프리캐스트 주형을 갖는 합성형 교량의 연속화에 따른 거동 해석 Structural Behavior of Precast Girder Bridges Due to Continuity of Spans

This paper deals with the analysis for the long-term behavior due to continuity of composite precast concrete girder bridges and the analysis includes the section and member analyses. On the bases of taking the layer approach dividing a section with imaginary steel and concrete layers and using the assumed displacement field formulation the stiffness matrix of a beam element is derived. Besides, the iteration method adopted is the combined constant-variable method, i.e., the stiffness matrix is only updated at every loading step. Creep and shrinkage strains at each layer are calculated by using the first-order algorithm based on the expansion of creep compliance because the stress variation can be considered effectively. Finally numerical examples are analyzed with the objective to predict the long-term behavior of the bridge according to the difference in ages of concrete used in decks, girders and continuity parts and the steel ratio at the continuity part.
Publisher
전산구조공학
Issue Date
1998-06
Language
KOR
Citation

전산구조공학, v.11, no.2, pp.327 - 339

ISSN
1229-3059
URI
http://hdl.handle.net/10203/75196
Appears in Collection
CE-Journal Papers(저널논문)
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