Nonlinear Finite Element Analysis And Regularity Distribution Of Seismic Behavior Of Inclined Column-shaped Transfer Floor Of Framed Short-leg Shearwall Structures

The inclined-shape column transfer floor of short-leg shear wall structure havebeen enormously used in the modern architecture.However,most of the seismic behaviorstudy of this type of structure are based on experimental level.Relatively,the theoreticalsimulation are rare.As we all know,the design of transfer floor is critical to the modernmultifunctional complex building. Based on the existing experiments,the paper utilizedthe large general finite element software ABAQUS to analysis three specimens W9-1、W9-4and W9-5, then compare the numerical data to the experimental results.includingthe restoring force curve,displacement ductility and the macroscopic failure mode.Thenanalysis different parameters including beam height, axial compression ratio, shear wallwidth-thickness ratio and angle of inclined column on structural seismic performance.Through the nonlinear analysis of three samples and the comparison with theexperimental results figured that the two are in good agreement. Mainly in the state ofstress, the development of crack, load transferring path and the final failure mode.The further nonlinear analysis of all specimens showed that, to a certain extent(0.1-0.55), improving the shear wall axial pressure ratio can improve the bearingcapacity and seismic performance, according to the numerical data,the bearing capacityand the displacement ductility of the specimens achieve the best when the axialcompression ratio is0.5. Raising the shear wall width-thickness ratio can effectivelyimprove the stiffness and bearing capacity, when the shear wall width-thickness ratio is8, the displacement ductility coefficient test the best. Changing the transfer beam heightwill significantly change the bearing capacity and the plastic deformation capacity ofthe specimens, the paper thinks that the seismic behavior reach the best when thetransform beam height is300to450millimeters (height span ratio is1/6.5to1/4.5).withIncreasing the angle of the inclined column, displacement the ductility and bearingcapacity of the specimens decrease,the analysis data of the paper showed that theseismic behavior and the bearing capacity of samples reach the best when the angle is59°.