Application Of Pushover & Time History Analysis On Engineer Structure

When the building encounters the rare earthquake, to ensure the building not to collapse during it ,to correctly grasp structure's destroy status, to trace the whole process of the structure's respond and to find out the weakness of the structure's floors and elements, this paper carries though the pushover analysis and time history analysis of an actual structure.The analysis model came from a built high SRC structure of Japan. The building is making elastic and inelastic analysis through using the national program (PKPM and MIDAS/Gen). And the two analysis methods are more reasonable and combinable with the actual instance than the general seismic analysis methods. This paper mainly discusses the two methods of designing actual project and offers the results of the theory and data.The pushover analysis is essentially static analysis method. It is an inelastic analysis during the linear monotony loads. It can show the actual yield mechanism and the appearance sequence of the hinge, find out the weakness of the structure and gain the pushover figure (floor-shear diagram and element-shear diagram).Time history analysis is carries on after the seismic waves being numbered according to period, input values of seismic wave to vibration equation of system, adopt the method of progressive integral to gain the whole course of the structure's state at the whole earthquake. To discuss the time history analysis, the paper explains many problems, such as the imitation of the resilience curve from the pushover figure, the selection of the seismic waves, the model of dynamical analysis and the establishment and solution of the vibration equation.The analysis results correspond well to the exist values.