Comparative Research On The Pushover And Time History Analysis In The High-Building

This paper firstly introduces the static and dynamic elastic plastic analysis method research, and summarizes the static and dynamic elastic plastic analysis method the advantages and disadvantages. Secondly, the static elastic-plastic analysis method and dynamic time-history analysis of the basic principles of the method, and some common static elastic-plastic analysis method are expounded and compared.This paper uses the PKPM software to a16layer of framed structure reinforcement calculation, then uses the SAP2000structural static pushover analysis (Pushover) and dynamic time-history analysis. Concrete frame analysis model using the pole model. In Pushover analysis, choose4kinds of lateral force loading, are uniformly distributed load, power series loading, modal order load and power series inverted triangle is combined with the load, and the displacement control method of Push-over analysis. Get the base shear force displacement curve, vertex structure reach the performance point when the angle of floor displacement, displacement between layers as well as the development of plastic hinge fig, found the weakness of structure and condition, thus the structure seismic performance evaluation.This paper focuses on the static and dynamic elastic-plastic analysis contrast, through the structure pushover analysis, then select two kinds of natural seismic waves and a site of shock wave on the framework model of dynamic elastic-plastic time-history analysis, through static and dynamic elastic-plastic analysis results, the results of time history analysis slants big, but the deviation in the acceptable range. At the same time, an example shows, pushover analysis using lateral force mode is reasonable.