중간모멘트골조 상세를 갖는 건식 프리캐스트 콘크리트 보-기둥 접합부의 내진성능평가
Seismic Performance Evaluation of Dry Precast Concrete Beam-Column Connections With Intermediate Moment Frame Details
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초록
This study presents a dry precast concrete (PC) beam-column connection, and its target seismic performance level is set to be emulative to the reinforced concrete (RC) intermediate moment resisting frame system specified in ACI 318 and ASCE 7. The key features include self-sustaining ability during construction with the dry mechanical splicing method, enabling emulative connection performances and better constructability. Test specimens with code-compliant seismic details were fabricated and tested under reversed cyclic loading, which included a PC beam-column connection specimen with dry connections and an RC control specimen. The test results showed that all the specimens failed in a similar failure mode due to plastic deformations in beam members, while the hysteretic response curve of the PC specimen showed comparable and emulative performances compared to the RC specimen. Seismic performance evaluation was quantitatively addressed, and on this basis, it confirmed that the presented system can fully satisfy all the required performance for the intermediate RC moment resisting frame.
Abstract
This study presents a dry precast concrete (PC) beam-column connection, and its target seismic performance level is set to be emulative to the reinforced concrete (RC) intermediate moment resisting frame system specified in ACI 318 and ASCE 7. The key features include self-sustaining ability during construction with the dry mechanical splicing method, enabling emulative connection performances and better constructability. Test specimens with code-compliant seismic details were fabricated and tested under reversed cyclic loading, which included a PC beam-column connection specimen with dry connections and an RC control specimen. The test results showed that all the specimens failed in a similar failure mode due to plastic deformations in beam members, while the hysteretic response curve of the PC specimen showed comparable and emulative performances compared to the RC specimen. Seismic performance evaluation was quantitatively addressed, and on this basis, it confirmed that the presented system can fully satisfy all the required performance for the intermediate RC moment resisting frame.
참고문헌 (7)
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- "ACI Committee 318. Building Code Requirements for Structural Concrete (ACI 318-19) and Commentary (ACI 318R-19)", American Concrete Institute, 624~ (2019)
- "Joint ACI-ASCE Committee 352. Recommendations for Design of Beam-Column Connections in Monolithic Reinforced Concrete Structures (ACI 352R-02)", American Concrete Institute, 38~ (2002)
- "ACI Committee 374. Acceptance Criteria for Moment Frames based on structural testing and commentary (ACI 374.1-05)", American Concrete Institute, 9~ (2005)
- 장범수, "프리캐스트 와이드거더-기둥 접합부의 횡방향 구조거동", 콘크리트학회 논문집, 33(3), pp.289~297 (2021), 한국콘크리트학회[DOI]
- Zhang W, "Seismic Performance of Precast Wide Beam-Column Connections with Asymmetrical Anchorage Reinforcement Details", Engineering Structures, 275, pp.115237~ (2022)
- American Society of Civil Engineers, "Minimum Design Loads and Associated Criteria for Buildings and Other Structures (ASCE", SEC 7-22), 2022