NEHRP Clearinghouse
- Title
- Cyclic Testing of Braces Laterally Restrained by Steel Studs to Enhance Performance During Earthquakes.
- File
- PB2005102197.pdf
- Author(s)
- Celik, O. C.; Berman, J. W.; Bruneau, M.
- Source
- National Science Foundation, Arlington, VA., March 16, 2004, 256 p.
- Identifying Number(s)
- MCEER-04-0003
- Abstract
- This report describes an experimental investigation into the seismic behavior and efficiency of using braced steel infills for steel framed buildings. Cold formed steel studs (CFSS), typically used in nonstructural partition walls, were studied to determine if they could be used to laterally restrain braces against buckling and thus enhance their seismic performance. Four specimens were designed and cyclically tested: single square tube braces with and without vertical CFSS and rectangular solid bar X braces with and without CFSS members. The effects of KL/r ratio, bracing configuration and cross-sectional type of braces were studied, as well as behavior characteristics of the specimens with an emphasis on hysteretic energy dissipation. As a result, the CFSS members showed promise for use in new buildings or as a retrofitting technique in buildings that lack strength, lateral stiffness and ductility.
- Keywords
- Braces; Hysteretic behavior; Literature review; Cyclic tests; Ductility; Cold formed steel studs; Earthquake engineering; Braced steel infills; Energy dissipation; Earthquakes; Mechanical properties; Displacement; Strength (Mechanics); Stiffness; Steel frames; Performance; Studs