Stress Analysis And Application Research Of New Oblique Column Conversion Structure

A series of theoretical and experimental researches on the application of inclined column transfer structure in frame-supported short-leg shear wall structure and framesupported shear wall structure indicate that the ductility and energy dissipation of inclined column transfer structure are lower than those of the reinforced concrete beam transfer structure,especially the destruction of the transfer beam between the inclined columns is relatively serious and may cause bad effects on the seismic.Therefore,in order to make the inclined column transfer structure can be more widely used in practical engineering,it is a crucial question that how to strengthen the ductility of the conversion beam between the inclined columns.Aiming at this problem,the text proposes a new inclined column transfer structure with steel and does a specific analysis on its application in frame-supported shear wall structure.Based on previous research,this paper makes use of ABAQUS,a large universal finite element software,to make a nonlinear finite element analysis of the single column transform structure.First of all,by changing the Angle of inclined column and upper shear wall arrangement,for frame shear wall of transfer floor from inclined column to a new structure for nonlinear analysis.Analysis of transfer floor from inclined column to steel structure under horizontal low cycle loading cycle of hysteresis curve,the deformation capacity and ductility coefficient of seismic performance.Analysis of frame shear wall structure shows that through reasonable design new type inclined column conversion structure has good seismic performance,full hysteretic curve,this kind of structure has good energy dissipation capacity and ductility performance.And it is concluded that when the Angle of inclined column in 70 degrees,when the upper wall limb after arrangement change,Angle of inclined column also is in 70 degrees,can obtain better seismic performance.For the reasonable part in practical engineering design.Then put the ABAQUS finite element analysis to get the right Angle of inclined column used in practical engineering,and its application in high conversion overall static elastoplastic analysis.After the redesign of weak layer and weak component and strengthened and static elastoplastic analysis the whole again.Compared before and after strengthening component in the structure of the static elastic-plastic curve,layer displacement and Angle displacement,floor shear and the structure of the hinge mechanism and so on were analyzed,and the results show that the new type inclined column transfer structure can be used in high conversion,convert the next layer is easy to become a weak layer,but the proper strengthening transformation layer and the lower floors of the column section size,beam section height,the thickness of the shear wall and floor,can significantly improve its seismic performance.