Wind and Structures

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A nondestructive method for controlling wind loads and wind-induced responses of wooden pagoda

  • LI, Yuhang (School of Civil Engineering, Southeast University) ;
  • DENG, Yang (Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture) ;
  • LI, Aiqun (School of Civil Engineering, Southeast University)
  • Received : 2021.11.09
  • Accepted : 2022.05.22
  • Published : 2022.06.25
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Abstract

High-rise wooden pagodas generate large displacement responses under wind action. It is necessary and wise to reduce the wind loads and wind-induced responses on the architectural heritage using artificial plants, which do not damage ancient architecture and increase greenery. This study calculates and analyzes the wind loads and wind-induced responses on the Yingxian Wooden Pagoda, in China, using artificial plants via the finite element analysis (FEA). A three-dimensional wind-loading field was simulated using a wind tunnel test. Wind loads and wind-induced responses, including the displacement and acceleration of the pagoda with and without artificial plants, were analyzed. In addition, three types of tree arrangements were discussed and analyzed using the score method. The results revealed that artificial plants can effectively control wind loads and wind-induced displacements, but the wind-induced accelerations are enlarged to some extent during the process. The height of the tree significantly affected the shelter effects of the structure. The distance of trees from the pagoda and arrangement width of the tree had less influence on shelter effects. This study extends the understanding of the nondestructive method based on artificial plants, for controlling the wind base loads and structural responses of wooden pagodas and preserving architectural heritage via FEA.

Keywords

Acknowledgement

This work was supported by the National Key R&D Program of China [grant number 2019YFC1520800]; and the National Natural Science Foundation of China [grant numbers 51978033, 51878027]. The authors gratefully thank Prof. Guixiang Wang for drawing Fig. 1(b), Dr. Chunguang Li, Mr. Linwei Zhou and Hubin Yan in Changsha University of Science & Technology, and Mr. Tao Xu in Beijing University of Civil Engineering and Architecture for the help of wind tunnel test. The authors also thank Editage (www.editage.com) for its linguistic assistance during the preparation of this manuscript

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