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作者:

Gao, Zhidong (Gao, Zhidong.) | Zhao, Mi (Zhao, Mi.) (学者:赵密) | Wu, Yangzhou (Wu, Yangzhou.) | Wang, Meng (Wang, Meng.) | Du, Xiuli (Du, Xiuli.)

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摘要:

Tuned mass damper (TMD) is a practical tool for reducing structural vibration. The current TMD design often use the dynamic characteristics of structures with fixed base. However, in terms of resisting earthquakes especially when the soil-structure interaction (SSI) effect is prominent, the TMD designed for the fixed base situation behaves unfavorably and even amplifies the structural response. In this paper, a parameter design and performance evaluation of TMD for seismic control of structure considering SSI is studied. The contents include the SSI modeling, structural dynamic characteristic identification, and TMD parameter designing. A seismic SSI model that the soil is simulated by an accurate lumped parameter models (LPMs) is built firstly. A simple and practical method is then used to identify the structural dynamic characteristic of SSI model. The identified structural frequency is used to compute the parameters of TMD. Finally, two types of structures, three kinds of soils, and 100 ground motions are applied to comprehensively evaluate the TMD performance through the comparison with the fixed-ground-based design and optimization-algorithm-based design. The research shows the TMD designed by the proposed method can show a good performance and robustness.

关键词:

TMD design Dynamic characteristics Soil-structure interaction Accurate lumped parameter models Performance evaluation

作者机构:

  • [ 1 ] [Gao, Zhidong]Tsinghua Univ, Dept Hydraul Engn, Beijing 100084, Peoples R China
  • [ 2 ] [Gao, Zhidong]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Zhao, Mi]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Wu, Yangzhou]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 5 ] [Wang, Meng]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 6 ] [Du, Xiuli]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China

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来源 :

STRUCTURES

ISSN: 2352-0124

年份: 2023

卷: 52

页码: 1116-1129

4 . 1 0 0

JCR@2022

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SCOPUS被引频次: 20

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