The Research On Dynamical Character Of Steel Frame Structure Under Earthquake

Analyzed of displacement response and distribution law of steel frame structuresunder earthquake, and displacement control measures of steel frame structure underearthquake. Proposed and proved that setting supporting at the middle layer of pureframe structure and the upper structure using pure frame structure, the effect ofcontroling structures’s displacement in earthquake displacement is better thansupporting the upper at the whole structure, and more economical. Analyzed of thestructure nodes’ seismic performance and the mechanical response in the earthquake.By doing the mechanical behavior test of the shrink ruler structure under the verticalvibration loading, combined with the numerical calculation of1:1sub-structures,reaserched the mechanical response of the vertical vibration loads. Proposed ductilitygrading method of structure based on the ratio of the structure’s seismic internalforces and the internal force under the more earthquake and rare earthquake, receivednumerical ductility values of the frame beam&column on defferent level.