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2023 Vol.36, Issue 2 Preview Page

Research Paper

Performance Comparison Analysis of a Bridge Installed with Anti-seismic Devices using PVDF/MgO Friction Material According to Friction Analysis Models

마찰해석모델에 따른 PVDF/MgO 마찰재 적용 면진 장치가 설치된 교량의 성능 비교 분석

Hye-Ri Park1
,
Sung-Jo Kim2
,
Tong-Seok Han3*
박 혜리1
,
김 성조2
,
한 동석3*
1Graduate Student, Department of Civil and Environmental Engineering, Yonsei University, Seoul, 03722, Korea
2Graduate Student, Department of Civil and Environmental Engineering, Yonsei University, Seoul, 03722, Korea
3Professor, Department of Civil and Environmental Engineering, Yonsei University, Seoul, 03722, Korea
1연세대학교 건설환경공학과 석사과정
2연세대학교 건설환경공학과 박사과정
3연세대학교 건설환경공학과 교수
*Corresponding Author
30 April 2023. pp. 105-112
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Abstract

In this study, structural analyses were conducted to analyze the performance of a bridge to which friction pendulum systems (FPSs) were applied using different friction models. A Coulomb friction model and a rate dependent friction model were constructed using the friction coefficient of a PVDF/MgO friction material to analyze the effect of different friction analysis models. The Coulomb friction model uses a single friction coefficient regardless of friction velocity, while the rate dependent friction model can reflect the change in the friction coefficient with friction velocity. Nonlinear time history and seismic fragility analyses were conducted to confirm responses of the bridge. The seismic responses of a deck and a column were used to evaluate the performance of the base isolated bridge, and a friction model that can effectively evaluate the performance of isolated bridges was analyzed.

Keywords
PVDF/MgO friction material
Coulomb friction
Rate dependent friction
Nonlinear time history analysis
Seismic fragility analysis

본 연구에서는 마찰모델에 따라 다른 마찰진자시스템(FPS)이 적용된 교량의 성능을 비교･분석하기 위해 구조해석을 수행하였다. 마찰해석모델 별 성능을 분석하기 위해 PVDF/MgO 마찰재의 마찰계수를 활용하여 쿨롱 마찰모델과 속도 의존 마찰모델을 구축했다. 쿨롱 마찰모델은 마찰속도와 관계없이 단일 마찰계수를 사용하며, 속도 의존 마찰모델은 마찰속도에 따른 마찰계수의 변화를 반영하는 마찰모델이다. 지진해석으로 비선형 시간 이력 해석과 지진 취약도 해석을 수행하여 구조물의 응답을 확인하였다. 마찰모델에 따른 바닥판과 교각의 지진 응답을 활용해 면진된 교량의 성능을 분석하였으며, 면진된 교량의 성능을 효과적으로 평가할 수 있는 마찰모델을 분석했다.

키워드
PVDF/MgO 마찰재
쿨롱 마찰
속도 의존 마찰
지진 취약도 분석
비선형 시간 이력 해석
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Information
  • Publisher :Computational Structural Engineering Institute of Korea
  • Publisher(Ko) :한국전산구조공학회
  • Journal Title :Journal of the Computational Structural Engineering Institute of Korea
  • Journal Title(Ko) :한국전산구조공학회 논문집
  • Volume : 36
  • No :2
  • Pages :105-112
  • Received Date : 2023-03-03
  • Revised Date : 2023-03-30
  • Accepted Date : 2023-03-31
  • DOI :https://doi.org/10.7734/COSEIK.2023.36.2.105
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