Frictional behaviour of timber-concrete contact pairs

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Frictional behaviour of timber-concrete contact pairs. / Jaaranen, Joonas; Fink, Gerhard.

In: Construction and Building Materials, Vol. 243, 118273, 20.05.2020.

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@article{72153deba2c44635aac3bdb6c40c149b,
title = "Frictional behaviour of timber-concrete contact pairs",
abstract = "While friction plays an important role in many timber-concrete composite structures, it has been studied only to a limited extent and current knowledge is not comprehensive enough for rigorous modelling of e.g. timber-concrete connections. The purpose of this study is to fill part of this gap by investigating timber to concrete friction under cyclic loading experimentally. The tests were conducted with small-scale double-sided shear specimens. The materials included surface treated and untreated edge-faces of coniferous laminated veneer lumber and birch plywood combined with high-strength concrete grout that was cast directly on the timber parts. The initial shear strengths are evaluated by the Mohr-Coulomb criterion, and the static and kinetic friction coefficients are determined for each load cycle. Based on the results, influence of the cumulative displacement, the wood product, the grain orientations and the surface treatment on the initial shear strength and the friction coefficients are analysed. The tests also showed interlocking that is likely related to the matching surfaces created by prior de-bonding. As this interlocking affects the results, it was also investigated.",
keywords = "Birch plywood, Cyclic testing, Initial shear strength, Kinetic friction, Laminated veneer lumber, Static friction, Surface treatment, Timber-concrete",
author = "Joonas Jaaranen and Gerhard Fink",
year = "2020",
month = "5",
day = "20",
doi = "10.1016/j.conbuildmat.2020.118273",
language = "English",
volume = "243",
journal = "Construction and Building Materials",
issn = "0950-0618",

}

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TY - JOUR

T1 - Frictional behaviour of timber-concrete contact pairs

AU - Jaaranen, Joonas

AU - Fink, Gerhard

PY - 2020/5/20

Y1 - 2020/5/20

N2 - While friction plays an important role in many timber-concrete composite structures, it has been studied only to a limited extent and current knowledge is not comprehensive enough for rigorous modelling of e.g. timber-concrete connections. The purpose of this study is to fill part of this gap by investigating timber to concrete friction under cyclic loading experimentally. The tests were conducted with small-scale double-sided shear specimens. The materials included surface treated and untreated edge-faces of coniferous laminated veneer lumber and birch plywood combined with high-strength concrete grout that was cast directly on the timber parts. The initial shear strengths are evaluated by the Mohr-Coulomb criterion, and the static and kinetic friction coefficients are determined for each load cycle. Based on the results, influence of the cumulative displacement, the wood product, the grain orientations and the surface treatment on the initial shear strength and the friction coefficients are analysed. The tests also showed interlocking that is likely related to the matching surfaces created by prior de-bonding. As this interlocking affects the results, it was also investigated.

AB - While friction plays an important role in many timber-concrete composite structures, it has been studied only to a limited extent and current knowledge is not comprehensive enough for rigorous modelling of e.g. timber-concrete connections. The purpose of this study is to fill part of this gap by investigating timber to concrete friction under cyclic loading experimentally. The tests were conducted with small-scale double-sided shear specimens. The materials included surface treated and untreated edge-faces of coniferous laminated veneer lumber and birch plywood combined with high-strength concrete grout that was cast directly on the timber parts. The initial shear strengths are evaluated by the Mohr-Coulomb criterion, and the static and kinetic friction coefficients are determined for each load cycle. Based on the results, influence of the cumulative displacement, the wood product, the grain orientations and the surface treatment on the initial shear strength and the friction coefficients are analysed. The tests also showed interlocking that is likely related to the matching surfaces created by prior de-bonding. As this interlocking affects the results, it was also investigated.

KW - Birch plywood

KW - Cyclic testing

KW - Initial shear strength

KW - Kinetic friction

KW - Laminated veneer lumber

KW - Static friction

KW - Surface treatment

KW - Timber-concrete

UR - http://www.scopus.com/inward/record.url?scp=85078967361&partnerID=8YFLogxK

U2 - 10.1016/j.conbuildmat.2020.118273

DO - 10.1016/j.conbuildmat.2020.118273

M3 - Article

AN - SCOPUS:85078967361

VL - 243

JO - Construction and Building Materials

JF - Construction and Building Materials

SN - 0950-0618

M1 - 118273

ER -

ID: 41057192