamboo Engineering Composites

A new concept of bio-based prestress technology with experimental Proof-of-Concept on Bamboo-Timber composite beams

Vibration Performance of Bamboo Bundle/Wood Veneer Composite Floor Slabs for Joist-Type Floor Coverings

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