Steel Frame Typical Seismic Damage Analysis And The Mechanical Preformance Study

With the development of Times, steel structure is widely used. Steel structure has many advantages. But also exposed many problems in the earthquake. This paper, through a large number of collecting data and images, has analyzed the typical damage form of steel frame, and found the failure of node accounted for large proportion, in order to enhance the awareness of earthquake damage and understanding, I have finished the simulation test of the welding edge node which effective to verify this node typical form of earthquake damage, analyzed its mechanical performance and finite element simulation analysis, and lay a good foundation for the analysis of the whole steel framework.This article summarized in steel frame structure form of the typical earthquake damage, classifying damage and comparing the specific location and damage probability, analyze the failure mechanism, find the damage reason, and introduced common reinforcement measures according to different damage.Selecting steel frame welding edge nodes as the object of experimental reason(ratio of 1:1), test adopts horizontal method, applying cyclic loading on the beam end. observing the deformation characteristics and failure form of specimens, analyzing the specimens hysteretic properties, deformation capacity, energy dissipation capacity and stiffness degradation seismic indicators.Using ABAQUS for simulation, simulation under reciprocating displacement loading force, and to compare the simulation results with test results.Using ABAQUS on the overall seismic performance of steel framework to expand the analysis simulation parameters.Using ABAQUS on the overall seismic performance of steel framework to expand the analysis simulation parameters, mainly considering the influence factors of axial compression ratio, height, span and web height.