English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 59161/92571 (64%)
造訪人次 : 747718      線上人數 : 37
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/110525

    題名: Simultaneous Measurement of Wind Pressures and Displacements on Tall Building
    作者: Kim, Yong Chul;Lo, Yuan-Lung;Yoon, Sung-Won
    關鍵詞: Unsteady aerodynamic force;Instability vibration;Tall building;Free vibration method
    日期: 2017-03-01
    上傳時間: 2017-07-18 02:10:26 (UTC+8)
    出版者: Korean Association for Spatial Structures
    摘要: Vortex-induced vibration and instability vibration of tall buildings are very important fluid-structure interaction phenomenon, and many fundamental questions concerning the influence of body movement on the unsteady aerodynamic force remain unanswered. For tall buildings, there are two experimental methods to investigate the characteristics of unsteady aerodynamic forces, one is forced vibration method and the other is free vibration method. In the present paper, a free vibration method was used to investigate the unsteady aerodynamic force on tall building whose aspect ratio is 9 under boundary layer simulating city area. Wind pressures on surfaces and tip displacements were measured simultaneously, and the characteristics of tip displacements and generalized forces were discussed. It was found that variation of across-wind displacements showed different trend between the case when wind speed increases and wind speed decreases, and the fluctuating generalize forces in across-wind direction of vibrating model are larger than that of static model near the resonant wind speed and approach to the static value. And for higher wind speed range, there were two peaks in across-wind power spectra of generalize forces of vibrating model, which means that two frequency components are predominant in unsteady aerodynamic forces.
    關聯: Journal of Korean Association for Spatial Structures 17(1), p.77-84
    DOI: 10.9712/KASS.2017.17.1.077
    顯示於類別:[土木工程學系暨研究所] 期刊論文


    檔案 描述 大小格式瀏覽次數
    00017_001_77.pdf912KbAdobe PDF0檢視/開啟



    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋