The Finite Element Analysis Of Y-type Large Cantilever Structure

Y-type Large cantilever structure is one of the emerging forms of architecture in the field of modern architecture. The structure has the advantages of beautiful appearance, simple structure, small occupied space and large space in the lower part, which is very popular in the field of modern architecture. But the long arm is so long, mechanical properties is complex. As the prediction and one of the most destructive natural disasters, earthquake caused serious effect to the development of human society.So it is very valuable to study the mechanical properties of the large cantilever structure under earthquake action. Based on this, this paper uses the finite element software ABAQUS finite element analysis on the static and dynamic characteristics of large cantilever structure. The main contents are as follows:Firstly, the three-dimensional finite element model of the large cantilever structure is established, and the finite element analysis is carried out under the action of dead load, wind load and concentrated load. The analysis results show that the displacement of the cantilever is close to both ends, the larger the displacement, the maximum value of the displacement occurs at the right end of the right end of the large cantilever, which meets the requirements of the specification.Secondly, the modal analysis of the large cantilever structure is carried out, and a total of six order modes are analyzed. The modal analysis can be seen in first order vibration mode, the right endpoints of long cantilever vibration; second order vibration mode, long cantilever right end part with lateral torsional; third order vibration type, cantilever length of the right end of the left circumflex; fourth order vibration type, the left end of the long cantilever with lateral torsional; the fifth order vibration type, the right endpoints of long cantilever with lateral torsional; the six modes, the right endpoints of long cantilever to torsion.Thirdly, the dynamic analysis of the horizontal direction and vertical excitation of the large cantilever structure under earthquake excitation is simulated. The analysis results show that the displacement of the cantilever is close to both ends, the larger the displacement, the maximum value of the displacement occurs at the right end of the right end of the large cantilever, which meets the requirements of the specification.Due to the structure of large tensile stress, for structural safety, structure reinforcement.In the end, the horizontal direction and vertical excitation are compared and analyzed. In terms of displacement, the influence of horizontal direction excitation is greater than that ofvertical direction. In the aspect of stress, the effect of vertical excitation is greater than that of horizontal excitation. From deformation point of view, the greater the displacement on the impact of structural stability, so the horizontal incentive is greater than vertical excitation effect effect, namely the influence of the horizontal seismic force is greater than the influence of vertical seismic force.