Research And Numerical Analysis On Vibration Response Of RC Frame Structure

The main structural system of selection is still RC frame structure, but the theoretical study of the seismic performance of buildings and inadequate in the design process, as well as stability and other reasons make the construction site where the seismic performance of RC frame structure is not sufficient to withstand earthquakes bring damaging effects. Apply theoretical knowledge virtual excitation method, analysis of frame structures under earthquake, the structure from the elastic phase to the destruction phase reaction process, and in response analysis framework and its characteristics; verify the virtual excitation method in RC Frame Structure analysis on seismic behavior is more convenient and efficient. Mainly in the following research areas:(1) According to information obtained parameters needed to map out a double filtration of white noise model acceleration curve, establish acceleration input model. RC frame using inter-layer displacement obtained by the method of random vibration using SAP2000 and calculated results are compared, research shows that RC frame structure can use the power spectrum analysis model.(2) Based on the theoretical basis of the virtual excitation method, the RC frame structure is simplified shear layer model of RC frame structures made in response to a non-stationary vibration aspects of the analysis; SAP2000 software using the model established by self-vibration analysis and virtual excitation method the results of the model by comparing vibration analysis, showed that the simplified shear layer model is reasonable.(3) Using SAP2000 software, RC frame structures under earthquake response of an in-depth study and analysis, can further enhance the seismic performance design.