Research On Mechanical Performance Of Short Pier Wall With Concealed Bracing

RC shear wall with concealed bracing due to its plane is easy to decorate and mechanical performance is superior to common characteristics of short limb shear wall, has broad prospect of application in the high-rise residential. But at present domestic short pier shear wall with concealed bracing stress performance research is less, theoretical research lags behind the engineering practice, so research on its mechanical performance has important theoretical significance and engineering application value.In this paper, by using ABAQUS software for T-shaped short pier shear wall with concealed bracing for finite element numerical simulation analysis. Finite element mod el is established for 12 specimens, Considering the concealed bracing for the impact o n the T-shaped short pier shear wall on component force performance.On that basis,we still consider shear wall wall limb cross section aspect ratio,the influence of axial co mpression ratio and reinforcement ratio of the concealed bracing on component force performance. the thorough analysis of the ductility of the structure under the monotoni c horizontal loading, the bearing capacity and cyclic loads of hysteretic curve and skel eton curve, stiffness degradation performance, analyzed the various loads wall plastic e quivalent stress and strain, the stress distribution of rebar and concrete.The results sho w that the concealed bracing Can significantly improve the hysteretic characteristics an d ductility of the member. Beside,the energy consumption ability also strengthened, stif fness increases, more conducive to earthquake.The shear wall wall limb cross section a spect ratio is very significant to the hysteretic characteristics of the T-shaped short pier shear wall with concealed bracing.In the design, we should increase as far as possible with support of The shear wall wall limb cross section aspect ratio.The influence ofaxial compression ratio is also significant to the hysteretic characteristics of the T-shap ed short pier shear wall with concealed bracing.However, following the increase of the axial compression ratio can strengthen the energy consumption ability also strengthene d. So, in the design, the axial compression ratio should not be too big or too small.In the end, the impact of the reinforcement ratio of the concealed bracing is not big for the T-shaped short pier shear wall with concealed bracing, but the energy dissipation c apacity are improved significantly.This paper deeply analyzes the simple T-shaped short pier shear wall and the T-shaped short pier shear wall with concealed bracing under monotonic load and cyclic load bearing performance, the conclusion of the T-shaped short pier shear wall with concealed bracing of the theoretical research and engineering application of T-shaped short pier shear wall has a certain reference value, laid a good foundation for further study.