Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Experimental Evaluation of Shear Behavior Considering Friction Element Detachment on Pot Bearing

포트받침의 마찰요소 이탈을 고려한 전단거동 실험 평가

  • Yoon, Hyejin (Department of Structural Engineering Research, Korea Institute of Civil Engineering and Building Technology) ;
  • Cho, Chang-Beck (Department of Structural Engineering Research, Korea Institute of Civil Engineering and Building Technology) ;
  • Kim, Young-Jin (Planning and Coordination Department, Korea Institute of Civil Engineering and Building Technology) ;
  • Kang, Jun Won (Department of Civil and Environmental Engineering, Hongik University)
  • 윤혜진 (한국건설기술연구원 구조연구본부) ;
  • 조창백 (한국건설기술연구원 구조연구본부) ;
  • 김영진 (한국건설기술연구원 기획조정본부) ;
  • 강준원 (홍익대학교 건설환경공학과)
  • Received : 2022.12.28
  • Accepted : 2023.06.01
  • Published : 2023.07.01
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Abstract

In this study, considering the expansion/contraction behavior of the upper structure at all times and the abnormal behavior of the receiving friction elements that allow horizontal movement during earthquakes, a port receiving test body simulating the protrusion of the friction elements was created and the modulus performance was evaluated. In order to confirm the influence of the friction element's projection, the friction element's degree of separation was divided into four stages, and the shear behavior of the test specimen and the friction coefficient were confirmed. As a result of the experiment, it was found that the friction load increases as the protrusion degree of the friction element increases. On the other hand, as the degree of protrusion of the coefficient of friction increases, the coefficient of friction also increases. It was confirmed that damage to the friction elements during use increases the coefficient of friction, hinders smooth expansion and contraction of the upper structure, and causes stress concentration at the fixed-end support.

Keywords

Acknowledgement

본 논문은 국토교통부/국토교통과학기술진흥원의 지원(건설기술촉진사업, 과제번호 RS-2021-KA163620)으로 수행되었음.

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