Fuzzy Probability Study on Wind-Induced Annoyance of Tall Buildings

Wind-induced annoyance of high-rise buildings was studied using fuzzy probability method. Fuzzy annoyance modes with different membership functions (MFs) were proposed to predict structural annoyance ratio in wind-induced vibration. The predictions of the annoyance ratio were compared firstly with the existing results by other researchers to verify the reliability of the method proposed in this paper. Parameters of influencing the annoyance ratio, such as membership functions and population distributions along structural height, were then investigated and assessed separately in detail by a high-rise case mode. The results show that the annoyance ratio of wind-induced vibration can be predicted rationally using the fuzzy annoyance modes. Relationship between the annoyance ratio and structural vibration acceleration can well be presented by the proposed modes, especially for the modes with MF1 and MF4. The annoyance ratio of a tall building is influenced greatly by accelerations of the upper stories, but not the lower stories. The proposed fuzzy modes provide a new and reliable way to investigate the total annoyance ratio of a building and do shine some lights on how to quantify vibration annoyance and guide structural comfort design.

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