Structural behaviour of tapered concrete-filled steel composite(TCFSC) columns subjected to eccentric loading

Alireza Bahrami, Wan Hamidon, Wan Hamidon Wan Badaruzzaman, Siti Aminah Osman

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper deals with the structural behaviour of tapered concrete-filled steel composite (TCFSC) columns under eccentric loading. Finite element software LUSAS is used to perform the nonlinear analyses to predict the structural behaviour of the columns. Results from the finite element modelling and existing experimental test are compared to verify the accuracy of the modelling. It is demonstrated that they correlate reasonably well with each other; therefore, the proposed finite element modelling is absolutely accurate to predict the structural behaviour of the columns. Nonlinear analyses are carried out to investigate the behaviour of the columns where the main parameters are: (1) tapered angle (from 0o to 2.75o); (2) steel wall thickness (from 3 mm to 4 mm); (3) load eccentricity (15 mm and 30 mm); (4) L/H ratio (from 10.67 to 17.33); (5) concrete compressive strength (from 30 MPa to 60 MPa); (6) steel yield stress (from 250 MPa to 495 MPa). Results are depicted in the form of load versus mid-height deflection plots. Effects of various tapered angles, steel wall thicknesses, and L/H ratios on the ultimate load capacity, ductility and stiffness of the columns are studied. Effects of different load eccentricities, concrete compressive strengths and steel yield stresses on the ultimate load capacity of the columns are also examined. It is concluded from the study that the parameters considerably influence the structural behaviour of the columns.

Original languageEnglish
Pages (from-to)403-426
Number of pages24
JournalComputers and Concrete
Volume9
Issue number6
Publication statusPublished - Jun 2012

Fingerprint

Concretes
Steel
Composite materials
Loads (forces)
Compressive strength
Yield stress
Ductility
Stiffness

Keywords

  • Concrete compressive strength
  • Ductility
  • Eccentric loading
  • Finite element
  • Nonlinear analysis
  • Steel yield stress
  • Stiffness
  • Tapered concrete-filled steel composite column
  • Ultimate load capacity

ASJC Scopus subject areas

  • Computational Mechanics

Cite this

Structural behaviour of tapered concrete-filled steel composite(TCFSC) columns subjected to eccentric loading. / Bahrami, Alireza; Hamidon, Wan; Wan Badaruzzaman, Wan Hamidon; Osman, Siti Aminah.

In: Computers and Concrete, Vol. 9, No. 6, 06.2012, p. 403-426.

Research output: Contribution to journalArticle

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