| In order to analyze the dynamic performance of RC frame structures, the numerical models of RC frame structures were established by using the finite element software ABAQUS in this thesis. The main research works which have been done are listed as follows:(1) The finite element method of RC frame structures were introduced and these numerical methods were verified by using some experiments conducted by other researchers. Based on the secondary development i nterface of ABAQUS, a Plug-ins program Auto Frame which could establish frame structures automatically and a script which could process the data of the dynamic elastoplastic analysis results were developed. These programs could enhance the efficiency of mod eling and processing result data.(2) A RC spatial frame structure was designed for finite element analysis. Three models which include frame structure without slabs, frame structure just with slab mass and frame structure with slabs were employed to the m odal analysis. Moreover, the thickness of slab, the height of beam and the section area of column were used as the variable parameters to find the effects of the slab to the frame structures. These studies showed that the slab mass and the slab constraint of column could affect the lateral stiffness of frame structures.(3) Seven seismic waves were chosen and employed in the dynamic elastoplastic time history analysis of RC frame structures. In the research, the acceleration and displacement time history of the top floor, the maximum story drift and the seismic base shear were analyzed to show the effect of slabs. The slab mass and the stiffness of slabs have some influence on the seismic performance of RC frame structure s. |
