Analysis Of Seismic Influence To Several Structure Model Based On Structural Seismic Response Observation Array

Abstact:Whether the structure calculation model is reasonable or not will directly influence the result of seismic analysis of structure. To study the effect of structure calculation model on the numerical simulation results of seismic response of high-rise building, this paper select a structure seismic array as the research object. Based on the software ABAQUS and seismic acceleration record of Yaoan in 2009, analyzed the dynamic time history elastic response of various models of the building and compared with the physical record.The main contents presented in this paper are as follows.(1) Emergency command center of disaster prevention and reduction of the People’s Government of Yunnan Province is selected as a example,2D and 3D model which are based on rigid base is builded as well as soil-structure model.(2) The obtained seismic observation data of Yaoan earthquake in 2009 are used to employ for the elastic time-history analysis of the 2D model and 3D model of the structure. The comparison between the time-history analysis results and the recorded data after Yaoan Earthquake shows that the calculation results of the 3D models have a good agreement with the recorded data. Thus,two-dimensional model can not enough reflect the dynamic performance of the structure, three-dimensional model should be used as much as possible when a high-rise building is studied under ground motions.(3) According to the geological exploration data, two soil condition model (horizontal layering and inclined layering) are assumed. The comparison between the time-history analysis results and the recorded data after Yaoan Earthquake shows that the calculation results of the inclined layering model is bigger than the recorded data in the both direction. Thus, soil condition has a obvious significance on the dynamic performance of the structure, we should select a model like real soil as far as possible if not it will bring big errors when a high-rise building is studied under ground motions.(4) The comparison between the time-history analysis results of rigid base and soil-structre and the recoreded data after Yaoan Earthquake shows that considering soil-stucture interaction effect conforms to the actual.