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Title |
Seismic Performance Evaluation of Dry-Connected Precast Concrete Beam-Column Joints Using a Coupling Device Serving as Both Rebar Splice and Bracket
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Authors |
오영훈(Young-Hun Oh) ; 김준삼(Jun-Sam Kim) ; 김정욱(Jeong-Wook Kim) ; 전병갑(Byong-Kap Jeon) ; 최재관(Jae-Kwan Choi) ; 문정호(Jeong-Ho Moon) |
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DOI |
https://doi.org/10.4334/JKCI.2026.38.5.639 |
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Keywords |
PC 건식접합; 연결기구; 중간모멘트골조; 내진성능; 비선형해석 PC dry joining; connection mechanism; intermediate moment frame; seismic performance; nonlinear analysis |
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Abstract |
The seismic performance of beam?column connections using a dry jointing method was evaluated. To achieve dry connections, a construction method was developed employing two types of connectors?B-brackets and S-brackets?such that construction loads are supported by the brackets, while service and factored loads are transferred by enabling the brackets to function as mechanical splices for reinforcing bars. Analytical investigations were conducted for each bracket, and the splice performance of the two bracket types, acting as mechanical splices, was evaluated in accordance with KCI-ST103. For the experimental study, structural designs were carried out for precast concrete (PC) apartment buildings and general PC buildings, and based on these designs, three full-scale specimens were prepared. The objective of the experiments was to assess whether the beam?column connections using dry joints exhibit seismic performance corresponding to that of an intermediate moment-resisting frame. In addition, nonlinear analysis was performed to provide a comparative evaluation of the experimental results. The findings of this study indicate that the proposed PC structural system with dry joints satisfies the requirements of KDS 41 20 10 in terms of seismic performance.
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