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Nonlinear Earthquake Analysis of a Steel Girder Bridge using Point Hinge Models  

Lee, Do Hyung (배재대학교 건설환경철도공학과)
Kim, Yong Il (배재대학교 대학원 토목환경공학과)
Lee, Doo Ho (배재대학교 대학원 토목환경공학과)
Jeon, Jeong Moon (배재대학교 대학원 토목환경공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.21, no.4, 2009 , pp. 403-411 More about this Journal
Abstract
In the present study, nonlinear earthquake analysis was carried out for a steel girder bridge that had been damaged by the 1995 Kobe earthquake. For such analysis, the use of hysteretic models describing flexure-axial and shear-axial interaction was suggested. The models were incorporated into a structural analysis program in terms of the joint elements representing hinge models, and then a simplified analysis scheme using the hinge models was employed for bridge piers. The analytical predictions of the flexure-axial interactive hinge model show a good correlation with those of the detailed fiber element model. In addition, the analytical predictions of the flexure-shear-axial interactive hinge model enable a displacement component to be separately captured. It is thus recognized that the present study can be a useful scheme for the healthy evaluation of the global displacement performance of piers subjected to earthquake excitation.
Keywords
flexure-axial interaction; shear-axial interaction; hinge model; steel girder bridge; nonlinear earthquake analysis;
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Times Cited By KSCI : 2  (Citation Analysis)
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