TY - JOUR
T1 - Racking performance of platform timber framed walls assessed by rigid body relaxation technique
AU - D'Amico, B.
AU - Kermani, A.
AU - Porteous, J.
AU - Dhonju, R.
AU - Zhang, B.
N1 - Acceptance on webpage
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PY - 2016/12/30
Y1 - 2016/12/30
N2 - 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.
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.
KW - platform framing; timber framed walls; raking performance; dynamic relaxation; non-linear analysis
U2 - 10.1016/j.conbuildmat.2016.10.106
DO - 10.1016/j.conbuildmat.2016.10.106
M3 - Article
VL - 129
SP - 148
EP - 158
JO - Construction and Building Materials
JF - Construction and Building Materials
SN - 0950-0618
ER -