Study On The Seismic Response Of The Laminated Rubber Bearings Base Isolated Building

Earthquake is one of the disasters that harass human being all along. The main approach to alleviate the losing of life and belonging is anti-seismic engineering. The evolvement and improvement of anti-seismic design just is the ceaseless summarize and development process we realized that we thorough research and scientific practice. With the development of economic and social, the security and practicability of architecture anti-seismic design is required much rigorous, especially, the industry to the high accuracy technological development, uses traditional the project earthquake resistance design method sometimes not to be able to meet the project actual need.In this paper, the seismic reduction effectiveness and earthquake response of building with a twelve stories frame–shear wall structure adopting base seismic isolation is studied. A finite element ANSYS program used to dynamic time history analysis is developed to analyze the character of the nonlinear structure. Beam-column elements modal and bilinear spring is used to describe the mechanic character of bottom frame structure. And a building with basement isolation, is analyzed as a example in this paper. The EI-centro earthquake wave is inputed on the structure. Some useful results are obtained through lots of comparative analysis. The research results illustrate that base isolation structure can reduce the horizontal earthquake response of superstructure effectively compared with traditional technique. This method is very effective, base shear, floor deformation, acceleration of isolation structure is less than no isolation structure. At the same time, because of superstructure. Seismic functionary decrease, Seismic measure is less than no isolation structure distinctly. So adopting the Seismic measure, accordingly obtain lower building price and improved house useful function.This article analysis result has provided the rationale for the design and popularization of the frame-shear base isolation structure , separated to the design of other base isolation structures, the analysis has the certain reference value, at the same time because it has used the spatial analysis model, compared with the supposition condition many planes analysis method has the big superiority, provided the certain reference for the general structures designer.At last,the research work are generalized and the problems which need further study in the future are discussed.