| Assembled buildings with good quality,high construction efficiency,small amount of template usage,less environmental pollution,and good social and economic benefits,be actively promoted by our country.Assembled composite shear wall is a kind of new type of prefabreicated shear wall structure which uses confined concrete to improve the bearing capacity and ductility of shear wall.In order to perfect the design theory of this kind of shear wall structure.This artical will study on seismic performance of shear walls.The main contents of the researches include:(1)Assembled composite shear wall damage forms and mechanisms.(2)The influence of axial compression ratio,ratio of reinforcement and steel ratio on the seismic performance of the assembled composite shear wall.(3)Assembled composite shear wall’s carrying capacity,energy consumption and ductility and other performance analysis.(4)Nonlinear Finite Element Analysis of Seismic Performance of assembled composite shear wall.(5)Shear load-bearing capacity of assembled composite shear wall.Through the pseudo-static test and finite element analysis of 12 shear walls with different parameters,the following main conclusions are obtained:(1)merchant steel on the load-bearing capacity,deformation capacity,anti-collapse ability of the shear wall has a significant role in promoting.Assembled composite shear wall performance is obviously better than ordinary reinforced concrete shear wall,ans the seismic performance is good.(2)The axial compression ratio increases,the load-bearing capacity of the assembled composite shear wall increases,the rigidity increases,while the number of cycles decreases,ductility and cumulative energy consumption decreases.(3)Ratio of reinforcement increases,the combined load-bearing shear wall ultimate load increases,the deformation capacity increased.(4)With the increase of steel ratio,the bearing capacity and ductility properties are improved,the rigidity is increased and the rigidity degradation is slowed down. |
PDF Full Text Request