Racking performance of platform timber framed walls assessed by rigid body relaxation technique

B. D'Amico; A. Kermani; J. Porteous; R. Dhonju; B. Zhang

doi:10.1016/j.conbuildmat.2016.10.106

Racking performance of platform timber framed walls assessed by rigid body relaxation technique

B. D'Amico, A. Kermani, J. Porteous, R. Dhonju, B. Zhang

Civil Engineering and Environmental Management

Research output: Contribution to journal › Article

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Abstract

A new method to assess the raking performance of Platform timber framed walls, is provided in this study: each component of the unit wall assembly is assumed as rigid, hence allowing to drastically reduce the overall number of DoFs involved within the model. The timber frame in particular, is modelled as a mechanism, having only two DoFs (regardless of the number of studs) corresponding to the horizontal and rotational displacements of the header beam. For a given imposed horizontal displacement Δh, the corresponding racking load P(Δh) is computed by numerical relaxation, allowing to consider a continuous function to represent the load-slip curves of the connections. A comparison of the numerical analysis against laboratory test results is provided, showing the method's capability in predicting the raking strength of the wall, despite the assumed reduced number of DoFs.

Original language	English
Pages (from-to)	148-158
Number of pages	11
Journal	Construction and Building Materials
Volume	129
Early online date	2 Nov 2016
DOIs	https://doi.org/10.1016/j.conbuildmat.2016.10.106
Publication status	Published - 30 Dec 2016

Keywords

platform framing; timber framed walls; raking performance; dynamic relaxation; non-linear analysis

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10.1016/j.conbuildmat.2016.10.106

D'Amico, B. et al (2016) Racking performance of platform timber framed walls assessed by rigid body relaxation technique
© 2016 Elsevier. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Accepted author manuscript, 3.85 MBLicence: CC BY-NC-ND

https://www.napier.ac.uk/research-and-innovation/research-search/outputs/racking-performance-of-platform-timber-framed-walls-assessed-by-rigid-body-relaxation

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D'Amico, B., Kermani, A., Porteous, J., Dhonju, R., & Zhang, B. (2016). Racking performance of platform timber framed walls assessed by rigid body relaxation technique. Construction and Building Materials, 129, 148-158. https://doi.org/10.1016/j.conbuildmat.2016.10.106

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abstract = "A new method to assess the raking performance of Platform timber framed walls, is provided in this study: each component of the unit wall assembly is assumed as rigid, hence allowing to drastically reduce the overall number of DoFs involved within the model. The timber frame in particular, is modelled as a mechanism, having only two DoFs (regardless of the number of studs) corresponding to the horizontal and rotational displacements of the header beam. For a given imposed horizontal displacement Δh, the corresponding racking load P(Δh) is computed by numerical relaxation, allowing to consider a continuous function to represent the load-slip curves of the connections. A comparison of the numerical analysis against laboratory test results is provided, showing the method's capability in predicting the raking strength of the wall, despite the assumed reduced number of DoFs.",

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AU - Dhonju, R.

AU - Zhang, B.

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AB - A new method to assess the raking performance of Platform timber framed walls, is provided in this study: each component of the unit wall assembly is assumed as rigid, hence allowing to drastically reduce the overall number of DoFs involved within the model. The timber frame in particular, is modelled as a mechanism, having only two DoFs (regardless of the number of studs) corresponding to the horizontal and rotational displacements of the header beam. For a given imposed horizontal displacement Δh, the corresponding racking load P(Δh) is computed by numerical relaxation, allowing to consider a continuous function to represent the load-slip curves of the connections. A comparison of the numerical analysis against laboratory test results is provided, showing the method's capability in predicting the raking strength of the wall, despite the assumed reduced number of DoFs.

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