Numerical investigation into the performance of cold-formed steel framed shear walls with openings under in-plane lateral loads

Recently, there has been a resurgence in the adoption of lightweight cold-formed steel (CFS) profiles as structural elements low- to mid-rise modular construction. Typically, openings for doors and windows are ever-present front rear elevations where shear walls find their optimal position ensure lateral stability CFS structures. These architectural design features translate into reduced areas load resistance throughout structure. This paper discusses performance framed with under loads through experimental tests numerical simulations. Overall, three wall typologies were designed force transfer around opening (FTAO) tested monotonic (nine total). An advanced finite element analysis (FEA) modelling protocol was elaborated simulate behaviour well interpret physical tests. Evaluation test results validated FEA that demonstrated be reliable predicting strength stiffness failure modes subjected loads. The effects sheathing-to-CFS screw spacing, size number geometry sheathing panels on scrutinized. Subsequently, load-path mappings from developed enabled flow in-plane level system insight more efficient have highlighted. obtained shed light conservative nature AISI S400-15 provisions Type II perforated methods available literature.