In-plane shear behaviour of traditional timber walls

Published Date
November 2013, Vol.56:1028–1048, doi:10.1016/j.engstruct.2013.05.017

Author 

• Graça Vasconcelos ^a,,
• Elisa Poletti ^a,1,
• Eunice Salavessa ^b
• Abílio M.P. Jesus ^c
• Paulo B. Lourenço ^a
• Preecha Pilaon ^d

• aISISE, Department of Civil Engineer, University of Minho, Campus de Azurém, 4800-058 Guimaraes, Portugal
• bEngineering Department – ECT, University of Trás-os-Montes e Alto Douro, Apartado 1013, 5001-801 Vila Real, Portugal
• cIDMEC, Engineering Department - ECT, University of Trás-os-Montes e Alto Douro, Apartado 1013, 5001-801 Vila Real , Portugal
• dOffshore Equipment Platform and Pipeline Maintenance Division, PTT Public Company Limited, 59 Moo 8 By-pass Road, Napa, Mueang, 20000 Chon Buri, Thailand

Received 29 September 2012. Revised 27 February 2013. Accepted 2 May 2013. Available online 22 July 2013. 

Highlights

• Half-timbered walls represent a good seismic resistant solution typical of various countries.
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  Traditional timber framed walls present high values of ductility, compared with other construction solutions.
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  The wall’s behaviour depends on the connections, where the damage concentrates.
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  One of the major influences of infill on timber-framed walls is the clear reduction of pinching.

Abstract

The reconstruction of Downtown Lisbon after the 1755 earthquake was based on a novel constructive system of masonry buildings with an internal three-dimensional timber-framed structure named “gaiola pombalina”. This internal structure aimed at improving the global stability of masonry buildings, enhancing their capacity to dissipate energy under seismic loadings. But this structural system is not only typical of Portugal, but constitutes part of the built heritage of various countries. This paper aims at getting experimental insight on the mechanical behaviour of timber-framed walls subjected to in-plane loading, as only scarce information is available in literature, in order to assess their effective performance to seismic actions. To do this, the experimental results of cyclic tests carried out on traditional timber-framed walls with distinct typologies will be analysed, namely (1) unreinforced timber-framed walls without infill; (2) timber-framed walls without infill with Glass Fibre-Reinforced Polymer sheets (GFRP) placed at the connections; (3) timber-framed walls with brick masonry infill.

Keywords

Timber-framed wall

Cyclic tests

Failure mode

Shear resistance

Energy dissipation

Ultimate deformation

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 Table 1

Table 1.

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 Table 2

Table 2.

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