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The Impact and Modelling of Concentrated Butt-Joints on Vertically Laminated Bamboo-Timber Hybrid Bio-Flitch Beams

Zhang, Hexin; Gharavi, Niaz; Wong, Simon H.F.; Deng, Yu; Bahadori-Jahromi, Ali; Limkatanyu, Suchart; Qiao, Yao; Kuang, J.S.

Authors

Niaz Gharavi

Simon H.F. Wong

Yu Deng

Ali Bahadori-Jahromi

Suchart Limkatanyu

Yao Qiao

J.S. Kuang



Abstract

This paper presents the experimental and analytical studies to investigate the impact of concentrated laminated bamboo butt-joints on the flexural properties of vertically laminated bamboo-timber hybrid beams (VLHBs, or flitch beam). The experimental results reveal that the concentrated butt-joints significantly reduce the flexural strength of the VLHB. They also suggest that the failure mechanism of the VLHBs with or without concentrated butt-joints are completely different. In addition, laminated bamboo lumber with concentrated butt-joints was found to be unsuitable for structural applications. The analytical estimations show close agreement with the experimental results. However, due to the layout of the sample VLHB, the experimental study cannot confirm the impact of the butt-joints on the modulus of elasticity in bending.

Working Paper Type Working Paper
Publication Date Jul 26, 2021
Deposit Date Jan 28, 2022
Publicly Available Date Jan 31, 2022
Keywords Vertically laminated bamboo-timber hybrid beam, bamboo timber flitch beam, butt-joint in laminated bamboo, flexural properties of bamboo-timber composite beam, bamboo-timber composite beam
Public URL http://researchrepository.napier.ac.uk/Output/2839188
Publisher URL https://doi.org/10.21203/rs.3.rs-752107/v1

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