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Title |
Seismic Experiment of Precast Concrete Exterior Beam-Column Joint Using Bolt Type Connection and Prestressing Method
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DOI |
https://doi.org/10.4334/JKCI.2014.26.2.125 |
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Keywords |
프리캐스트 콘크리트 ; 외부 보-기둥 접합부 ; 반복하중 ; 내진성능 ; 건식공법 precast concrete ; exterior beam-column joint ; cyclic load ; seismic performance ; pure dry method |
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Abstract |
In this study, experimental research was carried out to investigate the seismic and structural performance of precast concrete exterior beam-column joints using bolt type connection and prestressing method. A total of five full-scale exterior beam-column joints were constructed and tested under reversed cyclic loading, controlled by displacement. Results of the test are as follows: Energy dissipation capacity and pinching phenomenon of PC beam-column joints showed disadvantageous behavior compared to RC beam-column joints. However, drift capacity of the PC joint was excellent. Also, yield mechanism concentrated on embedded nuts was suitable as an exterior beam-column joint of lateral load resistance frame. Additional application of prestressing method was also very effective to control excessive pinching and cracking in the joint region, and thus improved an overall seismic performance of the PC joint.
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