KCI Concrete Journal

Korea Concrete Institute (한국콘크리트학회)
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Prestressed Concrete Girder Bridges Strengthened by External Post-tensioning Method

  • Kim, Kwang-Soo (Civil Engineering Division, Korea Institute of Construction Technology) ;
  • Park, Sun-Kyu (Dept. of Civil Environmental Engineering, Sung Kyun Kwan University) ;
  • Kim, Hyeong-Yeol (Civil Engineering Division, Korea Institute of Construction Technology)
  • Published : 2000.01.01
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Abstract

This Paper deals with the analysis of both unstrengthened and strengthened prestressed concrete girder bridges. Finite element method is utilized to perform the analysis of superstructures. Based on the grillage method of analysis. emphasis is Placed on the modeling techniques for structures. The conventional grillage method of analysis is modif'=ed so that the interaction between the slab and gilder behaviors can be taken into account in the analysis A Prototype of simply supported prestressed I-type girder bridge is selected for the analysis. The results of numerical analyses are compared with those of load test. The results of analysis indicate that the proposed method of analysis gives more realistic response of bridges than the conventional grillage method.

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