RECENT DEVELOPMENT IN CLT CONNECTIONS PART I: IN-PLANE SHEAR CONNECTION FOR CLT BRACING ELEMENTS UNDER STATIC LOADS
Keywords:
CLT, Contact joints, In-plane shear connection, Wall and floor diaphragms, Bracing elementsAbstract
Cross-laminated timber (CLT) is already being used successfully in residential, commercial, and industrial buildings. The use of computerized numerical control (CNC) automatic processing machines and high degree of prefabrication in combination with relatively large elements lead to short erection time on building site and to potentially cost-effective constructions. High in-plane shear strength and stiffness of the CLT itself make CLT members especially suited for bracing elements with in-plane loads. However, some available connection techniques show limited load-carrying capacities and stiffness values in comparison with the shear capacity of CLT. To better use the potential of CLT under in-plane loading, so called contact joints were developed with increased stiffness and load-carrying capacities using CNC automatic processing machines.
References
Enders-Comberg M, Frese M, Blass HJ (2015) Beech LVL
for trusses and reinforced glulam. Bautechnik 92, Heft 1,
Pages 9-17. DOI: 10.1002/bate.201400076 (Article in
German).
Heimeshoff B, Eglinger W (1981) Einspannung von
Holzst ¨utzen durch Verguss im Betonfundament. Untersuchungsstufe I. Lehrstuhl f ¨ur Holzbau und Baukonstruktionen, Technische Universit¨at M¨unchen. IRB Verlag, Stuttgart.
Kogl J, Maderebner R (2013) System connectors for crosslaminated timber panels. In 19. Internationales Holzbau-
Forum, Garmisch-Partenkirchen.
Mahler P (2016) Experimentelle und numerische Untersuchung
zur Tragfahigkeit von Kontaktverbindungen in
Brettsperrholz (in German). Master’s thesis, July 2016,
Karlsruhe Institute of Technology, Timber Engineering
and Building Construction, Karlsruhe.
Polastri A, Giongo I, Pacchioli S, Piazza M(2016) Structural
analysis of CLT multi-storey buildings assembled with the
innovative X-RAD connections system: Case-study of
a tall building. In Proc. 2016 World Conference on Timber
Engineering (WCTE), August 22-25, World Conference
on Timber Engineering, Vienna, Austria.
Schmidt T, Blass HJ (2016) Contact joints in engineered
wood products. In Proc. 2016 World Conference on
Timber Engineering (WCTE), August 22-25, World
Conference on Timber Engineering, Vienna, Austria.
Starossek U (2005) Progressiver Kollaps von Bauwerken.
Beton-und Stahlbetonbau, Sonderdruck, Heft 4, Pages 3-
Stecher G, Kogl J, BeikircherW(2014) Mechanical behavior
of dove-tail connections for Cross Laminated Timber wall
elements. In Proc. 2014 World Conference on Timber
Engineering (WCTE), August 10-14, World Conference
on Timber Engineering, Quebec City, Canada.
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