Updated seismic fragility functions for cold-formed steel framed shear walls per FEMA P-58 methodology

Performance-based earthquake engineering (PBEE) provides a robust alternative to traditional design. PBEE enables engineers estimate expected damage, repair costs, and economic losses due downtime for candidate design, potentially leading novel new designs or retrofit solutions. With the increasing application of light-frame structural systems, such as cold-formed steel (CFS) panels, in residential commercial construction, it is necessary develop employ fragility functions these systems enable PBEE. In this regard, set was previously developed by researchers based on series monotonic cyclic tests CFS framed shear walls with wood panel sheathing, flat strap X-bracing, sheet sheathing. Recently, senior author has led development large database wall tests, including 617 conducted last 20 years from 25 primary sources. Based wider database, are re-evaluated. The provide updated knowledge per FEMA P-58 methodology recommended future use.