NDLI: Parametric Study on the Structural Characteristics of Extradosed PSC Box Girder Bridges

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Parametric Study on the Structural Characteristics of Extradosed PSC Box Girder Bridges

Content Provider	Semantic Scholar
Author	Chung, Jee-Seung Jeon, Jun-Chang Park, Jin-Seok
Copyright Year	2016
Abstract	In this paper, structural characteristics for an extradosed prestressed concrete box girder bridge are investigated in terms of selective parameters. These parameters are mainly associated with the structural details of the extradosed bridge and derived from currently available literatures regarding previous design drawings. The analyses have been carried out using general-purpose structural analysis program, RM-Space Frame. The parameters evaluated for the present study represent the most salient features of the extradosed bridge and are as follows; 1) span length ratio(side-span length to center-span length), 2) boundary condition of girder, 3) height of pylon, 4) anchorage location of external cables and 5) girder stiffness. The analytical predictions indicate that span length ratio and pylon height are reasonably adequate in the range of 0.55 to 0.60 and Lm/8 to Lm/12 respectively for the bridge under consideration. Also, demonstrated is the boundary condition of girder, in which rigid-connection details give more efficiency than the continuous details. In addition, considering structural characteristics of the extradosed bridge, it is desirable that the girder stiffness should be determined by the stress range of external cables rather than bending moment of girder.
Starting Page	74
Ending Page	80
Page Count	7
File Format	PDF HTM / HTML
DOI	10.14346/JKOSOS.2016.31.1.074
Volume Number	31
Alternate Webpage(s)	http://thesis.kosos.or.kr:801/thesis/data/pdf/2016311074.pdf
Alternate Webpage(s)	https://doi.org/10.14346/JKOSOS.2016.31.1.074
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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