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实际工程中,将水箱设计成调频质量阻尼器TMD以控制结构的风振加速度是一种经济可行的方法。在有关的风振控制理论基础上,基于现行荷载规范并结合PKPM编制了计算程序,可方便地确定TMD的最优设计参数及其对超高层建筑的控制效果。通过算例分析表明这种方法简便易行,具有应用价值。计算还表明,TMD主要控制楼层风振加速度,尤其是结构阻尼比较小时,还可改善使用的舒适性。
In practical engineering, it is an economically feasible method to design the water tank as the frequency modulation mass damper TMD to control the wind vibration acceleration of the structure. Based on the wind-induced vibration control theory, a calculation program based on the current load specification and PKPM is compiled, which can easily determine the optimal design parameters of TMD and its control effect on the super-tall buildings. The case study shows that this method is simple and practical and has application value. The calculation also shows that TMD mainly controls the wind-induced vibration acceleration of floors, especially when the structural damping ratio is relatively small, but also improves the comfort of use.