Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)
- 2001.11a
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- Pages.591-596
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- 2001
The Behavior of Prestressed Composite Box Girder
프리스트레스트 합성상자형교의 거동 특성
Abstract
In case of continuous steel box-girder bridges, the magnitude of the longitudinal tensile stress on concrete in internal support is larger than the tensile strength of concrete. In this paper, the parametric study was performed to present the effective magnitude of the longitudinal prestress for reducing the longitudinal tensile stress to decrease under the tensile strength of concrete. The parametric study is conducted with changing the steel box-girder section and the span length of bridge. Three dimensional finite element analyses are conducted with ABAQUS program. The behavior of the steel box-girder bridge with prestress is investigated through experimental works on a analogous steel box-girder bridge model, and their results are compared with those of analytical studies.
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