HYPERBOLIC PARABOLOID SHELLS MADE OF DIAGONAL LAMINATED TIMBER ELEMENTS

Matthias Arnold, Philipp Dietsch, Stefan Winter

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This paper deals with the design, calculation, and construction of hyperbolic paraboloid shells made from mass timber elements. Considering the geometrical definition, hyperbolic paraboloid shells can be described as doubly ruled surfaces and can therefore be assembled from twisted rectangular plates. The membrane theory of the hyperbolic paraboloid shell is derived and compared to previous analytical approaches. A challenge is the realization of the shell using the orthotropic material timber. Therefore, the torsional stiffness of multi-layered mass timber elements is determined by means of analytical and experimental investigations. Taking into account the semi-rigid connection between the layers, resulting in additional shear deformations, nailed and diagonal laminated timber elements are investigated towards the construction of HP-shells.

Original languageEnglish
Title of host publication13th World Conference on Timber Engineering, WCTE 2023
EditorsAnders Q. Nyrud, Kjell Arne Malo, Kristine Nore, Knut Werner Lindeberg Alsen, Saule Tulebekova, Efthymia Ratsou Staehr, Gabrielle Bergh, Wendy Wuyts
PublisherWorld Conference on Timber Engineering (WCTE)
Pages3718-3727
Number of pages10
ISBN (Electronic)9781713873297
DOIs
StatePublished - 2023
Event13th World Conference on Timber Engineering: Timber for a Livable Future, WCTE 2023 - Oslo, Norway
Duration: 19 Jun 202322 Jun 2023

Publication series

Name13th World Conference on Timber Engineering, WCTE 2023
Volume6

Conference

Conference13th World Conference on Timber Engineering: Timber for a Livable Future, WCTE 2023
Country/TerritoryNorway
CityOslo
Period19/06/2322/06/23

Keywords

  • diagonal laminated timber (DLT)
  • hyperbolic paraboloid shell (HP-shell; hypar)
  • laminate theory
  • membrane theory
  • nailed laminated timber (NLT)
  • semi-rigid connections
  • torsional stiffness

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