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Abstract

Along with the continuous progress of science and technology, the tall buildings in the world in general and in Vietnam in particular have been developing with the progress of height as well as complexity. As the height of the building increases, the complexity of the design also increases, especially the work of determining the building’s responses to actions such as earthquakes. Therefore, the vibration analysis of tall building structures under the earthquakes is an issue that needs attention and is necessary for research. In this study, the vibration characteristics of a real tall building are analyzed for free vibration and vibration caused by earthquakes. Firstly, the reinforced concrete tall building structure is simulated by the finite element method using specialized structural analysis software SAP2000. Then, the vibration responses (acceleration, natural frequency, mode shape) of the structure are analyzed. The acceleration responses are extracted from survey points along the building height. The frequency domain decomposition (FDD) method is employed to determine the vibration characteristics (natural frequency, mode shape) of the building by analyzing the acceleration data caused by earthquake. Finally, the vibration characteristics when the structure is subjected to earthquake are compared and evaluated in accordance with the results of free vibration analysis.



Author's Affiliation
  • Hong-Huan Chiem

    Google Scholar Pubmed

  • Kieu-Diem-Huynh Vo

    Google Scholar Pubmed

  • Thi-Truc-Ngan Nguyen

    Google Scholar Pubmed

  • Thu-Huong Thi Nguyen

    Google Scholar Pubmed

  • Duc-Duy Ho

    Google Scholar Pubmed

Article Details

Issue: Vol 7 No 1 (2024): Vol 7 (1): Under publishing
Page No.: In press
Published: Jun 7, 2024
Section: Research article
DOI: https://doi.org/10.32508/stdjet.v7i1.1324

 Copyright Info

Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Chiem, H.-H., Vo, K.-D.-H., Nguyen, T.-T.-N., Nguyen, T.-H., & Ho, D.-D. (2024). Analysis the change of vibration responses for tall building structure under earthquake. VNUHCM Journal of Engineering and Technology, 7(1), In press. https://doi.org/https://doi.org/10.32508/stdjet.v7i1.1324

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