Steel and Composite Structures

  • 제49권3호
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  • Pages.257-270
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  • 2023
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Seismic retrofit of structures using added steel column friction dampers

  • Mohammad Mahdi Javidan (Department of Global Smart City, Sungkyunkwan University) ;
  • Asad Naeem (Department of Civil and Architectural Engineering, Balochistan University of Information Technology) ;
  • Jinkoo Kim (Department of Global Smart City, Sungkyunkwan University)
  • 투고 : 2023.01.16
  • 심사 : 2023.09.18
  • 발행 : 2023.11.10
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, the feasibility and applicability of a friction damper with a vertical installation scheme are investigated. This device is composed of a steel section and two friction hinges at both ends which dissipate seismic energy. Due to its small width and vertical installation scheme, the proposed damper can minimize the interference with architectural functions. To evaluate the performance of the proposed damper, its mechanical behavior is theoretically evaluated and the required formulas for the yield strength and elastic stiffness are derived. The theoretical formulas are verified by establishing the analytical model of the damper in the SAP2000 software and comparing their results. To further investigate the performance of the developed damper, the provided analytical model is applied to a 4-story reinforced concrete (RC) structure and its performance is evaluated before and after retrofit under the Maximum Considered Earthquake (MCE) hazard level. The seismic performance is thoroughly evaluated in terms of maximum interstory drift ratio, displacement time history, residual displacement, and energy dissipation. The results show that the proposed damper can be efficiently used to protect the structure against seismic loads.

키워드

과제정보

This study was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2021R1A2C2006631).

참고문헌

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