Abstract:China is an earthquake prone country; earthquakes endanger people＇s lives and cause destruction of property.Therefore,researchers have raised serious concern on the seismic performance of buildings and how to improve them.Since the last century,the structural vibration control technology has been widely studied both within the country and abroad.Tuned mass dampers （TMDs） are one of the applications of passive control techniques that have good shock absorbing functions in earthquake engineering and can effectively protect buildings and internal facilities.With the development of the housing industry,small high-rise buildings have become common.In order to improve the seismic performance of high-rise structures and achieve the desired reliability and validity of the damping design,the concept of a roof insulation layer and lead rubber beating as a TMD device is proposed.Compared to the traditional TMD,a roof insulation layer TMD has advantages in terms of structuring and installation.In order to study the damping effect of the new TMD control device,a small high-rise building having a roof insulation layer and lead rubber bearing as the TMD device,is studied.In this paper,the damping effect of the TMD device is analyzed using a dynamic time history analysis method with the SAP2000 finite element software.The results show that the roof insulation TMD device can effectively reduce the dynamic response of structures.The displacement and acceleration of the floor decreased by about 20 ％,the inter storey displacement; decreased by about 30 ％,and the interlaminar shear force decreased by 20 ％～30 ％ on an average.Therefore,using a roof insulation layer and lead rubber beating,a feasible and practical damping system can be obtained for small high-rise buildings.
