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http://dx.doi.org/10.4334/JKCI.2002.14.2.180

Pseudo Dynamic Test for the Seismic Performance Enhancement of Circular RC Bridge Piers Retrofitted with Fibers  

정영수 (중앙대학교 건설대학 토목공학과)
박종협 (중앙대학교 건설대학 토목공학과)
박희상 (중앙대학교 건설대학 토목공학과)
조창백 (중앙대학교 건설대학 토목공학과)
Publication Information
Journal of the Korea Concrete Institute / v.14, no.2, 2002 , pp. 180-189 More about this Journal
Abstract
The objective of this experimental research is to assess the seismic performance of circular RC bridge pier specimens retrofitted with fibers which were designed as a prototype of Hagal bridge in the city of Suwon, Korea. Pseudo dynamic test has been done for four(4) test specimens which were nonseismically or seismically designed by the related provisions of the Korea roadway bridge design specification, and four nonseisemic test specimens retrofitted with fibers in the plastic hinge region. Glass and carbon fiber sheets were used for the seismic capacity enhancement of circular test specimens. Important test parameters were confinement steel ratio, load pattern, and retrofitting. The seismic behavior has been analyzed through the displacement ductility, energy analysis, and capacity spectrum. Approximate 7.7 ∼8.7 displacement ductility was observed for nonseismic test specimens retrofitted with fibers subjected to Korea Highway Cooperation artificial earthquake motions. It is concluded that these retrofitted test specimens could have sufficient seismic capacity in the region of moderate seismic zone.
Keywords
pseudo dynamic test; RC bridge pier; retrofit; input ground motion; seismic performance; ductility;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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