Structural Monitoring and Maintenance

  • 제5권2호
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  • Pages.189-204
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  • 2018
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  • 2288-6605(pISSN)
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  • 2288-6613(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Seismic response analysis of RC frame core-tube building with self-centering braces

  • Xu, Long-He (School of Civil Engineering, Beijing Jiaotong University) ;
  • Xiao, Shui-Jing (School of Civil Engineering, Beijing Jiaotong University) ;
  • Lu, Xiao (School of Civil Engineering, Beijing Jiaotong University)
  • 투고 : 2018.02.23
  • 심사 : 2018.03.30
  • 발행 : 2018.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper examines the seismic responses of a reinforced concrete (RC) frame core-tube building with pre-pressed spring self-centering energy dissipation (PS-SCED) braces. The PS-SCED brace system consists of friction devices for energy dissipation, pre-pressed combination disc springs for self-centering and tube members as guiding elements. A constitutive model of self-centering flag-shaped hysteresis for PS-SCED brace is developed to better simulate the seismic responses of the RC frame core-tube building with PS-SCED braces, which is also verified by the tests of two braces under low cyclic reversed loading. Results indicate that the self-centering and energy dissipation capabilities are well predicted by the proposed constitutive model of the PS-SCED brace. The structure with PS-SCED braces presents similar peak story drift ratio, smaller peak acceleration, smaller base shear force and much smaller residual deformations as compared to the RC frame core-tube building with bucking-restrained braces (BRBs).

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Beijing Natural Science Foundation

참고문헌

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