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research article

Double-layered timber plate shell. International Journal of Space Structures

Robeller, Christopher  
•
Pauly, Mark  
•
Dedijer, Mira  
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December 1, 2017
International Journal of Space Structures

This article presents a new lightweight construction system for doubly curved shells made from timber plates, inspired by the masonry vaults of Eladio Dieste. The system was developed for a specific case-study project, and general applications to other freeform surfaces are being discussed. The shells are built from two interconnected layers of structural wood veneer plates, using integral through-tenon joints for a fast, precise, and simple assembly. This allows for the construction of a series of differently shaped vaults without a costly mold or support structure. Instead, inclined joints cut with a 5-axis computer numerical controlled milling machine embed the correct location and angle between plates into the shape of the parts. This constrains the relative motions between joined parts to one assembly path. To take advantage of the benefits of such connectors, the constrained assembly paths must be considered in the fundamental design of the system, allowing for the insertion of each plate. This imposes additional constraints in the segmentation process of doubly curved shells. In order to meet the requirements and resolve the multi-constraint system, we use a global, nonlinear optimization approach. Developed as a close collaboration between architects, computer scientists and structural engineers, this article includes an experimental analysis of the influence of parametric modifications in the shape of connectors on their load-bearing performance.

  • Details
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Type
research article
DOI
10.1177/0266351117742853
Author(s)
Robeller, Christopher  
Pauly, Mark  
Dedijer, Mira  
Konakovic, Mina  
Weinand, Yves  
Date Issued

2017-12-01

Published in
International Journal of Space Structures
Volume

32

Start page

160

End page

175

Subjects

design for assembly

•

digital fabrication

•

integral attachment

•

shell structures

•

structures

•

timber plate

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
IBOIS  
FunderGrant Number

FNS-NCCR

51NF40-141853

Available on Infoscience
June 24, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/169568
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