Earthquakes and Structures

  • 제15권2호
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  • Pages.133-144
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  • 2018
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Effect of the limiting-device type on the dynamic responses of sliding isolation in a CRLSS

  • Cheng, Xuansheng (Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology) ;
  • Jing, Wei (Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology) ;
  • Li, Xinlei (Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology) ;
  • Lu, Changde (The Second Engineering Co., LTD, China Railway 21 Bureau Group Co., LTD)
  • 투고 : 2017.12.10
  • 심사 : 2018.04.18
  • 발행 : 2018.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

To study the effectiveness of sliding isolation in a CRLSS (concrete rectangular liquid-storage structure) and develop a reasonable limiting-device method, dynamic responses of non-isolation, sliding isolation with spring limiting-devices and sliding isolation with steel bar limiting-devices are comparatively studied by shaking table test. The seismic response reduction advantage of sliding isolation for concrete liquid-storage structures is discussed, and the effect of the limiting-device type on system dynamic responses is analyzed. The results show that the dynamic responses of sliding isolation CRLSS with steel bar-limiting devices are significantly smaller than that of sliding isolation CRLSS with spring-limiting devices. The structure acceleration and liquid sloshing wave height are greatly influenced by spring-limiting devices. The acceleration of the structure in this case is close to or greater than that of a non-isolated structure. Liquid sloshing shows stronger nonlinear characteristics. On the other hand, sliding isolation with steel bar-limiting devices has a good control effect on the structural dynamic response and the liquid sloshing height simultaneously. Thus, a limiting device is an important factor affecting the seismic response reduction effect of sliding isolation. To take full advantage of sliding isolation in a concrete liquid-storage structure, a reasonable design of the limiting device is particularly important.

키워드

참고문헌

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피인용 문헌

  1. Shock absorption of concrete liquid storage tank with different kinds of isolation measures vol.18, pp.4, 2018, https://doi.org/10.12989/eas.2020.18.4.467