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

Jin Ha Hwang, Deuck Hang Lee, Jae Yuel Oh, Seung Ho Choi, Kang Su Kim, Soo Yeon Seo

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

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 steelreinforced 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.

Original languageEnglish
Pages (from-to)1259-1274
Number of pages16
JournalSteel and Composite Structures
Volume20
Issue number6
DOIs
Publication statusPublished - Apr 30 2016
Externally publishedYes

Keywords

  • Composite
  • Hollow column
  • Interlocking spiral
  • Precast concrete
  • Seismic behavior

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Metals and Alloys

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