Experiment Study And Finite Element Analysis On Seismic Behaviour Of Lightweight Concrete Shear-Wall

Because of more and more tall buildings appearing,the shear wall structure and frame shear wall structure is widely used due to its unique features.Considerable research attention have been attracted to behaviour of common concrete shear-wall,and there are abundant research findings.However,the research of lightweight concrete shear wall are very far from satisfaction.In this paper,four lightweight concrete shear-wall specimens with different style reinforcements and different bars strength are applied to investigate the seismic behaviour through low cycle reciprocate loading test.Different style of reinforcements include longitudinal-lateral direction and diagonal direction with 45 angle. Different bearing bars include hot rolled ribbed bar and high-strength bar . Through the test of four different parameter shear-walls with longitudinal frame,their loading behaviour,deforming behaviour,ductility,hysteresis behaviour, energy dissipation capacity and destruction character have been compared.Clarify the effect of the different style of reinforcements and the different bars strength.Creat the finite element analysis model and simulate the specimens by finite element analysis sofeware. Through comparison it can be shown that the calculated results are in good agreement with the test,indicating the model is satisfiable to the analysis and study of seismic behaviour.Because of the test excluded the influence of vertical loading, the models with different axial compression ratio are calculated ,and study the effection of different axial compression ratio.Considerating the important effect of the side column longitudinal rebar ratio, the models with different side column longitudinal rebar ratio are calculated ,and study the effection of different side column longitudinal rebar ratio.