Performance Test Of The Short Limb Of The Steel Reinforced Concrete Shear Wall And Theoretical Analysis

Shape steel reinforced concrete short pier share wall is a new kind of short pier share walls. It can give full play to the advantages of steel and concrete and have better seismic behavior, such as ductility and ability of dissipating energy and seismic behavior than the traditional reinforced concrete short pier shear wall.In built or being bulit reinforced concrete high-rise buildings, Steel-concrete composite pier shear wall has been widely used.How to further enhance and improve the seismic behavior of steel-concrete composite pier shear wall is a need for further study. In this thesis, the reinforced concrete short pier shear wall with the concealed steel columns set on both sides is presented.The structure sets angle-steel or channel-section steel concealed column respectively on both sides of common "一"shaped section short pier shear wall.The author makes systemic seismic behavior static experimental research on both kinds of "一"shaped section short pier shear wall models together.Based upon these studies both data processing and theoretical analysis on the seismic behavior have been done and the better set of shape steel which does well in the seismic behavior can be choosed.The main study work including the following contents:1. Parameter of the shape steel reinforced concrete short pier share walls, experiment equipment, loading system, measurement program and boundary conditions are introduced.2. The experimental study on the seismic behaviorof six shape steel including angle-steel or channel-section steel reinforced concrere short pier shear wall has been made.3. Based on the experimental study,the stiffness and its attennation, bearing capacity,ductility,hysteretic property energy dissipation , Stress and strain and failure phenomena of two kinds of short-leg shear wall with different shape steel equiped are contrastively analyzed and the seismic mechamism of this new shear wall has been opened out.4. Based on the studying result,the mechanical models and formulas of bearing Capacity and stiffness are established. The resilience model is also been suggested.5. Some advice for seismic design of this new shear wall has been put forward.The investigable results show that,In this thesis, the shape steel concealed inreinforced concrete short pier share has a great favour for the bearing capacity .Compared with the reinforced concrete short pier share wall with the channel-section steel, the yield load and ultimate load of the pier share wall with the angle steel concealed columns are obiviously higher. Its yield stiffness is evidently improved. Its hysteretic curve is plumer,its ductility coefficient and energy dissipation capacity have been improved remarkably. The inclined staff of the angle steel has a restaining faction to the developmeng of the crack. The rational allocation of shape steel can bring the short pier shear walls the better seismic behavior.