As a Distinct Seismic Force-Resisting System in ASCE/SEI 7-22

Coupled composite plate shear walls/concrete-filled (coupled C-PSW/CFs), known as the SpeedCore system by the American Institute of Steel Construction (AISC), is a non-proprietary composite solution for the design of mid- to high-rise buildings. The coupled C-PSW/CF system is a revolutionary modular system that reduces the construction schedule considerably. The coupled C-PSW/CF system provides adequate lateral stiffness, capacity, and ductility (deformation capacity) needed to be considered as a primary seismic force-resisting system. This structural system is an alternative to conventional coupled reinforced concrete walls in the wind or seismic design of buildings. A typical coupled C-PSW/CF system using planar C-PSW/CFs and composite coupling beams (CBs) is shown in Figure 1.