Analysis Of The Dynamic Characteristics Of Frame Shear Wall Structure Based On The Effect Of Earthquake

In recent years, with the rapid economic development and scientific and technological progress, the frame shear wall structure is widely used. The earthquake disaster occurred frequently, many house buildings were fully destroyed in earthquake. What had happened indeed give the contemplation to us. Therefore, it is necessary to analyze the frame shear wall structure under earthquake effect of the dynamic properties. This paper focuses on the frame shear wall structure of the following research:In this paper,with ANSYS finite element program,the frame shear wall structure is analyzed on the structure calculation analysis. Find various of models with shear wall thickness, floor thickness and shear wall structure stiffness size distributions of the frame shear-wall structure dynamic characteristics influence factors.1、Through the analysis of the20-step mode,its natural frequency and period were obtained. Compared with4fitted model of natural period and mode shapes as well as the changes with natural frequency and the amplitude of the fitted curve.The effect on the structural natural frequency and period are obtained from the structural stiffness changes (mainly the shear walls and floor),the results is that with the increasing thickness of shear wall and floor, and no opening in shear wall, the stiffness of the frame shear wall structure and the structural natural frequency increases, while the period and amplitude decreases. Also the compare the Mode shape diagrams of the model, and it further can demonstrate changes in the shear walls and floor stiffness on the structural natural frequency and period.2、Select4highly representative models from the four-group model and analyze the X and Y direction of response spectrum. Compare the overall deformation of each model, analyze and compare each model floor displacement, as well as drift angle, demonstrate the impact of structural stiffness changes the dynamic characteristics of the frame shear wall structure, obtain the results are that:with the increase in shear wall thickness slab thickness and shear walls with no holes, frame shear wall structure stiffness of the structure of the overall deformation floor displacement and layer displacement angle are reduced to the conclusion.3、By analyzing the changes of history curve of the model at the time of displacement of the input seismic waves, and comparing the displacement of maximum displacement nodes of each model, the stiffness of shear walls and floor, the maximum displacement of the structure was obtained with the shear wall thickness and floor thickness increases, and shear walls without holes, the stiffness of frame shear wall structure increases, and the maximum displacement is reduced accordingly.The main purpose in this paper is to analyze dynamic characteristics of the frame shear wall structure with the changes of the shear walls and floor stiffness, and to provide some reference for the design of worker.