Nonlinear analysis of short concrete-filled double skin tube columns subjected to axial compressive forces

Hsuan-Teh Hu, Feng Chien Su

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

Proper material constitutive models for concrete-filled double skin tube (CFDST) columns with circular cross-section and subjected to axial compressive forces are proposed and verified against experiment data using the nonlinear finite element program Abaqus. It is shown that CFDST columns can provide a good confining effect for concrete core, especially when the diameter-to-thickness ratios of both the outer and the inner tubes are small. In addition, empirical equations are proposed to predict the lateral confining pressure of the concrete core for CFDST columns. Finally, the axial strengths of the CFDST columns calculated by the proposed formulations are compared with AISC formulations against the experimental data. It has been shown that the proposed formulations are better than the AISC formulations.

Original languageEnglish
Pages (from-to)319-337
Number of pages19
JournalMarine Structures
Volume24
Issue number4
DOIs
Publication statusPublished - 2011 Oct 1

All Science Journal Classification (ASJC) codes

  • Ocean Engineering
  • Mechanical Engineering
  • Materials Science(all)
  • Mechanics of Materials

Fingerprint Dive into the research topics of 'Nonlinear analysis of short concrete-filled double skin tube columns subjected to axial compressive forces'. Together they form a unique fingerprint.

  • Cite this