Effect of concentrated Butt-Joints on flexural properties of laminated Bamboo-Timber flitch beams

被引：9

作者：

Zhang, Hexin ^{[1
]}

Gharavi, Niaz ^{[1
]}

Wong, Simon H. F. ^{[2
]}

Deng, Yu ^{[3
]}

Bahadori-Jahromi, Ali ^{[4
]}

Limkatanyu, Suchart ^{[5
]}

Qiao, Yao ^{[6
]}

Kuang, J. S. ^{[7
]}

机构：

[1] Edinburgh Napier Univ, Sch Engn & Built Environm, 10 Colinton Rd, Edinburgh EH10 5DT, Midlothian, Scotland

[2] Technol Higher Educ Inst Hong Kong, Dept Construct Technol & Engn, Hong Kong, Peoples R China

[3] Guangxi Univ Sci & Technol, Sch Civil Engn & Architecture, Liuzhou 545006, Peoples R China

[4] Univ West London, Sch Comp & Engn, Dept Civil Engn & Built Environm, London, England

[5] Prince Songkla Univ, Fac Engn, Dept Civil Engn, Hat Yai, Thailand

[6] Pacific Northwest Natl Lab, Richland, WA 99352 USA

[7] Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF SANDWICH STRUCTURES & MATERIALS | 2022年 / 24卷 / 02期

基金：

中国博士后科学基金;

关键词：

Laminated bamboo-timber hybrid beam; bamboo timber flitch beam; butt-joint in laminated bamboo; flexural properties; bamboo-timber composite beam; bio-flitch beam; BENDING PROPERTIES; MODULUS;

D O I：

10.1177/10996362211040103

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper presents the experimental and analytical studies to investigate the effect of concentrated butt-joints on the flexural properties of laminated bamboo-timber flitch beam (BTFB, or bio-flitch beam). The experimental results reveal that the concentrated butt-joints significantly reduce the flexural strength of the BTFB. They also suggest that the failure mechanism of the BTFB with or without concentrated butt-joints are completely different but less evidence shows an obvious effect of the butt-joints on the modulus of elasticity in bending. In addition, laminated bamboo lumber with concentrated butt-joints is found to be unsuitable for structural applications. The analytical predictions are in close agreement with the experimental results that demonstrate the potentials of the proposed analytical model as a forensic investigation instrument to estimate the strength reduction of the structure, if the butt-jointed laminated bamboo was, unfortunately, used in construction.

引用

页码：1226 / 1244

页数：19

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