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Identification of Wind Loads on Supertall Buildings Using Kalman Filtering-Based Inverse Method
| 题名： | Identification of Wind Loads on Supertall Buildings Using Kalman Filtering-Based Inverse Method |
| 正文语种： | 英文 |
| 作者： | Lunhai Zhi; Q. S. Li, M.ASCE; Mingxin Fang;Jun Yi |
| 作者单位： | Wuhan Univ;City Univ, of Hong Kong |
| 关键词： | Wind load identification; Inverse method; Tall building; Kalman filter; Wind-induced response; Wind-tunnel test; Field measurement; Structural health monitoring; Wind effects. |
| 摘要： | A Kalman filtering-based in verse method for identification of wind forces on supertali buildings is proposed. The new approach allows simultaneously estimating the wind loads and entire wind-induced responses of a supertali building using only a limited set of measurements. The effectiveness and good accuracy of the proposed algorithm are validated with experimental results. The wind loads acting on a supertail building are estimated based on the wind-induced responses determined from wind-tunnel testing. The stability of the proposed algorithm is evaluated. The effects of several key factors such as measurement noise, errors of structural modal parameters, and covariance matrix of noise on the identification accuracy are examined and discussed using the L-curve method. Finally, the identified wind loads on the supertail building based on fie Id-measured displacements were compared with the wind-tunnel testing results to further verify the effectiveness of the inverse technique. DOI: 10.1061/(ASCE)ST. 1943-541X.0001691. © 2016 American Society of Civil Engineers. |
| 出版日期： | 2017.04 |
| 出版年： | 2017 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.143 |
| 期： | NO.04 |
| 页码： | 06016004 |
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