关键词: 桥梁, 抖振, 气动导纳, 局限性

Abstract: Aiming directly at the limitations of aerodynamic admittance function of current sdandard, and in order to describe the effects of aerodynamic admittance function to buffeting, various factors that affect the aerodynamic admittance are put forward by overall theoretical analysis. The limitations of current aerodynamic admittance function are tested by programming and wind tunnel test. Then it is pointed out sequentially that a systematic aerodynamic admittance theory is necessary. The results provide theoretic bases for better assurance of the buffeting theory and the project applications.

Key words: bridges, buffeting, aerodynamic admittance, limitations