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http://dx.doi.org/10.12652/Ksce.2015.35.4.0747

An Experimental Study on the Structural Performance of Horizontally Curved Precast PSC Girder  

Lee, Doo Sung (Hong-G Reserch Institute)
Choi, Woo Suk (Hong-G)
Kim, Tae Kyun (Hong-G)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.35, no.4, 2015 , pp. 747-757 More about this Journal
Abstract
The main purpose of this study is to investigate the static behavior of a horizontally curved prestressed concrete (PSC) girder. A 30m long full-scale curved PSC girder with 80.0m radius is fabricated by a portable curved form system. Deflections and concrete strains at the middle of span were measured. The obtained experimental results have been compared to those from F.E.A. analysis. When a initial crack developed, the applied load was 1.3 times the service design load and the vertical deflection at the middle of span satisfied the requirement for a live load state according to the Korea Bridge Design Specifications (2010). Also, the ductility of the full scale specimen satisfied the limit in the Specifications (2010). To verify the experimental results, a numerical F.E. analysis was carried and confirmed that the data were similar with results from the test above. The horizontally curved PSC girder fabricated on site was found to have enough strength for safety under and after construction.
Keywords
Horizontally curved girder; Radius of curvature; Prestress concrete; Torsion; Full scale model; Experimental study;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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