Zusammenfassung
A significant deficiency in many existing nonductile reinforced concrete
frames is the inability of the columns to undergo significant deformations
while maintaining their load-carrying capacity. As a result, relatively
brittle modes of column failure, accompanied by soft story structural
failure mechanisms, are possible. Providing additional confinement
to the columns allows them to behave in a more ductile manner. The
study reported herein investigates the use of carbon fiber-reinforced
polymer (CFRP) composite jackets as a method of retrofitting existing
nonductile reinforced concrete building columns. A method of designing
fiber-reinforced polymer composite jackets for columns to achieve
the desired flexural behavior is presented and verified through a
full-scale experimental study.
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