Analytical behavior of circular concrete-filled thin-walled steel tubes subjected to bending

Hui Lu, Lin Hai Han, Xiao Ling Zhao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

104 Citations (Scopus)


This paper presents a finite element analysis (FEA) modeling to study the flexural performance of circular concrete-filled thin-walled steel tubular (CFST) beam. A set of test data was used to verify the FEA modeling; generally, good agreement was achieved. The FEA modeling was then used to investigate the stress and strain distributions across the composite section in the whole loading procedure. The composite action between the steel tube and its concrete core was analyzed. A strut-tie model was proposed for the load transfer mechanism of the circular composite member subjected to pure bending.

Original languageEnglish
Pages (from-to)346-358
Number of pages13
JournalThin-Walled Structures
Issue number3
Publication statusPublished - Mar 2009
Externally publishedYes


  • Beam
  • Bending
  • Composite action
  • Concrete-filled steel tubes (CFST)
  • Finite element analysis (FEA)

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering


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