The Study Of A New Steel Seismic Isolator

In China,earthquake happens freguently,and the seismic research relates to the domestic life ,property. The traditional anti- earthquake method is main to regard" anti" as principle. This kind of method depends on the ductility of the structural to consumes the earthquake energy, alleviate the earthquake respond, make the construction fracture but not collapse. It resist the seismic impact by the not flexibility appearance of the structure, therefore allowing it to appear the damage of the certain degree in earthquake. The traditional anti- earthquake method could not have satisfied the demand of modern people completely with the development of social, which make the isolated structures become the point of the concern.In current seismic-isolated method,the rubber interstorey-isolated structure is a kind of comparative mature method.But the rubber is a kind of the material whose anti-pull capability is poor.In earthquake,the construction usually has devastating vertical earthquake forces and twisted stress,specially at substantial earthquakes the vertical earthquake forces which make the struction support massive pull can not be ignored.According to the shortage of the rubber interstorey-isolated structure,my tutor,Li daqing,has put forward a new steel seismic isolator(so far,there are not related paper that have been reported).This thesis will verify the practicable of this new kind of device by experiment.First, This thesis introduces the seismic isolator history,character-ristics and isolator mechanism,then puts forward a new steel seismic isolator whose structure and restrict displacement equipment have been presented. Second,the damper of isolator has been analyzed.Third.the new steel seismic isolator model have been experimented to analyze the horizontal, vertical stressed characteristics of this new structure,to understand how many vertical forces the new structure can support,to draw the horizontal forces-displacement picture.Ilt is the practicable of this new kind of device that the thesis aimed at. This thesis has also studied the stability of the new isolator with no horizontal,analyzed the horizontal stiffness and stability of the new isolator by the Zhou xiyuan's method.At last,the isolator mechanism has been studied from the prospect of enery.And the combination of the new isolator and the rubber interstorey-isolator has been studied to find out the better isolator.