中文摘要：

近年来自立式钢管结构在动力作用荷载下的损伤和倒塌时有发生，调谐液柱阻尼器（Tuned Liquid Column Damper, TLCD）作为一种调频减振器，特别适用于高耸结构的振动控制。围绕环形TLCD在自立式钢管结构中的应用，介绍了环形TLCD的构造，并推导其力学模型，进而建立了自立式钢管结构环形TLCD减振的动力方程。随后，根据自立式钢管结构试验模型设计了试验用的环形TLCD，并确定了加载与测试方案。针对自立式钢管结构，提出了基于模拟退火算法的模型修正方法，并以底部转动刚度和刚度修正系数为变量，以前3阶实测频率为目标，进行了算例研究，修正后的数值模型频率最大误差仅为1.74%。最后，开展了环形TLCD减振试验，并结合修正后的数值模型对试验结果进行了比较分析。研究表明，试验中采用的环形TLCD能够使自立式钢管结构等效阻尼比由0.0134增加到0.0267，从而有效减小了结构动力响应，且所编制的程序能够一定程度预测该类减振结构体系的动力响应。相应的数值分析方法与模型试验能够为自立式钢管结构环形TLCD的设计与应用提供参考。

英文摘要：

Recently, there have been some cases of the damage or collapse of the self-standing steel-tube structures due to dynamic loads. Tuned Liquid Column Damper （TLCD） is a tuned absorber which is very suitable for vibartion control of these stuctures. This paper focuses on the application of TLCD in self-standing steel-tube structures. The configuration of the ring shape TLCD is introduced firstly, and its mechanical model is deduced. Then the dynamic equation of the self-standing steel-tube structure with ring shape TLCD is established. According to the experimental model of a self-standing steel-tube structure, a ring shape TLCD is designed for the experiment, and both the loading and testing schemes are confirmed. A model updating method based on Simulated Annealing algrithm is proposed for the self-standing steel-tube structures, and the numerical case study is also conducted. In the study, the design variables are the base rotating stiffness and stiffness modification factor, and the objective are the first three frequencies tested. The maximal error of these frequencies of the updated numerical model is only 1.74%. Lastly, the vibration control experiment for the structure with ring shape TLCD is conducted, and by using the updated model, the results of the experiment are compared and discussed. The investigation shows that the ring shape TLCD used in this experiment can increase the equivalent damping ratio of the self-standing steel-tube structure from 0.0134 to 0.0267, so the dynamic response may be reduced effectively. And the programme can predict the dynamic responses of the self-standing steel-tube structures with ring shape TLCD in some degree. Both the numerical analysis method and the dyamic experiment may offer some reference for the design and application of the ring shape TLCD used in the self-standing steel-tube structures.