Wind and Structures

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An integrated optimal design of energy dissipation structures under wind loads considering SSI effect

  • Zhao, Xuefei (Nanjing Yangtze River Urban Architectural Design Co., LTD.) ;
  • Jiang, Han (Nanjing Yangtze River Urban Architectural Design Co., LTD.) ;
  • Wang, Shuguang (College of Civil engineering, Nanjing Tech University)
  • Received : 2018.03.07
  • Accepted : 2018.12.28
  • Published : 2019.08.25
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Abstract

This paper provides a simple numerical method to determine the optimal parameters of tuned mass damper (TMD) and viscoelastic dampers (VEDs) in frame structure for wind vibration control considering the soil-structure interation (SSI) effect in frequency domain. Firstly, the numerical model of frame structure equipped with TMD and VEDs considering SSI effect is established in frequency domain. Then, the genetic algorithm (GA) is applied to obtain the optimal parameters of VEDs and TMD. The optimization process is demonstrated by a 20-storey frame structure supported by pile group for different soil conditions. Two wind resistant systems are considered in the analysis, the Structure-TMD system and the Structure-TMD-VEDs system. The example proves that this method can quickly determine the optimal parameters of energy dissipation devices compared with the traditional finite element method, thus is practically valuable.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China

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