Simulative Analysis And Optimization On The Static Property Of T-shaped Shot-leg Shear Wall

According to the finite element theory and the computer simulative principle basic mentality, using finite element analysis software ANSYS,the load capacity,deformation capacity and ductility of T-shaped short-leg shear wall are tested by push-over simulative test,and carried on the optimized analysis to its influential factors.First 3D unit SOLID65 is used in ANSYS to establish the finite element analysis model of T-shaped short-leg shear wall.Then changing some influential factors such as concrete strength rank,reinforcement ratio,ratio of axial compressive force and sectional depth-thickness ratio,the simulative test is carried on the T-shaped short-leg shear wall.Though grouping comparison method the paper analyzes the influence of each factor to the load capacity,deformation capacity and ductility, as well as have the reasons why it leads to the influence,then carries on the optimized analysis, discovers the optimized value of each influential factor,and does the analysis to the broken process of T-shaped short-leg shear wall.When concrete strength rank,reinforcement ratio,ratio of axial compressive force and sectional depth-thickness ratio obtain the optimized value and the total reinforcement invariable situation, T-shaped short-leg shear wall added hidden column and hidden resistance are carried on the simulative test through changing the reinforcement ratio of the hidden column and hidden resistance section.Though grouping method,the paper analyzes the influence on changing reinforcement ratio to the load capacity,deformation capacity and ductility of the added hidden column and hidden resistance of T-shaped short-leg shear wall, and carries on the optimized analysis, discovers their optimized value. Finally, under the premise each influence factor obtains the optimized value, the load capacity, deformation capacity and ductility has carried on the comparison among T-shaped short-leg shear wall, the added hidden column and hidden resistance of T-shaped short-leg shear wall.The simulative test real reflect the response of T-shaped short-leg shear wall in the axial compression and gradually increasing horizontal side force together.The test result indicated that through changing concrete strength rank,reinforcement ratio,ratio of axial compressive force and sectional depth-thickness ratio influence factors can enhance the dehiscence, yield and limit load of the specimen, but should synthesize consider the relations among they and deformation capacity and ductility. Through optimized analysis of some influence factors :concrete strength rank,reinforcement ratio,ratio of axial compressive force and sectional depth-thickness ratio who affect the load capacity , deformation capacity and ductility, discovers its optimum composition,provides some suggestions and the basis for the design of T-shaped short-leg shear wall.