Flexural Properties of Multiple Bamboo Beams with Connection Joints

Bamboo is a natural material widely used in buildings and bridges that has good mechanical properties. However, the longitudinal connection of bamboo culms is a major problem for the bamboo industry. In this study, sleeve-nailed bamboo specimens were produced, which contained three bamboo pieces. Tw...

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Main Authors: Hui Zhou, Yan Yan, Na Su, Changhua Fang, Huanrong Liu, Xiubiao Zhang, Benhua Fei, Xinxin Ma
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Forests
Subjects:
Online Access:https://www.mdpi.com/1999-4907/13/11/1851
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author Hui Zhou
Yan Yan
Na Su
Changhua Fang
Huanrong Liu
Xiubiao Zhang
Benhua Fei
Xinxin Ma
author_facet Hui Zhou
Yan Yan
Na Su
Changhua Fang
Huanrong Liu
Xiubiao Zhang
Benhua Fei
Xinxin Ma
author_sort Hui Zhou
collection DOAJ
description Bamboo is a natural material widely used in buildings and bridges that has good mechanical properties. However, the longitudinal connection of bamboo culms is a major problem for the bamboo industry. In this study, sleeve-nailed bamboo specimens were produced, which contained three bamboo pieces. Two bamboo pieces with similar diameters were longitudinally joined by inserting a short bamboo culm with a smaller diameter, fixed with nails. The flexural performance of single beams and two-culm beams were studied. The load-displacement curves and fracture behavior of the specimens were investigated. The results show that the flexural bearing capacity of the single connected bamboo specimen was relatively smaller than that of an unconnected one, while the flexural bearing capacity of the two-culm beam was improved significantly. It can be seen that the lateral connection of bamboo specimens can improve the bearing capacity of the combined bamboo culms. This study provides a basis for promoting the application of sleeve-type nailed connections for bamboo.
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spelling doaj.art-dc76185d7750427aa4969be15aea6cf42023-11-24T04:44:16ZengMDPI AGForests1999-49072022-11-011311185110.3390/f13111851Flexural Properties of Multiple Bamboo Beams with Connection JointsHui Zhou0Yan Yan1Na Su2Changhua Fang3Huanrong Liu4Xiubiao Zhang5Benhua Fei6Xinxin Ma7Department of Biomaterials, International Center for Bamboo and Rattan, No. 8 Futong Eastern Street, Chaoyang District, Beijing 100102, ChinaDepartment of Biomaterials, International Center for Bamboo and Rattan, No. 8 Futong Eastern Street, Chaoyang District, Beijing 100102, ChinaCollege of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, ChinaDepartment of Biomaterials, International Center for Bamboo and Rattan, No. 8 Futong Eastern Street, Chaoyang District, Beijing 100102, ChinaDepartment of Biomaterials, International Center for Bamboo and Rattan, No. 8 Futong Eastern Street, Chaoyang District, Beijing 100102, ChinaDepartment of Biomaterials, International Center for Bamboo and Rattan, No. 8 Futong Eastern Street, Chaoyang District, Beijing 100102, ChinaDepartment of Biomaterials, International Center for Bamboo and Rattan, No. 8 Futong Eastern Street, Chaoyang District, Beijing 100102, ChinaDepartment of Biomaterials, International Center for Bamboo and Rattan, No. 8 Futong Eastern Street, Chaoyang District, Beijing 100102, ChinaBamboo is a natural material widely used in buildings and bridges that has good mechanical properties. However, the longitudinal connection of bamboo culms is a major problem for the bamboo industry. In this study, sleeve-nailed bamboo specimens were produced, which contained three bamboo pieces. Two bamboo pieces with similar diameters were longitudinally joined by inserting a short bamboo culm with a smaller diameter, fixed with nails. The flexural performance of single beams and two-culm beams were studied. The load-displacement curves and fracture behavior of the specimens were investigated. The results show that the flexural bearing capacity of the single connected bamboo specimen was relatively smaller than that of an unconnected one, while the flexural bearing capacity of the two-culm beam was improved significantly. It can be seen that the lateral connection of bamboo specimens can improve the bearing capacity of the combined bamboo culms. This study provides a basis for promoting the application of sleeve-type nailed connections for bamboo.https://www.mdpi.com/1999-4907/13/11/1851bamboomultiple-culm beamslongitudinal joint
spellingShingle Hui Zhou
Yan Yan
Na Su
Changhua Fang
Huanrong Liu
Xiubiao Zhang
Benhua Fei
Xinxin Ma
Flexural Properties of Multiple Bamboo Beams with Connection Joints
Forests
bamboo
multiple-culm beams
longitudinal joint
title Flexural Properties of Multiple Bamboo Beams with Connection Joints
title_full Flexural Properties of Multiple Bamboo Beams with Connection Joints
title_fullStr Flexural Properties of Multiple Bamboo Beams with Connection Joints
title_full_unstemmed Flexural Properties of Multiple Bamboo Beams with Connection Joints
title_short Flexural Properties of Multiple Bamboo Beams with Connection Joints
title_sort flexural properties of multiple bamboo beams with connection joints
topic bamboo
multiple-culm beams
longitudinal joint
url https://www.mdpi.com/1999-4907/13/11/1851
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AT changhuafang flexuralpropertiesofmultiplebamboobeamswithconnectionjoints
AT huanrongliu flexuralpropertiesofmultiplebamboobeamswithconnectionjoints
AT xiubiaozhang flexuralpropertiesofmultiplebamboobeamswithconnectionjoints
AT benhuafei flexuralpropertiesofmultiplebamboobeamswithconnectionjoints
AT xinxinma flexuralpropertiesofmultiplebamboobeamswithconnectionjoints