| Some old buildings,which have been used in temples for years,enter into a period of degenerative function,which needs to be identified and strengthened.With the deepening of research on the construction reinforcement industry,the reinforcement of cross-section method is widely applied to the project,and it is proved to be an effective method to increase the cross-section reinforcement method through a large number of experimental studies.This paper on the basis of the research on concrete flange increase high strength concrete not only use new method to study the bearing capacity of reinforced by situation,through experimental research proved that this method is feasible,this method greatly reduces the workload also saves the cost.5 reinforced concrete beams,this paper design the bending test,considering the different strength in flange reinforcement concrete the parameters change,damage to the flange reinforced concrete beam pattern,the ultimate bearing capacity,deformation,etc were analyzed and researched.The results of the study are as follows:(1)The influence of three reinforced concrete and primary girders of different strength on the flexural bearing capacity,fracture resistance and deflection of Liang was studied by means of contrast tests of three reinforced concrete and primary girders of different strength at the wing edge,and of reinforced groove steel and primary girders at the wing edge.The experimental results show that the reinforcement method of reinforced concrete on the girder’s wing edge can effectively improve the bending bearing capacity of the girder and increase the stiffness of the girder.(2)This method of reinforcement of girder in Airfoil is studied.By comparing different strength concrete and grooved steel in Airfoil,it is found that the bending capacity of girder strengthened with high strength concrete and grooved steel is improved by similar.(3)The effect of different diameters of the embedded bolt on the bending performance of Liang was studied under the condition that the strength of reinforced concrete with Airfoil was the same as that of old and new concrete.(4)The formula for calculating the flexural bearing capacity and crack width of reinforced concrete girders by adding wing and ear is put forward,which is basically consistent with the test value.(5)The finite element ABAQUS simulation was performed and compared with the experimental values.The experimental data showed that the finite element simulation results were in good agreement with the experimental results. |
