Column Seismic Retrofitting Using High-Strength Fiber Jackets
Edward R. Fyfe
Appears on pages(s):
ductility; earthquake-resistant structures; fibers; field tests; glass; reinforcing materials; stiffness; strength; tests; Construction
In 1987, testing began on a concept to use high strength fibers to retrofit columns to increase strength and ductility. The tests were completed on 14 columns at the University of California, San Diego. Columns were tested for confining the lap-splice flexural areas for circular and rectangular columns with increased strength and ductilities in testing of eight or more. Columns were tested for shear-flexural performance (with no lap-splice) with tested increased strength and ductilities of eight or more. The rectangular columns were wrapped in the shape of the rectangle successfully. The University of British Columbia in Vancouver used the wrap system for columns and pier cap retrofit and obtained a ductility of 12. Thirty-two field installations have been completed as of October 1994. Design recommendations and durability testing has been completed.