Research On Seismic Performance Of Prefabr:icated Shear Wall With Slurry Anchor Connection

Assembled shear walls can be industrially produced and produced,shortening the construction period,saves manpower and material resources,and can effectively control dimensional error and appearance quality,At present it has been widely studied and applied at home and abroad.In this paper,the seismic performance of the slurry-anchored assembled shear wall is studied.The ABAQUS ifinite element analysis software is used to determine the influence of each parameter on the seismic performance of the slurry-anchored assembled shear wall.The practical application of the wall provides a reference.The specific research content of th,is paper is as follows:(I1)Based on the existing pseudo-static test of fabricated shear wall,the experiment is carried out by ABAQUS.The concrete is C3D8R unit and the steel is T3D2 truss unit.With separate modeling,the steel bars are embedded in the concrete,and the contact faces of the shear wall and the ground beam are in face-to-surface contact.By applying vertical load and horizontal displacement loading analysis,the finite element simulation agrees well with the experimental results,which lays a foundation for subsequent parametric analysis.(2)The low-cycle repeated loading of the shear-bonded shear wall was carried out,and the aspect ratio,axial compression ratio and j,oint length of the horizontal joint were changed to calculate and analyze the hysteresis curve,skeleton curve and stiffness degradation.Curves and energy cornsurmption curves,etc,to study the seismic performance of the slurry-bonded assembled shear wall.The results show that with the increase of the aspect ratio,the bearing capacity of the specimen decreases overall,and th,e initial stiffness of the specimen decreases,and the rate of stiffness degradation begins to slow down.The ductility and energy dissipation capacity of the specimen are high.The width ratio is getting bigger and better.When the axial compression ratio is increased,the bearing capacity of the test piece is correspondingly increased,and the energy consuming ability of the test piece is also weakened.After the longitudinal joint connection length of the horizontal joint of the slurry-anchored joint-type shear wall is greater than the anchor length,the bearing capacity,stiffness and energy consumption of the specimen are not obvious.(3)The calculation and calculation of the diameter of the connected steel bars and the number of rows of connected steel bars are carried out.The results show that when the reinforcement ratio of the longitudinal reinforcement is small,the diameter of the reinforcement at the edge of the wall is increased,and the energy consumption of the shear wall is increased.When the rib ratio is large,the energy consumption of the shear wall decreases as the diameter increases.Changing the number of reinforcing bars in the middle part of the shear wall has a certain influence on the bearing capacity of the shear wall,but it is not significant.