Semi-rigid operation of connection in timber engineering

AbstractThe effects of variation in humidity coupled with long-term loading give rise to dimensional changes and creep effects in wooden elements. Many wooden products such as cross-laminated timber (CLT) plates as well as many common structural details used in timber engineering are vulnerable to variations in moisture content (MC) as well as to creep effects. This paper addresses the long-term effects in the material modelling of timber by the finite element method (FEM), also considering the viscoelastic and mechanosorptive effects in wood. The model was calibrated using both relaxation tests and creep tests. The results from both long-term compression perpendicular- to-grain tests (relaxation and creep) performed on glulam (GL30c) from Norway spruce (Picea abies) with moisture control are presented in this paper. The material model considers the effect of loading and moisture changes. For realistic comparison, the pith location of each lamella was specified in the numerical analyses. Ultimately, a comparison between the numerical results and the experimental results has been provided, exhibiting an overall good estimation of timber response.

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Three-Dimensional Numerical Analysis of Dowel-Type Connections in Timber Engineering

Computational Structural Engineering ◽

10.1007/978-90-481-2822-8_68 ◽

2009 ◽

pp. 619-625 ◽

Cited By ~ 1

Author(s):

Michael Kaliske ◽

Eckart Resch

Keyword(s):

Numerical Analysis ◽

Three Dimensional ◽

Timber Engineering

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What we do and what we need to do in timber engineering

Wood Science and Technology ◽

10.1007/bf00353243 ◽

1989 ◽

Vol 23 (4) ◽

pp. 289-293

Author(s):

R. O. Foschi

Keyword(s):

Timber Engineering

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Trends and developments in timber engineering

Construction and Building Materials ◽

10.1016/0950-0618(92)90001-f ◽

1992 ◽

Vol 6 (3) ◽

pp. 131-132

Author(s):

J. Marcroft

Keyword(s):

Timber Engineering

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Elastic layer model for application to crack propagation problems in timber engineering

Wood Science and Technology ◽

10.1007/s00226-005-0033-x ◽

2005 ◽

Vol 40 (4) ◽

pp. 275-290 ◽

Cited By ~ 8

Author(s):

Jean-Luc Coureau ◽

Per Johan Gustafsson ◽

Kent Persson

Keyword(s):

Crack Propagation ◽

Elastic Layer ◽

Layer Model ◽

Timber Engineering

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Pre-applicable structural adhesives for timber engineering: Glued-in G-FRP rods

International Journal of Adhesion and Adhesives ◽

10.1016/j.ijadhadh.2015.12.034 ◽

2016 ◽

Vol 67 ◽

pp. 121-127 ◽

Cited By ~ 12

Author(s):

Michael Adam ◽

Andreas Lühring ◽

Matthias Popp ◽

Simon Fecht ◽

Till Vallée

Keyword(s):

Structural Adhesives ◽

Timber Engineering

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Glulam rivet connections under eccentric loading

Canadian Journal of Civil Engineering ◽

10.1139/l87-092 ◽

1987 ◽

Vol 14 (5) ◽

pp. 621-630 ◽

Cited By ~ 3

Author(s):

Erol Karacabeyli ◽

Ricardo O. Foschi

Keyword(s):

Failure Modes ◽

Experimental Studies ◽

Design Guidelines ◽

Bearing Failure ◽

Element Analysis ◽

Theoretical Predictions ◽

Failure Loads ◽

Fracture Theory ◽

Timber Engineering ◽

Type Of Failure

Results from theoretical and experimental studies on the strength of glulam rivet connections under eccentric loading are presented. Two failure modes are studied: (1) rivet yielding in bending with simultaneous bearing failure of the wood under the rivet's shank and (2) wood failure around the rivet cluster. The latter is studied using brittle fracture theory and a finite element analysis of the stress distribution in the wood around the rivets.Experimental results are shown to compare well with theoretical predictions for failure loads and type of failure, and design guidelines are proposed. Key words: fasteners, wood connectors, glued-laminated, nails, timber engineering.

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