Investigation on Techniques for Wind-induced Vibration Control of of Self-standing High-rise Structures
In this paper, the damping devices and their design methods for self-standing high-rise structures under wind loads are studied. Firstly,according to the characteristics of self-standing high-rise structures, three tuned frequency damping devices (Ring shape tuned mass damper, Ring shape tuned liquid damper and Ring shape tuned liquid column damper) are designed, and their mechanical model are deduced in the paper. Secondly, on the basis of the equivalent damping concept and the wind resistance design methods in China codes, the unified design methods of these damping devices for self-standing high-rise structures are established. Lastly, the wind-induced vibration control designation of two numerical expamples is presented using the proposed design method, whose effectiveness is confirmed by time history analysis method at the same time. The study shows that, the three ring shape damping devices designed in this paper are applicable to the vibration control of self-standing high-rise structures, and the analyze results show that the mean relative error between the results using equivalent damping method and time history analysis method is only 5.37%, so the proposed design method has a high precision, and can be used for the vibration control designation of self-standing high-rise structure under wind loads.
1. Jiangsu Key Laboratory of Structure Engineering, Suzhou University of Science and Technology, Suzhou 215011, China
2. Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education, Southeast University, Nanjing 210096, China
3. Suzhou Rainbow Huading Chimney Manufacturing Co.Ltd., Suzhou 215003, China
Abstract：In this paper, the damping devices and their design methods for self-standing high-rise structures under wind loads are studied. Firstly,according to the characteristics of self-standing high-rise structures, three tuned frequency damping devices (Ring shape tuned mass damper, Ring shape tuned liquid damper and Ring shape tuned liquid column damper) are designed, and their mechanical model are deduced in the paper. Secondly, on the basis of the equivalent damping concept and the wind resistance design methods in China codes, the unified design methods of these damping devices for self-standing high-rise structures are established. Lastly, the wind-induced vibration control designation of two numerical expamples is presented using the proposed design method, whose effectiveness is confirmed by time history analysis method at the same time. The study shows that, the three ring shape damping devices designed in this paper are applicable to the vibration control of self-standing high-rise structures, and the analyze results show that the mean relative error between the results using equivalent damping method and time history analysis method is only 5.37%, so the proposed design method has a high precision, and can be used for the vibration control designation of self-standing high-rise structure under wind loads.
陈 鑫1 李爱群2 王 泳3 张志强2. 自立式高耸结构风振控制方法研究[J]. 振动与冲击, 2015, 34(7): 149-155.
Chen Xin1 Li Ai-qun2 Wang Yong3 Zhang Zhiqiang2. Investigation on Techniques for Wind-induced Vibration Control of of Self-standing High-rise Structures. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(7): 149-155.
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