Ultimate behavior of steel cable-stayed bridges - I. Rational ultimate analysis method -

Seungjun Kim, Deok Hee Won, Young Jong Kang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper presents an investigation on the ultimate behavior of steel cable-stayed bridges. In general, various nonlinear factors affect the global behavior of cable-stayed bridges, such as material nonlinearities, cable-sag effect, beam-column effect, large displacement effect, and girder-mast-cable interaction. These effects also affect the ultimate behavior of cable-stayed bridges. Therefore, a rational analysis method should be performed to study the ultimate behavior of cable-stayed bridges. Because of various nonlinearities, the analysis should be based on the theory of nonlinear finite element analysis. Moreover, rational ultimate analysis can reflect characteristics of the design and construction of cable-stayed bridges. In this study, a rational ultimate analysis method for steel cable-stayed bridges is developed and proposed based on the theory of nonlinear finite element analysis. A two-step analysis method is proposed and used in this study. Through this analysis scheme, the structural state under dead load is considered before the live load analysis. The developed program is used to study the ultimate behavior of steel cable-stayed bridges under vertically applied live load cases. Analytical study is used to investigate governing ultimate modes under the considered live load cases. By comparing the analysis results under each live load case, the critical load case is determined. The effects of geometric nonlinearities and material nonlinearities on the ultimate behavior of steel cable-stayed bridges are studied by performing geometric nonlinear analysis, as well as ultimate analysis.

Original languageEnglish
Pages (from-to)601-624
Number of pages24
JournalInternational Journal of Steel Structures
Volume16
Issue number2
DOIs
Publication statusPublished - 2016 Jun 1

Fingerprint

Cable stayed bridges
Steel bridges
Cables
Finite element method
Nonlinear analysis

Keywords

  • cable-stayed bridges
  • generalized displacement control method
  • initial shape analysis
  • nonlinear analysis
  • refined plastic hinge method

ASJC Scopus subject areas

  • Civil and Structural Engineering

Cite this

Ultimate behavior of steel cable-stayed bridges - I. Rational ultimate analysis method -. / Kim, Seungjun; Won, Deok Hee; Kang, Young Jong.

In: International Journal of Steel Structures, Vol. 16, No. 2, 01.06.2016, p. 601-624.

Research output: Contribution to journalArticle

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