Flexural Performance of Laminated Bamboo Lumber Beams
This study investigated the flexural performance of 20 laminated bamboo beam specimens. The load-strain and load-displacement relationships were obtained from tests, and the detailed failure modes, bending strength, and elastic modulus for all specimens are reported. The study demonstrates the follo...
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North Carolina State University
2015-12-01
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doaj-faada50e6c594e78b693035c9ebf3b3f2020-11-24T21:22:29ZengNorth Carolina State UniversityBioResources1930-21261930-21262015-12-0111192994310.15376/biores.11.1.929-943Flexural Performance of Laminated Bamboo Lumber BeamsHai-tao Li0Andrew John Deeks1Qisheng Zhang2Gang Wu3College of Civil Engineering, Nanjing Forestry University; College of Civil Engineering, Southeast University; Collaborative Innovation Center of Efficient Processing and Utilization of Forestry Resource, Nanjing Forestry University; ChinaCollege of Engineering and Architecture, Dublin University; IrelandCollege of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China; ChinaCollege of Civil Engineering, Southeast University, Nanjing, 210096, China; ChinaThis study investigated the flexural performance of 20 laminated bamboo beam specimens. The load-strain and load-displacement relationships were obtained from tests, and the detailed failure modes, bending strength, and elastic modulus for all specimens are reported. The study demonstrates the following points: all the beams displayed an initial elastic phase, non-linear deformation, and then brittle failure initiated by rupture on the tension side of the beam. The elastic moduli for compression and tension of the laminated bamboo were the same, and the strain was distributed linearly across the cross-section of the beams during the testing process. There were no obvious width effects on the ultimate strain or bending strength of the laminated bamboo beam. A tri-linear constitutive model is proposed to represent the behaviour of the laminated bamboo under bending, which is shown to reproduce the load-strain and load-displacement responses of the beams very well. In addition, a calculation formula for the ultimate bending moment is proposed.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_1_929_Li_Flexural_Performance_Laminated_Bamboo_Lumber_BeamsDeflectionLaminated bamboo lumber beamUltimate loadFlexural performance |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hai-tao Li Andrew John Deeks Qisheng Zhang Gang Wu |
spellingShingle |
Hai-tao Li Andrew John Deeks Qisheng Zhang Gang Wu Flexural Performance of Laminated Bamboo Lumber Beams BioResources Deflection Laminated bamboo lumber beam Ultimate load Flexural performance |
author_facet |
Hai-tao Li Andrew John Deeks Qisheng Zhang Gang Wu |
author_sort |
Hai-tao Li |
title |
Flexural Performance of Laminated Bamboo Lumber Beams |
title_short |
Flexural Performance of Laminated Bamboo Lumber Beams |
title_full |
Flexural Performance of Laminated Bamboo Lumber Beams |
title_fullStr |
Flexural Performance of Laminated Bamboo Lumber Beams |
title_full_unstemmed |
Flexural Performance of Laminated Bamboo Lumber Beams |
title_sort |
flexural performance of laminated bamboo lumber beams |
publisher |
North Carolina State University |
series |
BioResources |
issn |
1930-2126 1930-2126 |
publishDate |
2015-12-01 |
description |
This study investigated the flexural performance of 20 laminated bamboo beam specimens. The load-strain and load-displacement relationships were obtained from tests, and the detailed failure modes, bending strength, and elastic modulus for all specimens are reported. The study demonstrates the following points: all the beams displayed an initial elastic phase, non-linear deformation, and then brittle failure initiated by rupture on the tension side of the beam. The elastic moduli for compression and tension of the laminated bamboo were the same, and the strain was distributed linearly across the cross-section of the beams during the testing process. There were no obvious width effects on the ultimate strain or bending strength of the laminated bamboo beam. A tri-linear constitutive model is proposed to represent the behaviour of the laminated bamboo under bending, which is shown to reproduce the load-strain and load-displacement responses of the beams very well. In addition, a calculation formula for the ultimate bending moment is proposed. |
topic |
Deflection Laminated bamboo lumber beam Ultimate load Flexural performance |
url |
http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_1_929_Li_Flexural_Performance_Laminated_Bamboo_Lumber_Beams |
work_keys_str_mv |
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