Forced vibration test of a building with semi‐active damper system
Forced vibration test of a building with semi‐active damper system
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DOI：
10.1002/(sici)1096-9845(200005)29:5
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发表时间：
2000-05
影响因子：
4.5
通讯作者：
N. Kurata;T. Kobori;Motoichi Takahashi;T. Ishibashi;N. Niwa;J. Tagami;H. Midorikawa
中科院分区：
文献类型：
--
作者：
N. Kurata;T. Kobori;Motoichi Takahashi;T. Ishibashi;N. Niwa;J. Tagami;H. Midorikawa
作者研制了一种半主动液压阻尼器（SHD），并于1998年将其安装在实际建筑中。这是半主动结构控制系统的首次应用，该系统可以通过连续改变设备的阻尼系数来控制建筑物在大地震中的反应。通过最大力为100 kN的激振器进行了强迫振动试验，以研究建筑物的振动特性并确定系统的性能。其结果是，主共振频率和阻尼比的一个建筑物，SHD没有连接到，由于非线性构件，如PC幕墙的影响，随着激振力的增加而减小。利用单自由度双线性滞回系统的稳态响应，通过近似共振曲线来估算等效阻尼比。在8个SHD连接到建筑物后，通过稳态振动的响应控制测试来识别系统的性能。半主动阻尼器系统各组成元件均达到了设计要求，整个系统运行良好。版权所有© 2000约翰威利父子有限公司。
The authors developed a semi-active hydraulic damper (SHD) and installed it in an actual building in 1998. This was the first application of a semi-active structural control system that can control a building's response in a large earthquake by continuously changing the device's damping coefficient. A forced vibration test was carried out by an exciter with a maximum force of 100 kN to investigate the building's vibration characteristics and to determine the system's performance. As a result, the primary resonance frequency and the damping ratio of a building that the SHDs were not jointed to, decreased as the exciting force increased due to the influence of non-linear members such as PC curtain walls. The equivalent damping ratio was estimated by approximating the resonance curves using the steady-state response of the SDOF bilinear hysteretic system. After the eight SHDs were jointed to the building, the system's performance was identified by a response control test for steady-state vibration. The elements that composed the semi-active damper system demonstrated the specified performance and the whole system operated well. Copyright © 2000 John Wiley & Sons, Ltd.