Studies On Seismic Dynamical Analysis Method For The Steel Frame Structure

The steel structure , as a kind of structural style, is widely used inthe current construction .the high strength , the good ducuility, sepecially the light seif-weigh of the steel frame construction, caused the structure to have the wider useable eare and the higher superioritu to satisfy obtained the massive promotions now to the house design demand. Under the seismic dynamic, when the steel frame construction enter the elastic-plastic stage, it must carry on the non-linear dyniamic analysis to the structure. In the elastic-plastic stage, thesteel frame stress and distortion are quite complex, therefore this arcticle mainly studies the steel frame contruction in the elastic-plastic stage of the seismic performance analysis, this article main research content is:1,The steel frame construction make the model in the dyniamic analysis, as well as the essential consideration in the modeling to have the very tremendous influence factor to the structure in the elastic-plastic stage:Second-order effect and Panel zone analysis. And in the modeling , these factors considered that makes the improvement to the elemental area pole model.2,Carries on the nonlinear analysis to the earthquake function under the time historyl analysis and the static Pushover analysis to explain that studies the respective analysis principle and the basis, as well as anayzes the structure finally the inferential reasoning process.3,With SAP structure abalysis procedure to model analysis processing, the result contrast which results in with the example, explains P-â–³effect and Panel zone to the structure the influence, but also through confirms the respective analysis method and the result existence to the time interval and the Pushover analytic method analysis result's comparison in the superiority and the inferiority.