Overview of Concrete-Filled Composite Plate Shear Wall Systems for Mid- and High-Rise Buildings

Composite plate shear walls/concrete-filled, also known as SpeedCore systems, have been implemented recently as a new seismic force-resisting system for mid- and high-rise buildings. These systems comprise steel plates, tie bars, shear studs, and infill concrete. SpeedCore systems in both uncoupled and coupled configurations have been adopted in ASCE 7-22. These wall systems were initially developed for safety-related nuclear facilities as steel-plate composite (SC) structures and later adopted in building structures. Compared to traditional reinforced concrete (RC) core walls, SpeedCore systems significantly reduce construction time and enhance the economic viability of construction projects. The Rainier Square Tower and the 200 Park Avenue projects are the first implementations of SpeedCorewalls in the world. To date, several experimental and numerical studies have been conducted on SpeedCore systems. This paper presents a brief overview of past research on SpeedCore systems as well as their applications in nuclear power plants and in uncoupled and coupled configurations in building structures, seismic design, and implementation in practice. Additionally, the review aims to identify unresolved issues and remaining challenges, providing insights and recommendations for future research.