Seismic Response Study In Deep Foundation Pit Of A Building In Xiamen

China is a vast country with complicated geological and geomorphology,and many earthquakes are frequent,especially in recent years.In addition to the destruction of existing buildings,the earthquake is also destructive to the building under construction,including the destruction of foundation pit works.With the development of urbanization,the number of foundation pits has greatly increased,and scholars have conducted a lot of researches on the static and force rules of the foundation pit in the past,and the impact on the foundation pit dynamic load is obviously insufficient.Based on a large number of literatures,this paper analyzes the seismic response of a deep foundation pit in xiamen based on the finite element analysis.Paper according to "code for seismic design of buildings of intensity of hierarchies,extract the typical El seismic wave and the adaptive correction,meet the requirements of the peak acceleration,get the basic parameters of artificial seismic wave attribute.Through the MIDAS finite element software,the physical model was established,and the static field excavation simulation was carried out,and the stress displacement state after excavation was obtained.The deformation rule is obtained and the field data is compared and analyzed,and the initial stress field is generated for dynamic calculation.Static calculated first,and then according to the calculation data analysis process when the earthquake load,and extract the analysis of the dynamic load effect in a certain period of time corresponding rules,it is concluded that the response of seismic relative displacement,acceleration,velocity,analyze the weak parts and failure form,summarizes this kind of structure form of seismic effect,provides guidance for similar projects.