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http://dx.doi.org/10.12652/Ksce.2010.30.3A.287

Experimental Study on Static Behavior of Laterally Strengthened Spliced Prestressed Concrete Girder using Bending Moment Connector  

Kim, Jae Heung (연세대학교 토목공학과, 포스코건설 R&D Center 신동력연구그룹)
Kim, Jang-Ho Jay (연세대학교 사회환경시스템공학부)
Kim, Sung Bae (연세대학교 토목공학과)
Yi, Na Hyun (연세대학교 토목공학과)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.30, no.3A, 2010 , pp. 287-295 More about this Journal
Abstract
The main purpose of this study is to investigate the static behavior of spliced prestressed concrete girder with bending moment connector and lateral prestressing. Four (4) spliced girders and one (1) monolithic girder had been fabricated and tested to compare their static behaviors. Same geometry and materials are used to fabricate these spliced and monolithic girders. A monolithic girder and one (1) spliced girder without lateral bending connector are used as control specimens to estimate the performance of three (3) spliced girders with lateral bending connector. Deflections at the middle of girders have been measured for evaluation. Also, strains of the concrete at the middle of span and connection points have been measured. It was found from the result that laterally strengthened spliced girders showed improved ultimate strength but less stiffness compared to the monolithic girder at the ultimate state. Laterally strengthened spliced girder also showed improved strength as well as improved stiffness compared to the spliced girder without lateral strengthening.
Keywords
prestressed concrete; precast concrete; spliced girder; bending connector; lateral prestressing; joint opening;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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