Finite Element Simulation Of Seismic Behavior Of Assembled Bolt-connected Shear Wall

Driven by the sustained and high-speed growth of domestic economy,the strong development of the country combined with the construction industry of our country.It is the primary task of the current construction industry to realize the housing industrialization by vigorously popularizing the assembled building structure system.The most reliable and commonly used connection mode in bolted shear wall structure has the characteristics of bending resistance,high shear strength and reliable and convenient connection.Efficient positioning,lifting and anchoring construction methods can be used for quick and effective installation.Compared with the traditional connection method,there are less wet work,simple operation,high connection quality,and some steel is removed by adding rubber plug.The material can still be reused and is widely used in engineering.In this paper,a new connection mode is proposed,and the finite element analysis is made by using the ABAQUS software,and 7 different shear wall models are designed for the analysis of force performance.The main research contents are:(1)In order to verify the rationality of this connection,the paper sets up the comparison of cast-in-place shear wall with the same size and material parameters,and carries on the same load loading mode and the same parameter setting for both,because there are few related data,in order to verify therationality of this kind of connection mode.The same modeling method is adopted.The connection mode of assembled bolted shear wall can effectively strengthen the strength of shear wall joints and meet the design requirements of strong joints and weak plates.The bearing capacity and energy dissipation capacity of the assembled bolted shear wall are better than that of the cast-in-place shear wall.Although the ductility of the wall is weaker than that of the cast-in-place shear wall,the ductility coefficient is within a reasonable range,and the ductility of the wall is good.Resistance of assembled Bolt Shear Wall The seismic performance can meet the requirements and the connectivity is better than the cast-in-place shear wall.(2)Considering the influence of axial compression ratio,stud arrangement and plate thickness parameters on the seismic performance of assembled bolted shear wall,the hysteretic behavior,deformation capacity and failure pattern of shear wall are analyzed.The greater the axial compression ratio is,the more obvious the brittleness is,the higher the bearing capacity is,but the worse the deformation capacity is.Reducing the stud arrangement of shear wall joints in a certain range will not significantly reduce the bearing capacity and deformation capacity of shear wall,so it can be reasonably reduced in the design of stud layout to save materials.The shear wall with lower thickness still meets the requirement of seismic performance,but the joint of shear wall will be destroyed before the wall plate,so the thickness of shear wall should be controlled in a reasonable way.Perimeter.