Seismic Spectrum Analysis of High-rise Building Based on the Finite Element Methods

With the improvement of living standard, the number of the high-rise buildings grows rapidly in the process of urban construction. The Earthquake Disaster Mitigation design of high-rise buildings has become a major task to protect the life and property safety of residents. Finite element method is one of the most useful tools of solving engineer problems, and the soft-wave ANSYS is favored by many researchers. This paper used ANSYS to make three dimensional models of a building located in Beijing, China. Considering the impact of the horizontal wind and vertical gravity, we did static analysis of the structure to get the strain and stress maps for three directions. Sequently, this paper used classical seismic spectrum data to do seismic spectrum analysis, finally we get the displacement diagrams of three dimensions. Through these figures, we can clearly know that the deformation of top of the structure is the biggest. The analysis results are supposed to provide the theoretical support for aseismatic design of high-rise buidings.