Seismic Performance Evaluation of Steel Moment Frames Infilled with Plywood Shear Walls

This paper presents seismic performance evaluation and design of timber-steel hybrid shear walls consisting of steel moment frames infilled with plywood shear walls. This hybrid system can be easily incorporated into multi-storey light timber framed (LTF) buildings using construction materials that are readily available in the NZ construction market. A finite element (FE) model of the hybrid wall system was developed with its critical input parameters calibrated by connection test database of nailed plywood-timber connections as well as bolted and screwed timber-steel interface connections. The FE model was validated against existing hybrid wall testing data and then used to conduct a parametric study to establish shear wall response database of the hybrid walls with various configurations in terms of steel member sizes, nail sizes, and plywood thicknesses.

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