In plane Shear Strength of Cross Laminated Timber (CLT): Test Configuration, Quantification and influencing Parameters

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandBegutachtung

Abstract

Cross laminated timber (CLT) has become a well-known and widely applied two-dimensional,
engineered timber product worldwide. It constitutes a rigid composite of an odd number of orthogonal and glued layers. Focusing on a single glued node loaded in plane in shear and composed of two crossed board segments and the adhesive layer in-between, in principle three types of shear
mechanisms can be distinguished: mechanism I “net-shear” (shearing perpendicular to grain),
mechanism II “torsion” and mechanism III “gross-shear” (shearing parallel to grain). In fact, while
having generally accepted values for the resistance against mechanism II and good estimates for
mechanism III the resistance against “net-shear” (mechanism I) is still in discussion. In spite of
numerous investigations on nodes and on whole CLT elements in the past, a common sense
concerning the test procedure, the consideration and handling of distinct influencing parameters and
the quantification of the shear strength are open.
We focus on the in plane shear resistance of single nodes according to mechanism I. We (i) propose a
test configuration for reliable determination of the shear strength, (ii) determine the shear resistance in case of shear loads perpendicular to grain, (iii) discuss influences of some parameters on the shear
strength of single nodes, and (iv) give a brief outlook concerning the resistance of CLT elements
against shear loads in plane
Originalspracheenglisch
TitelINTERNATIONAL COUNCIL FOR RESEARCH AND INNOVATION IN BUILDING AND CONSTRUCTION WORKING COMMISSION W18 - TIMBER STRUCTURES CIB-W18
ErscheinungsortKarslruhe, Germany
Herausgeber (Verlag).
PublikationsstatusAngenommen/In Druck - 2013
VeranstaltungCIB World Congress - Brisbane, Australien
Dauer: 5 Mai 20139 Mai 2013

Konferenz

KonferenzCIB World Congress
Land/GebietAustralien
OrtBrisbane
Zeitraum5/05/139/05/13

Fields of Expertise

  • Sustainable Systems

Treatment code (Nähere Zuordnung)

  • Theoretical
  • Experimental

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