한국전산구조공학회:학술대회논문집 (Proceedings of the Computational Structural Engineering Institute Conference)
- 한국전산구조공학회 2010년도 정기 학술대회
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- Pages.476-479
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- 2010
검측비용을 고려한 PC박스 거더의 신뢰성 분석
Reliability Analysis of Prestress Concrete Box Girder Bridges Considering Inspection Cost
- Nguyen, Van Son (School of Civil, environment and architecture engineering, Korea University) ;
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Jeong, Min-Chul
(School of Civil, environment and architecture engineering, Korea University)
;
- Kong, Jung-Sik (School of Civil, environment and architecture engineering, Korea University)
- 발행 : 2010.04.08
초록
In recent years, the deterioration of infrastructures is especially considered. In prestress concrete bridges, one of the important mechanisms of deterioration is the corrosion of the post-tensioned tendon due to environmental agents. In this study, the reliability analysis is performed for a prestress concrete box girder bridge under the pitting corrosion attack with considering the inspection and failure cost. The variation of life-time performance depending on inspection methods have to be quantified. The inspection methods with different accuracy of corrosion detection are presented and applied for model of reliability analysis. The computer program for analysis reliability index of the structure as well as updating process is obtained. An existing bridge is applied for illustrating the influence of inspection cost on the behaviors of structure. Subsequently, the benefit of inspection has shown to predict the time to failure of structure.
키워드