框架结构采用调频液柱阻尼器的设计方法研究

摘要

The tuned liquid column damper (TLCD),is a cost-effective passive device to increase the structural damping.The design method for TLCD was evaluated.The most efficient placement for the absorber was determined in accordance with the dynamic characteristics of the structure.The optimum geometric parameters were analysed based on the equation of motion.The optimal frequency and damping with respect to a selected mode of the structure were simplifiedly achieved by comparing with the TMD tuning with the properly transformed Den Hartog's optimal parameters.Finally,the design procedure was gained.The numerical simulation of a 30-storey plane-asymmetric structure illustrates the effectiveness of TLCDs to mitigate the earthquake induced vibrations of plane-asymmetric buildings,and also the feasibility of the proposed method.%调频液柱阻尼器(Tuned Liquid Column Damper,TLCD)是一种有效的被动耗能减振装置.对该阻尼器在框架结构中的设计方法进行研究,先从结构的运动特性得到阻尼器的优化位置,从阻尼器运动方程出发分析了几何尺寸,然后对比TLCD-结构与TMD-结构得到阻尼器参数优化的简易方法,最后给出TLCD的设计流程.通过对一30层非对称框架结构进行模拟,验证了理论设计方法的合理性.