Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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Structural Behavior of Precast Concrete Wall Panels with Horizontal Connection using Threaded Rebar

나사 가공 철근으로 연결된 프리캐스트 콘크리트 벽 패널의 구조적 거동

  • Lee, Sang-Sup (Korea Institute of Civil Engineering and Building Technonogy)
  • Received : 2022.03.07
  • Accepted : 2022.04.22
  • Published : 2022.05.30
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Abstract

This study aims to investigate the structural performance of the dry joint of a PC wall panel with the threaded connecting rebars fastened by nuts. In previous experiments where non-standard nuts were used, it was found that the thread shear failure of nuts occurred due to the lack of strength and engagement length. New specimens were manufactured using F10T high tension nuts instead of the SM45C hex nuts and coupler pieces. The SD500 D25 and D29 connecting rebars were used with metric thread M24 and M30 respectively. Three fully reversed cyclic loading tests were carried out with a gradually increased increment in drift ratio in each step under constant axial force. The experimental results indicated that the peak strength of a specimen depends on the yield strength or the thread shear strength of the rebar. The strength of the nut thread was stronger than the rebar thread and the proper engagement length of a nut would result in a tensile failure of the connecting rebar rather than thread shear failure.

Keywords

Acknowledgement

이 연구는 2021년도 국토교통과학기술진흥원의 연구비 지원에 의한 결과의 일부임. 과제번호 21RERP-B082884-8

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