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结合GB 50009—2012《建筑结构荷载规范》中的等效静风荷载计算方法,研究设置主被动可切换的混合调谐质量阻尼器(TMD/ATMD)的规则高层建筑结构的风振分析与实用设计方法。将控制系统的风振控制效果按照风振响应方差相等的原则归结为对受控结构的附加等效阻尼比,推导了控制系统最优参数和附加等效阻尼比的计算公式,给出了惯性质量平均最大行程比、主动控制力和额定功率的简化计算方法;并讨论了主动/被动控制模式的切换准则。最后给出以风振控制Benchmark结构模型为对象的受控结构及混合调谐质量阻尼系统的设计算例。算例分析表明:建议的设计方法可以方便地进行受控结构响应分析和控制系统参数设计;混合调谐质量阻尼器可以有效减小设计等效静风荷载和结构的动力响应。
Combined with the calculation method of equivalent static wind load in GB 50009-2012 “Load Code of Building Structure”, the wind-induced vibration analysis and practical design of regular high-rise building with TMD / ATMD method. The wind-induced vibration control effect of the control system is reduced to the equivalent equivalent damping ratio of the controlled structure according to the principle that the variance of wind-induced vibration response is equal. The formulas for calculating the optimal parameters of the control system and the additional equivalent damping ratio are deduced. Mass average maximum stroke ratio, active control force and the rated power of a simplified calculation method; and discussed the active / passive control mode switching criteria. Finally, a design example of a controlled structure and a hybrid tuned mass damping system based on the wind-induced control Benchmark structure model is given. The case study shows that the proposed design method can be used to analyze the response of the controlled structure and design the control system easily. The hybrid tuned mass damper can effectively reduce the dynamic response of the design equivalent static wind load and structure.