Application Research Of Combined Arrangement Damper On Vibration Control Of High-rise Buildings

Earthquake is one of the common natural phenomena in nature,which has the characteristics of large damage,high frequency and wide impact.Every major earthquake will bring incalculable property losses and tens of thousands of casualties.So far,we have not been able to accurately predict when,where,how strong and how wide the impact will be,and to issue effective earthquake warning in time.High-rise buildings have become an important symbol of economic development and technological progress of a country and a region,as well as one of the comprehensive evaluation indicators to measure urban development,and will also become a shining business card of the city image.After entering the new century,China's urbanization process has been accelerated,social and economic development has been rapid,construction land has been decreasing,construction technology and building materials have been innovated,and the development of high-rise buildings has entered a period of rapid growth.How to ensure the safety and reliability of high-rise buildings and protect the life and property of buildings through reasonable shock absorption design has become a research topic for many experts,scholars and Shock absorption analyst.On the basis of reading the relevant literature and combining with the actual engineering shock absorption analysis,this paper takes a high-rise building in Kunming as the research object.On the basis of reading relevant documents and combining with the actual engineering shock absorption analysis,this paper takes a high-rise building in Kunming as the research object,uses structural finite element software SAP2000 to carry out shock absorption analysis on BRB and VD structures to verify the effect of structural shock absorption.At the same time,the BRB-VD structure is combined arranged.The comparison of BRB or VD layout separately verifies the advantages of combined arrangement of dampers for high-rise buildings.The main contents of this paper are as follows:1.Collect and sort out the relevant technical data of high-rise buildings at home and abroad,and summarize their development status,structural system changes,etc.2.The theory of energy dissipation and seismic reduction based on energymethod,the restoring force model of structure and the common mechanical models of BRB and VD are deduced theoretically.3.The corresponding unobstructed structure is established by using the structural finite element software SAP2000.Through the analysis of the response spectrum method,the model design software YJK is compared with the model,and the correctness of the model is discussed.At the same time,the corresponding arrangement of the damper is determined.4.According to the requirements of relevant codes and choosing appropriate seismic waves,energy dissipation structure with BRB,VD and BRB-VD are arranged separately.Through the elastic and elastic-plastic time history analysis of small and large earthquakes,the shock absorption effect is discussed.The three different layout schemes are compared comprehensively,and the superiority of the combined arrangement of dampers is discussed.The theory is provided for the application of the combined arrangement of BRB-VD in engineering practice.