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http://dx.doi.org/10.11112/jksmi.2011.15.6.166

Evaluation of Shear Capacity on PC Girder-PC Beam Joint  

Moon, Jeong Ho (한남대학교 건축공학과)
Oh, Young Hun (건양대학교 건축공학과)
Lim, Jae Hyung (우송정보대학 리모델링건축과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.15, no.6, 2011 , pp. 166-174 More about this Journal
Abstract
The object of this study is to evaluate the structural shear capacity of the PC girder-PC beam joint. The dapped end of PC beam and the ledger of PC girder are usually designed to design load. If the end of PC beam can be designed with continuous end, the dapped end of PC beam and the ledger of PC girder do not need to resist to all loads except dead load and construction load. The experimental program was carried out with 7 specimens containing the variable factors as the anchored method of the hanger bar, design load, be or not exist of ledger bars. As a result, the continuity of the dapped end and the ledger were ensured their safety although the design load was only the dead load and the construction load. The shear critical section was expanded toward the effective depth d, the distance from the supported position of the beam. If the ledger is designed according to PCI Design Handbook, the structural system of the ledger is as to the cantilever slab system. But the ledger of this study is as to the 3 side fixed slab system. Therefore the design of the ledger by PCI Design Handbook will lead to highly conservative results.
Keywords
PC girder-PC beam joint; Dapped end; Ledger; Shear capacity;
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  • Reference
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