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http://dx.doi.org/10.12652/Ksce.2012.32.2A.085

Analytical Study of Ultimate Behavior of Steel Cable-stayed Bridges  

Kim, Seungjun (고려대학교 초고층초장대기술연구소)
Im, Seok-Been (삼성물산(주) 건설부문 토목ENG센터 도로/철도팀)
Lee, Kee-Sei (고려대학교 건축사회환경공학과)
Kang, Young-Jong (고려대학교 건축사회환경공학과)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.32, no.2A, 2012 , pp. 85-95 More about this Journal
Abstract
This paper presents an investigation on the ultimate behavior of steel cable-stayed bridges using nonlinear finite element analysis method. Cable-stayed bridges exhibit various geometric nonlinearities as well as material nonlinearities, so rational nonlinear finite element analysis should be performed for investigation of the ultimate behavior. In this study, ultimate behavior of steel cable-stayed bridges was studied using rational ultimate analysis method. Nonlinear equivalent truss element and nonlinear frame element were used for modeling the cable, girder and mast. Moreover, refined plastic hinge method was adopted for considering the material nonlinearity of steel members. In this study, the 2-step analysis method was used. Before live load analysis, initial shape analysis was performed in order to consider the dead load condition. For investigation of the ultimate behavior of steel cable-stayed bridges, analysis models which span length is 920.0 m were used. Radiating type and fan type were considered as the cable-arrangement types. With various quantitative evidences such as load-displacement curves, deformed shapes, locations of the yield point or region, bending moment distribution and so on, the ultimate behavior of steel cable-stayed bridges was investigated and described in this paper.
Keywords
steel cable-stayed bridge; nonlinear analysis; equivalent truss element; beam-column effect; ultimate behavior;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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