All single and multi-story structures must resist lateral forces induced by wind or seismic events and transfer them from the roof and floor levels to the supporting soil below the foundation. To protect the structural integrity and safety of the occupants, a continuous load path must be present. A structural system with a series of interconnected structural elements (roofs, floors, beams, columns, load-bearing walls, connections, footings, etc.) forms the basis for a good load path. Lateral forces are often carried by components such as shear walls, roof/floor diaphragms, frames, or a combination thereof, to transfer forces from the point of origin to the foundation.
A shear wall is commonly used in buildings made of wood frame, reinforced masonry, reinforced concrete, etc., to resist lateral forces parallel to the plane of the wall (i.e. in-plane forces). Shear walls are designed to resist uplift (wind) and overturning (wind and/or seismic) forces. The traditional wood-frame shear wall system includes various types of straps and holds downs. Because of issues related to wood shrinkage, building settlement, and growing trends towards designing and building multi-story structures, alternative shear wall systems with threaded rod, threaded rod plus shrinkage compensation device, prestressed cable, etc. are developed and is widely used in the wood frame industry.
QuickTies™ is used to resist uplift loads from the roof system, shear at the bottom plate, and overturning forces at the ends of shear walls. W