Experimental Research On Seismic Behavior Of Section Steel Confined Concrete Prefabricated Shear Wall Structure

In recent years,with the continuously accelerating of the urbanization and the constantly warming-up attention to the global environmental protection,the construction industrialization draws more and more attention.Compared with cast-in-place technology,prefabricated building is able to configure social resource,solve the problems of housing in short supply,raise work efficiency,save labor force and avail to environmentally friendly construction.Thus it can bring greater economic and social benefits.As an important structure in this category,prefabricated shear wall structure can bear the internal force caused by different loads and control the horizontal force,therefore it is appropriate to be applied in high-rise buildings.The scholars at home and abroad conduct a series of researches in this structure and acquire some valuable achievement.Based on the research findings and aimed at the deficiencies of them,this thesis brings forward the section steel confined concrete prefabricated shear wall structure and studies its seismic behavior.The main research contents and conclusions are as follows:(1)Deigning and constructing an experimental model of the new-type structure,which is three-storey,1/2 reduced-scale and single-span.The process shows that the structure has more advantages than other prefabricated shear wall structure,such as simple conformation,quick construction,easily-assurance quality.It is capable of simplifying the technology and improving the efficiency.(2)Via the pseudo-testing of the experimental model,the phenomena are observed and the data of prescriptive measure points are gathered.The experiment shows that the structure is ductility-damaged and it is able to bear bigger ductility deformation.The joint node is on the safe side.(3)The experimental data result shows that the hysteresis curve is well-stacked,the resilience is well,the descending speed of bearing capacity and stiffness is low in the later period,the energy dissipation capacity strengthens with the enlarging of the displacement,the storey drift ration in elastic-plastic stage meets the requirements of the code,the ductility factor of the integral structure is large.(4)The finite element numerical simulation analysis is carried out with ABAQUS,the result shows that the conformation of the structure is rational,vertical joint node can maintain good ductility and integral behavior of the structure.These findings further illustrated that the structure has better seismic behavior.