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Study on seismic response of a new double story isolated structure

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DOI: 10.23977/jceup.2023.051101 | Downloads: 10 | Views: 194

Author(s)

Hang Shan 1, Dewen Liu 1, Zhiang Li 1, Fusong Peng 1, Tiange Zhao 1

Affiliation(s)

1 College of Civil Engineering, Southwest Forestry University, Kunming, 650000, China

Corresponding Author

Dewen Liu

ABSTRACT

The traditional double story isolated structure is a type of isolated structure developed from base isolated structure and inter-story isolated structure. The new double story isolated structure is a new type of isolated structure developed from traditional double story isolated structure. In order to study the seismic response of the new double story isolated structure, the model of the structure was established. At the same time, models of basic fixed, base isolated, inter-story isolated and traditional double story isolated structures were established. The nonlinear dynamic time history response of the new double story isolated structure under rare earthquakes was analyzed. The study shows that compared to basic fixed, the new double story isolated structure has superior performance in all aspects. Compared with base isolated and inter-story isolated, the new double story isolated structure can significantly reduce the inter-story shear force, top acceleration, and inter-frame displacement of the structure. The horizontal displacement of the new double story isolated structure is concentrated on the two isolated layers of the structure, dissipating most of the input seismic energy. Compared with the traditional double story isolated structure, the new one reduces the displacement of the inter-isolation layer in the middle of the frame, ensuring the integrity of the core tube and avoiding collapse and damage of the structure.

KEYWORDS

New double story isolated structure; traditional double story isolated structure; high-rise building; base isolated structure; inter-story isolated structure

CITE THIS PAPER

Hang Shan, Dewen Liu, Zhiang Li, Fusong Peng, Tiange Zhao, Study on seismic response of a new double story isolated structure. Journal of Civil Engineering and Urban Planning (2023) Vol. 5: 1-11. DOI: http://dx.doi.org/10.23977/jceup.2023.051101.

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