Earthquakes and Structures

  • 제4권2호
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  • Pages.133-155
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  • 2013
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

A method for earthquake response analysis of tall flexible structure

  • Liu, Tielin (School of Civil Engineering, Dalian University of Technology) ;
  • Jiang, Yingchun (School of Civil Engineering, Dalian University of Technology) ;
  • Luan, Yu (School of Civil Engineering, Dalian University of Technology)
  • 투고 : 2011.05.09
  • 심사 : 2012.03.12
  • 발행 : 2013.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

The earthquake responses are studied for the tall flexible structures such as TV towers when the vertical eccentricities between the discrete nodes and the corresponding centroids of investigated lumps are considered. In practical analyses, the tall flexible structures can be made into a spatial-discrete system of some certain length of beam elements with different lengths and cross-sectional areas. These elements are used to construct the investigated lumps in this paper. The different cross-sectional areas and the different lengths of two adjacent elements lead to the appearance of vertical eccentricity between the discrete node and the centroid of investigated lump within the same investigated lump. Firstly, the governing equations are established for a typical investigated lump. Secondly, the calculating formulae of the forces and moments acting on the investigated lump are derived and provided. Finally the new dynamic equilibrium equations with modified mass matrix and assemblage of stiffness matrix have been derived for the stick MDOF model based on beam theory when the existing vertical eccentricities are considered. Numerical results demonstrate that these vertical eccentricities should be considered in order to obtain the accurate earthquake responses for the tall flexible structures.

키워드

과제정보

연구 과제 주관 기관 : Natural Science Foundation of China

참고문헌

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피인용 문헌

  1. Explicit fiber element and its application to piers under multipulse near-fault earthquake motion pp.15417794, 2018, https://doi.org/10.1002/tal.1547
  2. On the wind and earthquake response of reinforced concrete chimneys vol.12, pp.5, 2013, https://doi.org/10.12989/eas.2017.12.5.559
  3. Zemin-yapı etkileşiminin betonarme bacaların dinamik davranışına etkisi vol.7, pp.1, 2013, https://doi.org/10.29130/dubited.465732