Seismic Behavior Analysis Of A New Type Of Oblique Column Transfer Structure Applied To Frame-Supported Shear Wall

A series of theoretical and experimental researches on the application of inclined column transfer structure in frame-supported short-leg shear wall structure and frame-supported 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.Firstly, the paper introduces the application of the new inclined column transfer structure in practical engineering. The overall mechanical properties of a actual engineering(building height 95.7m) with the new inclined column transfer and beam transfer are co MPared from cycle, displacement, stiffness ratio, the section size of transfer beam and other aspects. The results show that the new inclined column transfer structure can obviously improve the lateral stiffness ratio between transfer floor and its adjacent upper floor, and decrease the section size of the transfer beam.pick up a single-span model consisted of transfer layer and its upper and lower layers from the actual project, under the condition that other parameters guarantee to be constant, by changing the section size of the inclined column and its internal H-beam to get different analytical stiffness ratio between steel reinforced concrete transfer beam and steel reinforced concrete inclined column. Using finite element software ABAQUS to analyze the stress distribution of different stiffness ratio model under the one-way horizontal displacement loading, to get the most reasonable range of stiffness ratio between steel reinforced concrete transfer beam and steel reinforced concrete inclined column in the new inclined column structure, and to provide some suggestions for the design of the new inclined column structure.Then, apply the matching stiffness ratio obtained by ABAQUS finite element analysis to the practical engineering, and carry on static elasto-plastic analysis to the overall structure with the new inclined column transfer. Analyze the static elastic-plastic curve, story drift displacement and inter-story displacement angle,floor shear and the hinge mechanism of the structure, the results show that the new inclined column transfer structure has excellent seismic behavior.