Development of a nonlinear model for an internally confined hollow CFT column

Taek Hee Han, Chang Soo Lee, Jin Ook Kang, Young Jong Kang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Although a CFT (Concrete Filled Steel Tube) column has superior moment capacity to a reinforced concrete column, the CFT column is not popularly used as a pier because the high constructing cost. To reduce the material cost and the self-eight of the CFT column, a new type CFT column, which has a hollow section and an internal steel tube, was developed. This internal tube makes concrete to be under triaxial confinement. By the internal confinement, the developed ICH CFT (Internally Confined Hollow CFT) column has enhanced strength and ductility. In this research, a nonlinear column model for an ICH CFT column was developed with considerations of confining effects. Analysis results show that an ICH CFT column has enhanced strength and the developed column model is a reasonable model.

Original languageEnglish
Title of host publicationProceedings of 8th Pacific Structural Steel Conference - Steel Structures in Natural Hazards, PSSC 2007
Pages313-318
Number of pages6
Publication statusPublished - 2007
Event8th Pacific Structural Steel Conference - Steel Structures in Natural Hazards, PSSC 2007 - Wairakei, New Zealand
Duration: 2007 Mar 132007 Mar 16

Publication series

NameProceedings of 8th Pacific Structural Steel Conference - Steel Structures in Natural Hazards, PSSC 2007
Volume1

Other

Other8th Pacific Structural Steel Conference - Steel Structures in Natural Hazards, PSSC 2007
CountryNew Zealand
CityWairakei
Period07/3/1307/3/16

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Han, T. H., Lee, C. S., Kang, J. O., & Kang, Y. J. (2007). Development of a nonlinear model for an internally confined hollow CFT column. In Proceedings of 8th Pacific Structural Steel Conference - Steel Structures in Natural Hazards, PSSC 2007 (pp. 313-318). (Proceedings of 8th Pacific Structural Steel Conference - Steel Structures in Natural Hazards, PSSC 2007; Vol. 1).