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http://dx.doi.org/10.12989/scs.2016.20.6.1259

Seismic performances of centrifugally-formed hollow-core precast columns with multi-interlocking spirals  

Hwang, Jin-Ha (Department of Architectural Engineering, University of Seoul)
Lee, Deuck Hang (Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign)
Oh, Jae Yuel (Department of Architectural Engineering, University of Seoul)
Choi, Seung-Ho (Department of Architectural Engineering, University of Seoul)
Kim, Kang Su (Department of Architectural Engineering, University of Seoul)
Seo, Soo-Yeon (Department of Architectural Engineering, Korea University of Transportation)
Publication Information
Steel and Composite Structures / v.20, no.6, 2016 , pp. 1259-1274 More about this Journal
Abstract
A precast composite column system has been developed in this study by utilizing multi interlocking spiral steel into a centrifugally-formed hollow-core precast (CHPC) column. The proposed hybrid column system can have enhanced performances in the composite interaction behavior between the hollowed precast column and cast-in-place (CIP) core-filled concrete, the lap splice performance of bundled bars, and the confining effect of concrete. In the experimental program, reversed cyclic loading tests were conducted on a conventional reinforced concrete (RC) column fabricated monolithically, two CHPC columns filled with CIP concrete, and two steel-reinforced concrete (SRC) columns. It was confirmed that the interlocking spirals was very effective to enhance the structural performance of the CHPC column, and all the hollow-core precast column specimens tested in this study showed good seismic performances comparable to the monolithic control specimen.
Keywords
hollow column; precast concrete; interlocking spiral; seismic behavior; composite;
Citations & Related Records
Times Cited By KSCI : 10  (Citation Analysis)
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