Basic research on connected control for multi high-rise buildings aimed at living comfort-ability and safety against strength earthquakes or strong winds

主动质量阻尼器主要用于减少由小到中等强度地震或强风引起的高层建筑的振动，然而，这种设备在减轻由大地震或超高层建筑中发生的极低频振动运动引起的振动方面已经变得无效，因为很难获得足够的控制力来控制这些运动。为了解决这些问题，本课题提出了连接控制方法（CCM）。该方法将两个或多个建筑物通过分别安装有半主动、主动或混合控制装置的通道连接起来，通过建筑物之间的相互作用力对建筑物进行控制。该方法具有在低频工况下获得足够的控制力的优点。此外，还预计该方法将具有其他优点，如提供舒适的生活，而不需要风激励的努力，以及在塔楼之间使用连接桥的立方体人行道方便生活。在本研究中，MR阻尼器已发展成为构建CCM系统的有效半主动控制装置之一，用于多建筑结构的地震反应控制。利用改进的神户波和EI Centro波对四栋建筑结构进行了地震反应控制，验证了控制的有效性。研究结果表明：(1)CCM方法对多建筑结构的地震反应控制是有效的。(2)研究表明，仅一个MR阻尼器即可控制4个建筑结构的两种振动模态。(3)应用修正地震波的试验结果表明，所研制的磁流变阻尼器适应半主动控制，对地震反应控制有效。

The active mass dampers are used mainly in order to reduce the vibration in high rise buildings caused by small to mid strength earthquakes or strong wind, however this equipment has been rendered ineffective in mitigating the vibration caused by large earthquakes or very low frequency vibratory movements which occur in ultra-tall buildings, because it becomes difficult to obtain enough control force to control these movements. In order to solve these problems, Connected Control Method (CCM) has been proposed in this research project. According to this method, two or more buildings are connected by a passage installed with semi-active, active or hybrid control devices, respectively, and the buildings are controlled through the interactive forces among them. This method has the merit of obtaining sufficient control force under low frequency operations. In addition, it is also expected that this method will have further merits such as a providing comfortable living without the efforts of wind excitation, and convenient living with cubic walkways using connecting bridges between towers.In this research, the MR damper has been developed as one of effective semi-active control devices for constructing the CCM system to seismic response control of multi-building structures. Effectiveness of seismic response control for a four building structures is demonstrated by simulation using the modified Kobe and EI Centro waves. The following research results were obtained(1)The CCM is effective for seismic response control of multi-building structures.(2)It is demonstrated that only one MR damper controls two vibration modes of four building structures.(3)From the experimental results applying the modified earthquake wave, it is found that the developed MR damper is adapted to the semi-active control and is effective for seismic response control.