Experiments And Finite Element Analysis Of Shear Behavior For High Strength Concrete Beams With High Strength Stirrups

At present,with the improvement of the construction technology;as well as the popularization of the high strengthened concrete technology,the consumption amount of high strengthened concrete is increasing year by year;besides,its scale of intensity is expected to be improved,too.The application of high strengthened steel bar has the advantage of amount economization and engineering cost reduction,which would, either in a direct or indirect way,leads to great social and economical benefits.In order to keep pace with the world level,it is thus imperative to popularize the application of high-strengthened steel bar.However,to design Shear strength of the beam with the high-strengthened stirrup and high-strengthened concrete by applying the current code can cause huge loss,and block promotion and use of the high-strengthened stirrup and high-strengthened concrete.In the present study,a shear bearing test was carried out on 6 beams made by high-strengthened Stirrup and high strengthened concrete.By the test,we can observe the destructive form and the shear bearing performance of beams made by high-strengthened Stirrup and high strengthened concrete,discuss the loading stress performance of the high-strength stirrup in the loading experiment,investigate the shear bearing performance and deflection of beams made by high-strengthened Stirrup and high strengthened concrete,carry out parameter analysis of the data and those factors that have an influence on the shear strength,such as concrete strength, stirrup strength,ratio of stirrup.To carry out a contrastive analysis between the ANSYS data model and the destructive form observed in experiment on the shear bearing capacity and deformation performance of the beam.In the paper,more variables were considered by changing the concrete strength,stirrup strength,ratio of stirrup,shear span ratio to study the shear bearing capacity and deformation performance of the beam.At last,regression analysis was performed on the data gained in the present experiment and other data from other experiments.In the research findings,a calculation formula on the shear span ratio of shear bearing capacity in the thesis was proposed.