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논문 기본 정보

자료유형
학술저널
저자정보
Yongjei Lee (Seoyeong Engineering) Eun-Taik Lee (Chung-Ang University)
저널정보
한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.7 No.4
발행연도
2013.12
수록면
265 - 271 (7page)

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초록· 키워드

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Prestressed concrete cylindrical pipe (PCCP) has been widely used for the distribution of water in communal, industrial, and agricultural systems for a long time. However, as it deteriorates, structural failures have been experienced. Replacing the entire existing PCCP with partial damages is not an economical method. Currently, as a cost effective repairing method, a new approach using fiber reinforced polymer (FRP) has been applied. A new design procedure of this method was proposed considering various kinds of loading condition. However, it is not easy to apply this method for design purpose due to its complex procedures. The objective of this study is to provide a new design criteria and process for PCCP rehabilitation with FRP. Through this method, the appropriate quantities of FRP layers will be decided after examining of limit states of deteriorated PCCP. For this purpose, two deterioration conditions are assumed; fully deteriorated and partially deteriorated. Different limit states for each case are applied to decide the quantities of attached FRP. The concept of ‘‘margin of safety’’ is used to judge whether the design results are within the optimal ranges to satisfy all limit states.

목차

Abstract
1. Introduction
2. Theory and Method
3. Example and Result
4. Conclusions
References

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