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research article

A 3D printed bio-composite removable connection system for bamboo spatial structures

van Wassenhove, Romain Pascal T  
•
De Laet, Lars
•
Vassilopoulos, Anastasios  
May 4, 2021
Composite Structures

A 3D printed bio-composite removable connection system for bamboo space structures is introduced in this paper. The system consists of a removable clipping connection for raw bamboo structures, adapted to the European market. The use of parametric design and 3D printing enables to have both design and production processes adapted to the non-uniform bamboo culm dimensions, while being standardisable. The resulting design possibilities are very large due to the high adaptability of the whole process. The efficiency of the introduced connection system has been validated experimentally. Standardized specimens of the bio-composite material, a connection detail (clip), and a structural component were examined experimentally to validate the design. A pyramidal structure made of bamboo culms of 30 mm of diameter and 4 mm in thickness was able to sustain a load of 7 kN in compression, proving the relevance of the proposed connection system. A finite element model was developed to model the clip behaviour and successfully compared to the experimental results.

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Type
research article
DOI
10.1016/j.compstruct.2021.114047
Author(s)
van Wassenhove, Romain Pascal T  
De Laet, Lars
Vassilopoulos, Anastasios  
Date Issued

2021-05-04

Published in
Composite Structures
Volume

269

Article Number

114047

Subjects

Bamboo structures

•

Parametric design

•

Sustainable structures

•

Demountable structures

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Free-formed structures

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Additive manufacturing

•

Bio-composites

Note

This is an Open Access article under the terms of the Creative Commons Attribution License

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
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Available on Infoscience
June 25, 2021
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/179535
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