Non-Linear Fem Analysis Of Steel Fiber Reinforceo Concrete Shear Walls

With the advancement of science and technology, and the speed-up of urbanization process, high-rise buildings have become the main form of urban infrastructure, high-rise building also has become the common structure, and the mechanical behavior of high-rise building was be concerned by designers and researchers more and more. Shear wall structure have good seismic performance and lager lateral stiffness, it can reduce the sway of building effectively, so the shear wall structure has been used in high-rise buildings widely. But, there is less research of steel fiber reinforced concrete shear walls now-days, and the theoretical research of nonlinear finite element analysis which in steel fiber reinforced concrete shear walls was also seldom.This text was based on the test results of 13 shear walls, and also based on the characteristics of steel fiber reinforced concrete, in this paper it has researched the method of nonlinear finite element analysis which in steel fiber reinforced concrete shear walls, and also has wrote the program of finite element analysis, the main contents in this text was:(1) Describes finite element analysis in steel fiber reinforced concrete shear wall current status of research, According to this test, build and test prototypes match the finite element model, and material properties and force to choose a reasonable constitutive model, and using practical parameters. Test uses a low-cycle loading, the finite element analysis with step set out to simulate the low-cycle loading, and select reasonable failure criterion and convergence criteria and correct solver;(2)Prepared shear wall of steel fiber reinforced concrete in low cyclic Loads ANSYS analysis program, have the results of shear cracks in the distribution and stress and strain cloud, the hysteresis curve, and so on.according to compared to the experimental results, to verify the feasibility of the program, numerical simulation and experimental results, good agreement;(3) Comprehensive finite element analysis and experimental results on impact of steel fiber reinforced concrete shear wall under the influence factors are analyzed. The main factors analysis is concrete strength and steel fiber volume fraction, and analysis these factors on the walls of the internal force distribution;(4) Analysis the Aspect ratio of steel fiber reinforced concrete shear wall is influent the bearing capacity and ductility.