Earthquakes and Structures

  • 제7권4호
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  • Pages.415-448
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  • 2014
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

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Seismic behavior of suspended building structures with semi-rigid connections

  • Liu, Yuxin (Civil Engineering Analysis, Candu Energy Inc.) ;
  • Lu, Zhitao (School of Civil Engineering, Southeast University)
  • 투고 : 2014.02.20
  • 심사 : 2014.07.07
  • 발행 : 2014.10.30
⟨ 이전 논문 다음 논문 ⟩

초록

A method is presented in this paper to analyze the dynamic response behavior of suspended building structures. The effect of semi-rigid connections that link suspended floors with their supporting structure on structural performance is investigated. The connections, like the restrains in non-structural suspended components, are designed as semi-rigid to avoid pounding and as energy dissipation components to reduce structural response. Parametric study is conducted to assess the dynamic characteristics of suspended building structures with varying connection stiffness and suspended mass ratios. Modal analysis is applied to identify the two distinct sets of vibration modes, pendulum and bearing, of a suspended building structure. The cumulative modal mass is discussed to ensure the accuracy in applying the method of response spectrum analysis by SRSS or CQC modal combination. Case studies indicate that a suspended building having semi-rigid connections and proper suspended mass ratios can avoid local pounding failure and reduce seismic response.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

참고문헌

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피인용 문헌

  1. Ductility demands and reduction factors for 3D steel structures with pinned and semi-rigid connections vol.16, pp.4, 2014, https://doi.org/10.12989/eas.2019.16.4.469