The Earthquake-Resistant Behavior Theoretical Analysis Of Steel Reinforced High Strength Concrete L-Shaped Short Pier Shear Wall

To study the earthquake-resistant behavior of steel reinforced high strength concrete L-shaped short pier shear wall and analyze the influence degree of different factors on its earthquake-resistant behavior, ABAQUS, one of the finite element analysis software was used to conduct the finite element simulation experiment basing on the finite element analysis theory.Two finite element models which were the same as the test specimens of our group were set up to simulate the loading process of the shear wall under the low cyclic loading. The comparative analysis on failure mechanism, hysteretic curve, skeleton curve and carrying capacity of the shear wall between analysis and experimental results showed that they were in good agreement. The Finite element analysis models of steel reinforced high strength concrete short pier shear wall which were established was proved to be feasible and reasonable. After that, a series of specimens were designed to expand the simulation analysis with orthogonal experimental design method, and the influence of earthquake-resistant behavior on the different axial compression ratios, different ratios of height to thickness, different stirrup spacings, different shear-span ratio, different steel forms and different strength grades of concrete was studied respectively. The results show that all factors have impacts of varying degrees on the earthquake-resistant behavior of steel reinforced high strength concrete L-shaped short pier shear wall, and the impacts of shear-span ratio, ratio of height to thickness, steel form, strength grade of concrete are obvious.In the finite element model’s spatial simulation analysis of the short shear wall,8nodes hexahedral linear shrinkage integral unit is adopted to divide the concrete,4node quadrilateral limited film linear shrinkage strain integral shell element is adopted to divide the steel,2node3-d linear truss unit is adopted to divide the rebar. The results of finite element analysis show that the steel reinforced high strength concrete short pier shear wall structure has a good application future.