Concrete-filled tubular columns part 2 - Column analysis

V. Gayathri, N. E. Shanmugam, Y. S. Choo

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This paper is concerned with an analytical model for column analysis of concrete-filled tubular beam-columns subjected to the combined action of axial load and monotonic or cyclic bending. A method of segmentation is adopted in the analysis of beam-columns. The flexural and axial rigidities of the beam-column segments are derived from M-P-φ and M-P-ε relations obtained through fibre-analysis explained in Part 1 1 of the paper. Geometric and material nonlinearities are taken into account and incremental equilibrium equations are formulated based on an updated Lagrangian formulation. An incremental-iterative Newton-Raphson iteration technique is adopted to obtain the solution of the equations. The limitation of Newton-Raphson technique in approaching the limit points is overcome by using a generalized stiffness parameter, thereby tracing the post-buckling response. The accuracy of the model is verified by comparing the results with the experimental values available in published literature.

Original languageEnglish
Pages (from-to)479-495
Number of pages17
JournalInternational Journal of Structural Stability and Dynamics
Volume4
Issue number4
Publication statusPublished - Dec 2004
Externally publishedYes

Fingerprint

Axial loads
Rigidity
Buckling
Analytical models
Stiffness
Concretes
Newton-Raphson
Fibers
Postbuckling
Limit Point
Tracing
Monotonic
Analytical Model
Segmentation
Fiber
Nonlinearity
Iteration
Formulation
Model

Keywords

  • Axial rigidity
  • Composite columns
  • Cyclic bending
  • Flexural rigidity
  • Geometric nonlinearity
  • M-P-ε relations
  • M-P-φ relations
  • Material nonlinearity
  • Nonlinear analysis

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering

Cite this

Concrete-filled tubular columns part 2 - Column analysis. / Gayathri, V.; Shanmugam, N. E.; Choo, Y. S.

In: International Journal of Structural Stability and Dynamics, Vol. 4, No. 4, 12.2004, p. 479-495.

Research output: Contribution to journalArticle

Gayathri, V, Shanmugam, NE & Choo, YS 2004, 'Concrete-filled tubular columns part 2 - Column analysis', International Journal of Structural Stability and Dynamics, vol. 4, no. 4, pp. 479-495.
Gayathri, V. ; Shanmugam, N. E. ; Choo, Y. S. / Concrete-filled tubular columns part 2 - Column analysis. In: International Journal of Structural Stability and Dynamics. 2004 ; Vol. 4, No. 4. pp. 479-495.
@article{bb35536daea8465183feb84c2e49a25e,
title = "Concrete-filled tubular columns part 2 - Column analysis",
abstract = "This paper is concerned with an analytical model for column analysis of concrete-filled tubular beam-columns subjected to the combined action of axial load and monotonic or cyclic bending. A method of segmentation is adopted in the analysis of beam-columns. The flexural and axial rigidities of the beam-column segments are derived from M-P-φ and M-P-ε relations obtained through fibre-analysis explained in Part 1 1 of the paper. Geometric and material nonlinearities are taken into account and incremental equilibrium equations are formulated based on an updated Lagrangian formulation. An incremental-iterative Newton-Raphson iteration technique is adopted to obtain the solution of the equations. The limitation of Newton-Raphson technique in approaching the limit points is overcome by using a generalized stiffness parameter, thereby tracing the post-buckling response. The accuracy of the model is verified by comparing the results with the experimental values available in published literature.",
keywords = "Axial rigidity, Composite columns, Cyclic bending, Flexural rigidity, Geometric nonlinearity, M-P-ε relations, M-P-φ relations, Material nonlinearity, Nonlinear analysis",
author = "V. Gayathri and Shanmugam, {N. E.} and Choo, {Y. S.}",
year = "2004",
month = "12",
language = "English",
volume = "4",
pages = "479--495",
journal = "International Journal of Computational Engineering Science",
issn = "0219-4554",
publisher = "World Scientific Publishing Co. Pte Ltd",
number = "4",

}

TY - JOUR

T1 - Concrete-filled tubular columns part 2 - Column analysis

AU - Gayathri, V.

AU - Shanmugam, N. E.

AU - Choo, Y. S.

PY - 2004/12

Y1 - 2004/12

N2 - This paper is concerned with an analytical model for column analysis of concrete-filled tubular beam-columns subjected to the combined action of axial load and monotonic or cyclic bending. A method of segmentation is adopted in the analysis of beam-columns. The flexural and axial rigidities of the beam-column segments are derived from M-P-φ and M-P-ε relations obtained through fibre-analysis explained in Part 1 1 of the paper. Geometric and material nonlinearities are taken into account and incremental equilibrium equations are formulated based on an updated Lagrangian formulation. An incremental-iterative Newton-Raphson iteration technique is adopted to obtain the solution of the equations. The limitation of Newton-Raphson technique in approaching the limit points is overcome by using a generalized stiffness parameter, thereby tracing the post-buckling response. The accuracy of the model is verified by comparing the results with the experimental values available in published literature.

AB - This paper is concerned with an analytical model for column analysis of concrete-filled tubular beam-columns subjected to the combined action of axial load and monotonic or cyclic bending. A method of segmentation is adopted in the analysis of beam-columns. The flexural and axial rigidities of the beam-column segments are derived from M-P-φ and M-P-ε relations obtained through fibre-analysis explained in Part 1 1 of the paper. Geometric and material nonlinearities are taken into account and incremental equilibrium equations are formulated based on an updated Lagrangian formulation. An incremental-iterative Newton-Raphson iteration technique is adopted to obtain the solution of the equations. The limitation of Newton-Raphson technique in approaching the limit points is overcome by using a generalized stiffness parameter, thereby tracing the post-buckling response. The accuracy of the model is verified by comparing the results with the experimental values available in published literature.

KW - Axial rigidity

KW - Composite columns

KW - Cyclic bending

KW - Flexural rigidity

KW - Geometric nonlinearity

KW - M-P-ε relations

KW - M-P-φ relations

KW - Material nonlinearity

KW - Nonlinear analysis

UR - http://www.scopus.com/inward/record.url?scp=10444281506&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=10444281506&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:10444281506

VL - 4

SP - 479

EP - 495

JO - International Journal of Computational Engineering Science

JF - International Journal of Computational Engineering Science

SN - 0219-4554

IS - 4

ER -