The Research On The Calculation Method Of Damping Ratio Of Structures With Energy Dissipation Devices

The earthquake this natural disaster with human never stopped, as to reduce casualties and economic losses caused by the earthquake, professionals at home and abroad have done a lot of related research, they have achieved many results, Seismic technology from conventional to now energy dissipation technology and isolation technology, damping technology in maturity.Our country has already familiar with the application of the conventional seismic technology, energy dissipation technology and isolation technology because of its good effect,countries are also being used,earthquake disasters in recent years,let us recognize,on seismic fortification of new construction,it is to fundamentally reduce the earthquake disaster of fire damping construction, a lot of new and existing building structures using energy dissipation technology,the application of this technology needs the basic theory of technology maturity,however,in he actual design process, design of structure with energy dissipation devices is a reciprocating iterative, engineering design personnel in general is not easy to master, design the longer cycle. One of the key factors is the energy dissipation shock absorption structure design for the additional damping ratio of structure design of energy dissipation,no matter before estimating the added damping structure ratio, or in the design on the structure of the additional damping ratio size confirm, for the practical design of energy dissipation damping structure are crucial,it based on design experience on the contrast,sunned up a method to determine the additional damping ratio of energy dissipation structure,the research results of this paper,the engineering designer may use this method to design structure.The main research of this thesis mainly include following contents:1, based on a large amount of related research, summarizes the calculation of energy dissipation characteristics, structure system of fortification standards, design methods and additional damping ratio;2,combined with the design experience,summed up a comparison to determine the energy dissipation method of additional damping ratio of the structure;equivalent algorithm will be to introduce rules of damping structure design technology of fire in Urumqi City, but not on the analysis of relevant theories, only is based on years of design experience,combining the engineering examples have been finished, for time history analysis to verify the effectiveness of the comparison algorithm, and provides the reliable theoretical basis for quote this method;3, through a simple model, application software of the simulation of seismic wave, the input structure of different damping ratio,compared the structure of the dynamic(seismic)time history response affected by damping radio;4, combined with the examples of these two projects have been completed, WUQIA XINHUIXIN building and teaching building,the establishment of PKPM model(non control structure model)and ETABS model(the controlled structure respectively),seismic wave input to two kinds of model,do the time history analysis,receive time history response contrast structure,in order to determine the additional damping energy dissipation reduction the structure of the additional damping ratio, the ratio of income and the practical engineering of additional damping ratio were compared, the validity of this paper summarizes the comparison algorithm verification.