TY - GEN
T1 - HYPERBOLIC PARABOLOID SHELLS MADE OF DIAGONAL LAMINATED TIMBER ELEMENTS
AU - Arnold, Matthias
AU - Dietsch, Philipp
AU - Winter, Stefan
N1 - Publisher Copyright:
© (2023) WORLD CONFERENCE ON TIMBER ENGINEERING 2023 (WCTE 2023) All rights reserved.
PY - 2023
Y1 - 2023
N2 - 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.
AB - 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.
KW - diagonal laminated timber (DLT)
KW - hyperbolic paraboloid shell (HP-shell; hypar)
KW - laminate theory
KW - membrane theory
KW - nailed laminated timber (NLT)
KW - semi-rigid connections
KW - torsional stiffness
UR - http://www.scopus.com/inward/record.url?scp=85171781018&partnerID=8YFLogxK
U2 - 10.52202/069179-0483
DO - 10.52202/069179-0483
M3 - Conference contribution
AN - SCOPUS:85171781018
T3 - 13th World Conference on Timber Engineering, WCTE 2023
SP - 3718
EP - 3727
BT - 13th World Conference on Timber Engineering, WCTE 2023
A2 - Nyrud, Anders Q.
A2 - Malo, Kjell Arne
A2 - Nore, Kristine
A2 - Alsen, Knut Werner Lindeberg
A2 - Tulebekova, Saule
A2 - Staehr, Efthymia Ratsou
A2 - Bergh, Gabrielle
A2 - Wuyts, Wendy
PB - World Conference on Timber Engineering (WCTE)
T2 - 13th World Conference on Timber Engineering: Timber for a Livable Future, WCTE 2023
Y2 - 19 June 2023 through 22 June 2023
ER -